首页 > 最新文献

Advanced Synthesis & Catalysis最新文献

英文 中文
Co(III)‐Catalyzed Regioselective C‐H Dienylation of Indolines and Indoles with Allenyl Carbinol Acetates Co(III)催化吲哚和吲哚与烯基甲醇醋酸酯的区域选择性C - H二烯化反应
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401400
Chandra Mouleeswara Rao Volla, Rahul Shukla, Anurag Singh, Rakesh Shetty
Herein, we present a Co(III)‐catalyzed regioselective C7‐H dienylation of indolines at room temperature employing allenyl carbinol acetate as an efficient dienylating reagent. The reaction proceeds via C‐H activation, regioselective 2,1‐migratory insertion of the allene followed by β‐acetate elimination, resulting in a diverse array of C7‐dienylated indolines. The methodology was further extended to C2‐H dienylation of indoles, affording either branched or linear dienes, contingent on the nature of the substituent present at the allenylic carbon. In addition, hydroarylation of allenes was also successfully achieved with tri‐substituted allenes, which was elusive so far under cobalt catalysis.
在此,我们提出了一个Co(III)催化的区域选择性C7 - H在室温下吲哚类化合物的二烯化反应,使用醋酸乙烯基甲醇作为一种有效的二烯化试剂。该反应通过C - H活化,区域选择性的2,1迁移插入,然后β -乙酸消除,产生多种C7 -二烯化吲哚。该方法进一步扩展到吲哚的C2 - H二烯化,根据烯代碳上取代基的性质,可以得到支链二烯或线性二烯。此外,还成功地用三取代的烯烯实现了氢化芳基化,这是迄今为止在钴催化下难以实现的。
{"title":"Co(III)‐Catalyzed Regioselective C‐H Dienylation of Indolines and Indoles with Allenyl Carbinol Acetates","authors":"Chandra Mouleeswara Rao Volla, Rahul Shukla, Anurag Singh, Rakesh Shetty","doi":"10.1002/adsc.202401400","DOIUrl":"https://doi.org/10.1002/adsc.202401400","url":null,"abstract":"Herein, we present a Co(III)‐catalyzed regioselective C7‐H dienylation of indolines at room temperature employing allenyl carbinol acetate as an efficient dienylating reagent. The reaction proceeds via C‐H activation, regioselective 2,1‐migratory insertion of the allene followed by β‐acetate elimination, resulting in a diverse array of C7‐dienylated indolines. The methodology was further extended to C2‐H dienylation of indoles, affording either branched or linear dienes, contingent on the nature of the substituent present at the allenylic carbon. In addition, hydroarylation of allenes was also successfully achieved with tri‐substituted allenes, which was elusive so far under cobalt catalysis.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"38 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Base‐Mediated Four‐Component Intramolecular Cyclization reaction: One‐pot Access to Imidazole‐4‐(2H)‐ones 碱介导的四组分分子内环化反应:咪唑- 4 - (2H) -酮的一罐途径
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401433
Ganesh Pawar, Indrajeet Barve, Li-Ching Shen, Chung-Ming SUN
A base‐mediated one‐pot, two‐step, four‐component reaction has been developed to synthesize imidazole‐4(2H)‐ones, utilizing commercially available amino acid esters, aldehydes, alkynes, and amino alcohols. Control experiments and isolation of the intermediate revealed the mechanistic details. This four‐component reaction proceeds via imine formation, followed by the nucleophilic addition of alkyne to form a propargylamine precursor. Subsequently, the propargylamine precursor undergoes base‐mediated conversion into 1‐azadiene, followed by in situ ketene formation to generate (allyl‐dene‐amino)prop‐1‐en‐1‐one. The nucleophilic addition of amino alcohol and subsequent intramolecular cyclization provides imidazole‐4 (2H)‐ones exclusively.
