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Tandem [2 + 4] Annulation/Aromatization Reaction of Yne-Enones with o-Sulfonamidobenzaldehydes 炔烯酮与邻磺酰胺苯醛的串联[2 + 4]环化/芳构化反应
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-06 DOI: 10.1039/d5cc06758h
Zhiyang Cui, Honghao Sun, Jingrong Jin, Yi Tang, Bo Wang, Leijie Zhou, Bing Zheng, Li Zheng, Hongchao Guo
Yne-enones are valuable platform molecules that undergo diverse transformations under both metal-catalyzed and metal-free conditions. However, their participation in phosphine-catalyzed annulation reactions has remained relatively unexplored. Herein, a phosphine-catalyzed tandem [2 + 4] annulation/detosylative aromatization of yne-enones with o-sulfonamidobenzaldehydes is reported, affording polyfunctionalized quinolines in moderate to high yields with a broad substrate scope. A plausible reaction mechanism is proposed, highlighting the potential of yne-enones to serve as versatile synthons for the development of new annulation strategies under phosphine catalysis.
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引用次数: 0
CoO–NiO heterostructure nanosheets-enabled efficient electrooxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid co - nio异质结构纳米片使5-羟甲基糠醛高效电氧化为2,5-呋喃二羧酸
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-06 DOI: 10.1039/d5cc06733b
Liya Ma, Dongfang Ji, Wenmin Xie, Shanshan Li, Jingcheng Hao, Zhonghao Li
We present a CoO-NiO heterostructure nanosheet as an efficient electrocatalyst for the oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). The catalyst achieves 100% HMF conversion, 98.7% FDCA yield, and 98.5% Faradaic efficiency, with density functional theory (DFT) calculations revealing interfacial electron redistribution for enhanced performance.
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引用次数: 0
Sulfur-based mixed ylides: unlocking new reactivity paradigms in modern organic synthesis. 硫基混合酰基化合物:揭示现代有机合成中的新反应性范式。
IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-06 DOI: 10.1039/d6cc00025h
Daksh Singh Davas, Dinesh Kumar Gopalakrishnan, Janakiram Vaitla

Sulfur ylides, first reported by Ingold and Jessop in 1930, have long occupied a central position in organic synthesis owing to their ambiphilic character and diverse reactivity. In recent years, ylide chemistry has progressed beyond classical systems toward the development of mixed ylides, in which two distinct heteroatoms are incorporated within a single ylide framework. Among these, sulfur based mixed ylides have emerged as powerful and versatile intermediates. Their unique electronic structure enables polarity inversion at the α-carbon, allowing this position to exhibit both nucleophilic and electrophilic behavior and thereby granting access to a broad range of reactive intermediates, including carbenes, radicals, carbocations, and carbynes. The discovery of the first sulfur based mixed ylide in 2018 marked a significant milestone, opening new avenues for reactivity and selectivity. This Review summarizes recent advances in sulfur based mixed ylide chemistry, with particular emphasis on their mechanistic features, and applications in diverse organic transformations.