利用市售的氨基酸酯、醛、炔和氨基醇,采用碱介导的一锅、两步、四组分反应合成咪唑- 4(2H) -酮。对照实验和分离中间体揭示了机理细节。这个四组分反应首先生成亚胺,然后是亲核炔的加成,形成丙胺前体。随后,丙基胺前体经过碱介导转化为1 -偶氮二烯,然后原位形成烯酮,生成(烯丙基-烯丙基-氨基)prop - 1 - en - 1 - one。氨基醇的亲核加成和随后的分子内环化只提供咪唑- 4 (2H) -酮。
{"title":"Base‐Mediated Four‐Component Intramolecular Cyclization reaction: One‐pot Access to Imidazole‐4‐(2H)‐ones","authors":"Ganesh Pawar, Indrajeet Barve, Li-Ching Shen, Chung-Ming SUN","doi":"10.1002/adsc.202401433","DOIUrl":"https://doi.org/10.1002/adsc.202401433","url":null,"abstract":"A base‐mediated one‐pot, two‐step, four‐component reaction has been developed to synthesize imidazole‐4(2H)‐ones, utilizing commercially available amino acid esters, aldehydes, alkynes, and amino alcohols. Control experiments and isolation of the intermediate revealed the mechanistic details. This four‐component reaction proceeds via imine formation, followed by the nucleophilic addition of alkyne to form a propargylamine precursor. Subsequently, the propargylamine precursor undergoes base‐mediated conversion into 1‐azadiene, followed by in situ ketene formation to generate (allyl‐dene‐amino)prop‐1‐en‐1‐one. The nucleophilic addition of amino alcohol and subsequent intramolecular cyclization provides imidazole‐4 (2H)‐ones exclusively.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"12 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Visible‐Light‐Promoted Photocatalyst‐Free Unsymmetrical Synthesis of Diaryl 1, 2‐Diketones from Terminal Alkynes/ Alkenes and Aryl Halides under the Formate‐Air‐DMSO Condition 甲酸-空气-二甲基亚砜条件下,可见光-光催化催化末端炔/烯烃和芳基卤化物不对称合成二芳基1,2 -二酮
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401310
Xueqin Chen, Xiaoqing Wen, Yang Fu, Yingtian Liu, Rui Tan, Jiahong Li
A method has been developed for the synthesis of symmetrical and unsymmetrical aryl 1, 2‐diketones at room temperature, without the need for transition metals or photocatalysts. This protocol employs aromatic terminal alkynes or alkenes to react with aryl iodides under conditions involving formate, air, and DMSO. Mechanistic studies indicate that formate, air, and DMSO are all necessary conditions, and that the highly reactive carbon dioxide radical anion (CO2•−) generated under these conditions plays a key role in the reaction.
本文提出了一种在室温下合成对称和不对称芳基1,2 -二酮的方法,无需过渡金属或光催化剂。本协议采用芳香末端炔或烯烃与芳基碘化物在甲酸盐、空气和二甲基亚砜的条件下反应。机理研究表明甲酸盐、空气和DMSO都是反应的必要条件,而在这些条件下产生的高活性二氧化碳自由基阴离子(CO2•−)在反应中起着关键作用。
{"title":"Visible‐Light‐Promoted Photocatalyst‐Free Unsymmetrical Synthesis of Diaryl 1, 2‐Diketones from Terminal Alkynes/ Alkenes and Aryl Halides under the Formate‐Air‐DMSO Condition","authors":"Xueqin Chen, Xiaoqing Wen, Yang Fu, Yingtian Liu, Rui Tan, Jiahong Li","doi":"10.1002/adsc.202401310","DOIUrl":"https://doi.org/10.1002/adsc.202401310","url":null,"abstract":"A method has been developed for the synthesis of symmetrical and unsymmetrical aryl 1, 2‐diketones at room temperature, without the need for transition metals or photocatalysts. This protocol employs aromatic terminal alkynes or alkenes to react with aryl iodides under conditions involving formate, air, and DMSO. Mechanistic studies indicate that formate, air, and DMSO are all necessary conditions, and that the highly reactive carbon dioxide radical anion (CO2•−) generated under these conditions plays a key role in the reaction.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"74 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Brønsted Acid‐Catalyzed Enantioselective and para‐Selective Addition of Phenols to 1‐Alkynylnaphth‐2‐ols Brønsted酸催化苯酚对1 -炔基萘- 2 -醇的对映选择性和对选择性加成
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401457
Anjali Dahiya, Kalyan Dhara, Jordan GARO, Julien Gicquiaud, Alexandre Karnat, Murielle Berlande, Philippe Hermange, Jean-Marc Sotiropoulos, Patrick Toullec
A chiral Brønsted acid‐catalyzed synthesis of axially chiral alkenes was developed via an enantioselective and para‐selective Friedel–Crafts reaction between phenols and 1‐alkynylnaphth‐2‐ols. This methodology features an efficient hydroarylation with high functional group tolerance, complete para‐selectivity, excellent yields (up to 99%), and enantioselectivities (up to 94% ee) in the presence of a N‐triflylphosphoramide catalyst. DFT calculations were performed to investigate para‐selectivity and results indicate that both kinetics and thermodynamics parameters are more favorable compared to ortho‐selectivity.