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引用次数: 0
Effective Hole and Electron Transport in Solution-Processable Nanoscale Films of a Deep-Green Dye exhibiting Room-Temperature Columnar Mesophases 具有室温柱状介相的深绿色染料溶液可加工纳米薄膜中的有效空穴和电子输运
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-06 DOI: 10.1039/d5cc07177a
Ritobrata De, Joydip De, Alvin Joseph, Santosh Prasad Gupta, Manoj A.G Namboothiry, Santanu Kumar Pal
To evolve liquid crystals towards efficient nano-electronics, we report oxadiazole-functionalized anthraquinones showing roomtemperature columnar rectangular mesophases. Exhibiting nearly temperature-independent ambipolarity with maximum hole and electron mobilities in order of 10 -4 cm 2 V -1 s -1 and 10 -3 cm 2 V -1 s -1 , repectively, it is a pioneering study on solution-processable charge-carrier mobilities of this class of deep-green dyes.
{"title":"Effective Hole and Electron Transport in Solution-Processable Nanoscale Films of a Deep-Green Dye exhibiting Room-Temperature Columnar Mesophases","authors":"Ritobrata De, Joydip De, Alvin Joseph, Santosh Prasad Gupta, Manoj A.G Namboothiry, Santanu Kumar Pal","doi":"10.1039/d5cc07177a","DOIUrl":"https://doi.org/10.1039/d5cc07177a","url":null,"abstract":"To evolve liquid crystals towards efficient nano-electronics, we report oxadiazole-functionalized anthraquinones showing roomtemperature columnar rectangular mesophases. Exhibiting nearly temperature-independent ambipolarity with maximum hole and electron mobilities in order of 10 -4 cm 2 V -1 s -1 and 10 -3 cm 2 V -1 s -1 , repectively, it is a pioneering study on solution-processable charge-carrier mobilities of this class of deep-green dyes.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"31 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129674","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
Regioselective electrochemical 7-endo-dig selenocyclization of N-benzyl propiolamides to access selenated benzo[c]azepinones. n -苄基丙酰胺7-内切硒环化反应制备硒化苯并氮卓酮[c]。
IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-06 DOI: 10.1039/d5cc06757j
Xian-Bing Luo, Xia-Die Wu, Lei Wang, Zhifang Li, Zhong-Wei Hou

An electrochemical approach for regioselective 7-endo-dig selenocyclization of N-benzyl propiolamides with diselenides has been developed. This methodology circumvents the need for metal reagents or oxidants, thereby exhibiting excellent functional group tolerance and substrate compatibility. A diverse array of selenated benzo[c]azepinones can be obtained with good to excellent regioselectivity and yields. Furthermore, gram-scale synthesis and subsequent transformations of the products can be readily achieved under straightforward experimental protocols.

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引用次数: 0
Fe-doped CuO embedded in carbon nanosheets for efficient and selective nitrate electroreduction to ammonia. 铁掺杂CuO包埋在碳纳米片上的高效选择性硝酸电还原制氨研究。
IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-05 DOI: 10.1039/d6cc00166a
Jinjie Lin, Nan Wu, Xianhong Wu, Run-Cang Sun

The nitrate electroreduction reaction (NO3-RR) provides a low-carbon and environmentally friendly strategy for ammonia production. Here, a sustainable method for synthesizing carbon nanosheets is developed by assembling biomass molecules on a boric acid template, followed by thermal annealing. During this process, the introduction of Fe3+ and Cu2+ ions enables the formation of Fe-doped CuO nanoparticles embedded in carbon nanosheets (Fe-CuO/C). The Fe-CuO/C shows high activity for the NO3-RR resulting in a low potential of 0.089 and -0.192 V vs. RHE at -10 and -50 mA cm-2, with high ammonia yield and faraday efficiency. Theoretical calculations indicate that the *NO to *NOH step is the rate-determining step during the NO3-RR. The doping of Fe effectively reduces the energy barrier of this step.