通过苯酚与1 -炔烷基萘- 2 -醇之间的对映选择性和对选择性的Friedel-Crafts反应,制备了一种手性Brønsted酸催化的轴向手性烯烃。该方法的特点是在N -三氟酰磷酰胺催化剂的存在下,具有高官能团耐受性、完全的对选择性、优异的产率(高达99%)和对映选择性(高达94% ee)的高效氢化芳基化。通过DFT计算研究了对选择性,结果表明动力学和热力学参数都比正选择性更有利。
{"title":"Brønsted Acid‐Catalyzed Enantioselective and para‐Selective Addition of Phenols to 1‐Alkynylnaphth‐2‐ols","authors":"Anjali Dahiya, Kalyan Dhara, Jordan GARO, Julien Gicquiaud, Alexandre Karnat, Murielle Berlande, Philippe Hermange, Jean-Marc Sotiropoulos, Patrick Toullec","doi":"10.1002/adsc.202401457","DOIUrl":"https://doi.org/10.1002/adsc.202401457","url":null,"abstract":"A chiral Brønsted acid‐catalyzed synthesis of axially chiral alkenes was developed via an enantioselective and para‐selective Friedel–Crafts reaction between phenols and 1‐alkynylnaphth‐2‐ols. This methodology features an efficient hydroarylation with high functional group tolerance, complete para‐selectivity, excellent yields (up to 99%), and enantioselectivities (up to 94% ee) in the presence of a N‐triflylphosphoramide catalyst. DFT calculations were performed to investigate para‐selectivity and results indicate that both kinetics and thermodynamics parameters are more favorable compared to ortho‐selectivity.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"81 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Imidazolium-dithiocarboxylate zwitterions catalysed ring-opening additions of cyclopropenones 咪唑-二硫代羧酸两性离子催化环丙烯开环加成
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401476
Qi Wu, Fang Zhang, Qichao Zhang, Lin He, Jichang Liu, Guang-Fen Du
Imidazolium-dithiocarboxylate zwitterions (NHC•CS2), a novel organocatalyst that derived from N-heterocyclic carbene (NHC), was used to activate cyclopropenones. Under the catalysis of 10 mol% NHC•CS2, a range of phenols, alcohols, primary and secondary amines react with cyclopropenones to produce trisubstituted α, β-unsaturated esters and amides in 46-95% yield. More than 68 products, including 7 natural product derivatives have been synthesized through this method. Mechanism study showed NHC•CS2 act as a Lewis base to activate the C=C double bond of cyclopropenones and trigger the ring-opening reaction. HRMS analysis indicated the formation of the key adduct of NHC•CS2 and cyclopropenone. More importantly, this study demonstrated completely different catalytic activity of NHC•CS2 and NHC catalysts, the latter one cannot catalyse these reactions.
咪唑-二硫代羧酸两性离子(NHC•CS2)是一种由n -杂环碳(NHC)衍生的新型有机催化剂,用于环丙烯的活化。在10 mol% NHC•CS2催化下,一系列酚类、醇类、伯胺和仲胺与环丙烯发生反应,产率为46 ~ 95%,可制得三取代α、β-不饱和酯和酰胺。通过该方法已合成了68多个产物,其中包括7个天然产物衍生物。机理研究表明,NHC•CS2作为路易斯碱激活环丙烯的C=C双键,引发开环反应。HRMS分析表明,NHC•CS2与环丙烯形成了关键加合物。更重要的是,本研究证明了NHC•CS2与NHC催化剂的催化活性完全不同,后者不能催化这些反应。
{"title":"Imidazolium-dithiocarboxylate zwitterions catalysed ring-opening additions of cyclopropenones","authors":"Qi Wu, Fang Zhang, Qichao Zhang, Lin He, Jichang Liu, Guang-Fen Du","doi":"10.1002/adsc.202401476","DOIUrl":"https://doi.org/10.1002/adsc.202401476","url":null,"abstract":"Imidazolium-dithiocarboxylate zwitterions (NHC•CS2), a novel organocatalyst that derived from N-heterocyclic carbene (NHC), was used to activate cyclopropenones. Under the catalysis of 10 mol% NHC•CS2, a range of phenols, alcohols, primary and secondary amines react with cyclopropenones to produce trisubstituted α, β-unsaturated esters and amides in 46-95% yield. More than 68 products, including 7 natural product derivatives have been synthesized through this method. Mechanism study showed NHC•CS2 act as a Lewis base to activate the C=C double bond of cyclopropenones and trigger the ring-opening reaction. HRMS analysis indicated the formation of the key adduct of NHC•CS2 and cyclopropenone. More importantly, this study demonstrated completely different catalytic activity of NHC•CS2 and NHC catalysts, the latter one cannot catalyse these reactions.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"7 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Latest Insights into Multiply Selective Diels–Alder Reactions Using a Chiral‐Cavity‐Structured Lewis‐Acidic Boron Catalyst 使用手性-空腔-结构Lewis -酸性硼催化剂的多重选择性diel - alder反应的最新见解
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401560
Kai Matsui, Kohei Toh, Tatsuhiro Sakamoto, Manabu Hatano, Kazuaki Ishihara
The latest insights into multiply selective Diels–Alder (DA) reactions is presented, where a chiral‐cavity‐structured Lewis‐acidic boron catalyst is employed. The catalyst ((R)‐1) is capable of recognizing both dienes and dienophiles, primarily due to the influence of the suitable steric factors of its cavity. By taking advantage of the structural and exo‐product‐inducing properties of (R)‐1, even in the presence of a mixture of inseparable dienes, the target products were successfully obtained in high yield with high enantioselectivity. As (R)‐1 exhibited the capacity to differentiate between three‐dimensional isomeric transition‐state structures in DA reactions, this work contributes to the advancement of artificial enzyme‐like catalysis, which has so far remained elusive.