{"title":"Fe-doped CuO embedded in carbon nanosheets for efficient and selective nitrate electroreduction to ammonia.","authors":"Jinjie Lin, Nan Wu, Xianhong Wu, Run-Cang Sun","doi":"10.1039/d6cc00166a","DOIUrl":"https://doi.org/10.1039/d6cc00166a","url":null,"abstract":"<p><p>The nitrate electroreduction reaction (NO<sub>3</sub><sup>-</sup>RR) provides a low-carbon and environmentally friendly strategy for ammonia production. Here, a sustainable method for synthesizing carbon nanosheets is developed by assembling biomass molecules on a boric acid template, followed by thermal annealing. During this process, the introduction of Fe<sup>3+</sup> and Cu<sup>2+</sup> ions enables the formation of Fe-doped CuO nanoparticles embedded in carbon nanosheets (Fe-CuO/C). The Fe-CuO/C shows high activity for the NO<sub>3</sub><sup>-</sup>RR resulting in a low potential of 0.089 and -0.192 V <i>vs.</i> RHE at -10 and -50 mA cm<sup>-2</sup>, with high ammonia yield and faraday efficiency. Theoretical calculations indicate that the *NO to *NOH step is the rate-determining step during the NO<sub>3</sub><sup>-</sup>RR. The doping of Fe effectively reduces the energy barrier of this step.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146123075","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
4,5-Diazido-6-nitropyridazin-3(2H)-one: A Versatile Nitrogen-Rich Compound for Multifaceted Energetic Applications 4,5-二叠氮-6-硝基吡啶-3(2H)- 1:一种多功能富氮化合物,具有多方面的能量应用
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-05 DOI: 10.1039/d6cc00109b
Sonali Kukreja, Abhishek K Yadav, Srinivas Dharavath
A green, nitrogen-rich energetic compound, 4,5-diazido-6-nitropyridazin-3(2H)-one, was synthesized via a simple one-step route. Its high density, good detonation performance, acceptable thermal stability, moderate sensitivities, and compatibility with common oxidizers underscore its significance as a promising environmentally benign alternative for initiators, propellants, and advanced pyrotechnic applications.
通过简单的一步法合成了一种绿色的富氮含能化合物4,5-重氮杂氮-6-硝基吡啶-3(2H)- 1。它的高密度、良好的爆轰性能、可接受的热稳定性、适度的灵敏度以及与普通氧化剂的兼容性,突显了它作为一种有前途的环境友好型引发剂、推进剂和先进烟火应用的替代品的重要性。
{"title":"4,5-Diazido-6-nitropyridazin-3(2H)-one: A Versatile Nitrogen-Rich Compound for Multifaceted Energetic Applications","authors":"Sonali Kukreja, Abhishek K Yadav, Srinivas Dharavath","doi":"10.1039/d6cc00109b","DOIUrl":"https://doi.org/10.1039/d6cc00109b","url":null,"abstract":"A green, nitrogen-rich energetic compound, 4,5-diazido-6-nitropyridazin-3(2H)-one, was synthesized via a simple one-step route. Its high density, good detonation performance, acceptable thermal stability, moderate sensitivities, and compatibility with common oxidizers underscore its significance as a promising environmentally benign alternative for initiators, propellants, and advanced pyrotechnic applications.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"301 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116095","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
Palladium-catalysed imidoylative difunctionalization of allenes: access to quinolines and indeno[1,2-b]quinolines 钯催化的烯基酰化双功能化:喹啉和吲哚喹啉[1,2-b]的获取
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-05 DOI: 10.1039/d5cc07238g
Haixia Zhao, Kaijie Tang, Lingbao Gu, Yuchen Jiang, Yue Pu, Qingbing Yuan, Chen Chen, Jian Wang