介绍了多重选择性Diels-Alder (DA)反应的最新见解,其中采用了手性-腔结构Lewis -酸性硼催化剂。催化剂((R)‐1)能够同时识别二烯和亲二烯化合物,这主要是由于其腔中合适的空间因子的影响。利用(R) - 1的结构和外产物诱导特性,即使存在不可分离的二烯混合物,也能以高收率和高对映选择性获得目标产物。As (R)‐1在DA反应中表现出了区分三维异构体过渡态结构的能力,这项工作有助于推进迄今为止仍然难以捉摸的人工酶样催化。
{"title":"The Latest Insights into Multiply Selective Diels–Alder Reactions Using a Chiral‐Cavity‐Structured Lewis‐Acidic Boron Catalyst","authors":"Kai Matsui, Kohei Toh, Tatsuhiro Sakamoto, Manabu Hatano, Kazuaki Ishihara","doi":"10.1002/adsc.202401560","DOIUrl":"https://doi.org/10.1002/adsc.202401560","url":null,"abstract":"The latest insights into multiply selective Diels–Alder (DA) reactions is presented, where a chiral‐cavity‐structured Lewis‐acidic boron catalyst is employed. The catalyst ((R)‐1) is capable of recognizing both dienes and dienophiles, primarily due to the influence of the suitable steric factors of its cavity. By taking advantage of the structural and exo‐product‐inducing properties of (R)‐1, even in the presence of a mixture of inseparable dienes, the target products were successfully obtained in high yield with high enantioselectivity. As (R)‐1 exhibited the capacity to differentiate between three‐dimensional isomeric transition‐state structures in DA reactions, this work contributes to the advancement of artificial enzyme‐like catalysis, which has so far remained elusive.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"14 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scalable Electrochemical Dehalogenative Carboxylation without a Sacrificial Metal Anode 无牺牲金属阳极的可扩展电化学脱卤羧化
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401538
Nikola Petrovic, Gabriele Laudadio, Chase A. Salazar, Caleb J. Kong, Jenson Verghese, Alexander Hesketh, Giselle P. Reyes, Jean-Nicolas Desrosiers, C. Oliver Kappe, David Cantillo
A scalable electrochemical procedure for the synthesis of carboxylic acids from organic halides has been developed using a spinning cylinder electrode electrochemical reactor. The electrochemical process is based on the reductive dehalogenation of the starting material followed by trapping of the resulting carbanion with CO2. The protocol is compatible both with organic chlorides and bromides and uses inexpensive graphite and stainless steel as electrode materials. As sacrificial metal anodes are avoided, the method can be readily scaled up in flow mode. The procedure is compatible with a wide range of substrates (24 examples), including aryl and alkyl halides as well as heterocyclic compounds. Multigram scale preparations in flow mode have been demonstrated by processing 600 mL of reaction mixture in an electrolyte recirculation setup.
采用旋转圆柱电极电化学反应器,建立了一种可扩展的有机卤化物合成羧酸的电化学工艺。电化学过程是基于起始材料的还原脱卤,然后用CO2捕获产生的碳。该方案与有机氯化物和溴化物兼容,并使用廉价的石墨和不锈钢作为电极材料。由于避免了牺牲金属阳极,该方法可以很容易地扩展到流动模式。该方法与广泛的底物(24个示例)兼容,包括芳基和烷基卤化物以及杂环化合物。在流动模式下,通过在电解质再循环装置中处理600毫升的反应混合物,证明了多图规模的制备。
{"title":"Scalable Electrochemical Dehalogenative Carboxylation without a Sacrificial Metal Anode","authors":"Nikola Petrovic, Gabriele Laudadio, Chase A. Salazar, Caleb J. Kong, Jenson Verghese, Alexander Hesketh, Giselle P. Reyes, Jean-Nicolas Desrosiers, C. Oliver Kappe, David Cantillo","doi":"10.1002/adsc.202401538","DOIUrl":"https://doi.org/10.1002/adsc.202401538","url":null,"abstract":"A scalable electrochemical procedure for the synthesis of carboxylic acids from organic halides has been developed using a spinning cylinder electrode electrochemical reactor. The electrochemical process is based on the reductive dehalogenation of the starting material followed by trapping of the resulting carbanion with CO2. The protocol is compatible both with organic chlorides and bromides and uses inexpensive graphite and stainless steel as electrode materials. As sacrificial metal anodes are avoided, the method can be readily scaled up in flow mode. The procedure is compatible with a wide range of substrates (24 examples), including aryl and alkyl halides as well as heterocyclic compounds. Multigram scale preparations in flow mode have been demonstrated by processing 600 mL of reaction mixture in an electrolyte recirculation setup.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"24 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
γ‐Terpinene: Biorenewable Reductant for the Molybdenum‐Catalyzed Reduction of Sulfoxides, N‐Oxides and Nitroarenes γ -萜烯:钼催化还原亚砜、氮氧化物和硝基芳烃的生物可再生还原剂
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-22 DOI: 10.1002/adsc.202401387
Raquel Hernández-Ruiz, Marta Solas, Samuel Suárez-Pantiga, María R. Pedrosa, Roberto Sanz
A molybdenum‐catalyzed deoxygenation of sulfoxides, pyridine and quinoline N‐oxides, N‐hydroxybenzotriazoles, as well as the reduction of nitroarenes to anilines, has been developed using monocyclic terpenes such as γ‐terpinene as an environmentally benign hydrogen surrogate. The only byproducts generated are water and p‐cymene, under neat reaction conditions in which the terpene acts as both solvent and reducing agent. These features make this approach a highly attractive and sustainable alternative for the reduction of S−O and N−O containing compounds. Additionally, the reaction exhibited excellent chemoselectivity, tolerating a wide variety of functional groups.
利用单环萜烯(如γ -萜烯)作为环境友好的氢替代品,开发了钼催化亚砜、吡啶和喹啉N氧化物、N -羟基苯并三唑的脱氧以及硝基芳烃还原为苯胺的方法。在纯反应条件下,萜烯同时充当溶剂和还原剂,生成的副产物只有水和对花香烃。这些特点使该方法成为一种极具吸引力和可持续的替代方法,用于还原含有S−O和N−O的化合物。此外,该反应表现出优异的化学选择性,可耐受多种官能团。
{"title":"γ‐Terpinene: Biorenewable Reductant for the Molybdenum‐Catalyzed Reduction of Sulfoxides, N‐Oxides and Nitroarenes","authors":"Raquel Hernández-Ruiz, Marta Solas, Samuel Suárez-Pantiga, María R. Pedrosa, Roberto Sanz","doi":"10.1002/adsc.202401387","DOIUrl":"https://doi.org/10.1002/adsc.202401387","url":null,"abstract":"A molybdenum‐catalyzed deoxygenation of sulfoxides, pyridine and quinoline N‐oxides, N‐hydroxybenzotriazoles, as well as the reduction of nitroarenes to anilines, has been developed using monocyclic terpenes such as γ‐terpinene as an environmentally benign hydrogen surrogate. The only byproducts generated are water and p‐cymene, under neat reaction conditions in which the terpene acts as both solvent and reducing agent. These features make this approach a highly attractive and sustainable alternative for the reduction of S−O and N−O containing compounds. Additionally, the reaction exhibited excellent chemoselectivity, tolerating a wide variety of functional groups.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"137 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NFSI-TEMPO Catalysed Stereoselective Synthesis of 2-Deoxyglycosides from Glycals NFSI-TEMPO催化糖基立体选择性合成2-脱氧糖苷
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-20 DOI: 10.1002/adsc.202401450
Vivek Kumar Sharma, Rima Thakur
2-deoxyglycosides are prominent constituents of diverse naturally occurring glycans and are known to participate in crucial biological pathways. We herein demonstrate NFSI-TEMPO as an efficient organocatalyst for the formation of 2-deoxy-α-glycosides from glycals. For the first time a catalytic behaviour of NFSI-TEMPO combination has been observed. The reaction conditions have been found suitable for the generation of glycosides from commercial alcohols, amino acid, sterol, phenols and monosaccharide derived alcohols. Broad range of protecting groups on both glycal and glycosyl acceptors as well as alcohols of varied reactivity were found to be compatible for the generation of 2-deoxy-α-glycosides in moderate to good yields. The synthetic potential of the newly established transformation was illustrated by application in trisaccharide synthesis and gram-scale reaction.