A palladium-catalysed three-component imidoylative amination, etherification and alkylation of allenes for the construction of multisubstituted quinolines from 2-allenylaryl isocyanides, aryl iodides and nucleophiles has been developed. Amines, phenols, malononitriles and 3-F oxindoles acted as efficient nucleophiles to attack the allyl-palladium intermediate, affording diverse quinoline derivatives. Furthermore, a C-H bond alkylation reaction was disclosed when the reaction was carried out in absence of nucleophile, offering straightforward access to indeno[1,2-b]quinoline scaffold with two rings formation in one step. The annulation reaction features broad functional group tolerance and mild reaction conditions.
以2-烯丙基异氰酸酯、碘化芳基和亲核试剂为原料,钯催化丙烯三组分胺化、醚化和烷基化合成多取代喹啉。胺、酚、丙二腈和3-F吲哚作为有效的亲核试剂攻击烯丙基钯中间体,提供多种喹啉衍生物。此外,在不含亲核试剂的情况下,还发现了一个C-H键烷基化反应,这为一步生成两个环的茚[1,2-b]喹啉支架提供了直接的途径。环化反应具有官能团耐受性广、反应条件温和等特点。
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引用次数: 0
REV3(BO3)4 (RE = La‒Nd): A Series of Rare Earth Vanadoborates Exhibit Large Birefringence Induced by Distorted VⅢO6 Group REV3(BO3)4 (RE = La-Nd):一系列具有扭曲VⅢO6基团诱导的大双折射的稀土钒酸盐
IF 4.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-05 DOI: 10.1039/d6cc00362a
Yu-Long Wei, Wen-Dong Yao, Yi-Lei Lv, Liang Ma, Ru-Ling Tang
New Rare-earth (RE) vanadoborates REV3(BO3)4 were synthesized via hightemperature solidstate methods. They crystallize in a monoclinic system featuring a unique {[V3O14] 19-} chain. Magnetic studies reveal antiferromagnetic behavior, while LaV3(BO3)4 exhibits a record birefringence of 0.180@546 nm among RE borates. This work offers a new example for exploring multifunctional RE borate materials.
采用高温固相法合成了新型钒酸盐REV3(BO3)4。它们在具有唯一{[V3O14] 19-}∞链的单斜晶系中结晶。磁性研究揭示了反铁磁行为,而LaV3(BO3)4在RE硼酸盐中表现出创纪录的0.180@546 nm双折射。这项工作为探索多功能稀土硼酸盐材料提供了新的范例。
{"title":"REV3(BO3)4 (RE = La‒Nd): A Series of Rare Earth Vanadoborates Exhibit Large Birefringence Induced by Distorted VⅢO6 Group","authors":"Yu-Long Wei, Wen-Dong Yao, Yi-Lei Lv, Liang Ma, Ru-Ling Tang","doi":"10.1039/d6cc00362a","DOIUrl":"https://doi.org/10.1039/d6cc00362a","url":null,"abstract":"New Rare-earth (RE) vanadoborates REV<small><sub>3</sub></small>(BO<small><sub>3</sub></small>)<small><sub>4</sub></small> were synthesized via hightemperature solidstate methods. They crystallize in a monoclinic system featuring a unique {[V<small><sub>3</sub></small>O<small><sub>14</sub></small>] <small><sup>19-</sup></small>} <small><sub>∞</sub></small> chain. Magnetic studies reveal antiferromagnetic behavior, while LaV<small><sub>3</sub></small>(BO<small><sub>3</sub></small>)<small><sub>4</sub></small> exhibits a record birefringence of 0.180@546 nm among RE borates. This work offers a new example for exploring multifunctional RE borate materials.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"87 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116116","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
Reactivity of ketenyl anions towards ammonia. 烯基阴离子对氨的反应性。
IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Pub Date : 2026-02-05 DOI: 10.1039/d5cc06975k
Prakash Duari, Mike Jörges, Sunita Mondal, Kai-Stephan Feichtner, Viktoria H Gessner

Alkali metal ketenyls, [M(RCCO)], were found to exhibit diverging reactivities towards ammonia depending on the substitution pattern. Ketenyl anions with strong electron-withdrawing groups (R = CN or tosyl) react with NH3 to form β-ketoamides, while the phosphinoyl substituted systems (R = Ph2P(E), E = S, Se) activate all three N-H bonds, resulting in a trianionic triamide. This triamide exhibits a dimeric structure with the six potassium cations forming a unique planar triangular {K6}6+ cluster.

发现碱金属烯基[M(RCCO)]对氨的反应活性随取代模式的不同而不同。具有强吸电子基团的酮基阴离子(R = CN或tosyl)与NH3反应生成β-酮酰胺,而磷酰取代体系(R = Ph2P(E), E = S, Se)激活所有三个N-H键,生成三阴离子三酰胺。该三酰胺具有二聚体结构,6个钾离子形成独特的平面三角形{K6}6+簇。
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Chemical Communications
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