2-脱氧糖苷是多种天然存在的聚糖的重要成分,已知参与关键的生物途径。我们在此证明NFSI-TEMPO是一种有效的有机催化剂,用于从糖基生成2-脱氧-α-糖苷。首次观察到NFSI-TEMPO组合的催化行为。实验结果表明,该反应条件适合于以商品醇、氨基酸、甾醇、酚类和单糖衍生醇为原料制备糖苷。在糖基和糖基受体上广泛的保护基团以及不同反应活性的醇被发现可以相容地以中等到良好的产量生成2-脱氧-α-糖苷。通过在三糖合成和克级反应中的应用,说明了新建立的转化反应的合成潜力。
{"title":"NFSI-TEMPO Catalysed Stereoselective Synthesis of 2-Deoxyglycosides from Glycals","authors":"Vivek Kumar Sharma, Rima Thakur","doi":"10.1002/adsc.202401450","DOIUrl":"https://doi.org/10.1002/adsc.202401450","url":null,"abstract":"2-deoxyglycosides are prominent constituents of diverse naturally occurring glycans and are known to participate in crucial biological pathways. We herein demonstrate NFSI-TEMPO as an efficient organocatalyst for the formation of 2-deoxy-α-glycosides from glycals. For the first time a catalytic behaviour of NFSI-TEMPO combination has been observed. The reaction conditions have been found suitable for the generation of glycosides from commercial alcohols, amino acid, sterol, phenols and monosaccharide derived alcohols. Broad range of protecting groups on both glycal and glycosyl acceptors as well as alcohols of varied reactivity were found to be compatible for the generation of 2-deoxy-α-glycosides in moderate to good yields. The synthetic potential of the newly established transformation was illustrated by application in trisaccharide synthesis and gram-scale reaction.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"9 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regio- and Stereoselective β-C(sp3)‒H Activation/ Functionalization of Saturated Nitrogen Heterocycles, Amines and Amides 饱和氮杂环、胺和酰胺的区域和立体选择性β-C(sp3) - h活化/功能化
IF 5.4 2区 化学 Q2 CHEMISTRY, APPLIED Pub Date : 2025-01-20 DOI: 10.1002/adsc.202401398
Sanjay Yadav, Murugesh V, Surisetti Suresh
Regio- and stereoselective β-C(sp3)‒H bond functionalizations of saturated nitrogen heterocycles, amines/amides are challenging and have emerged as an important topic of research in the area of C(sp3)‒H activation. Herein, we have summarized various β-C(sp3)‒H activation/functionalization methods; this review provides an overview of various trending approaches for β-C(sp3)‒H bond activation/functionalization of saturated nitrogen heterocycles, amines/amides. The regio- and stereoselective β-C(sp3)‒H bond activation methods are classified based on the reaction pathways. The literature methods including directing group or ligand-assisted reactions, reactions proceeding through enamine intermediate, redox-neutral methods and other trending methods including photoredox and transitional metal-free methods are discussed with recent updates.
饱和氮杂环、胺/酰胺的区域和立体选择性β-C(sp3) - h键功能化具有挑战性,已成为C(sp3) - h活化领域的一个重要研究课题。在此,我们总结了各种β-C(sp3) -H活化/功能化方法;本文综述了饱和氮杂环、胺类/酰胺类β-C(sp3) -H键活化/功能化的各种研究趋势。根据反应途径分为区域选择性和立体选择性β-C(sp3) - h键激活方法。文献方法包括指导基团或配体辅助反应,通过烯胺中间体进行的反应,氧化还原中性方法以及其他趋势方法,包括光氧化还原和过渡金属无方法。
{"title":"Regio- and Stereoselective β-C(sp3)‒H Activation/ Functionalization of Saturated Nitrogen Heterocycles, Amines and Amides","authors":"Sanjay Yadav, Murugesh V, Surisetti Suresh","doi":"10.1002/adsc.202401398","DOIUrl":"https://doi.org/10.1002/adsc.202401398","url":null,"abstract":"Regio- and stereoselective β-C(sp3)‒H bond functionalizations of saturated nitrogen heterocycles, amines/amides are challenging and have emerged as an important topic of research in the area of C(sp3)‒H activation. Herein, we have summarized various β-C(sp3)‒H activation/functionalization methods; this review provides an overview of various trending approaches for β-C(sp3)‒H bond activation/functionalization of saturated nitrogen heterocycles, amines/amides. The regio- and stereoselective β-C(sp3)‒H bond activation methods are classified based on the reaction pathways. The literature methods including directing group or ligand-assisted reactions, reactions proceeding through enamine intermediate, redox-neutral methods and other trending methods including photoredox and transitional metal-free methods are discussed with recent updates.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"6 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Advanced Synthesis & Catalysis
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1