Pub Date : 2020-06-18DOI: 10.2174/2213346107999200616105745
M. Gulea, Morgan Donnard
This review highlights the achievements in the synthesis of organic thiocyanates (OTCs) over the past five years (late 2015 to mid-2019) and is intended as a follow-up on our tutorial review published in Chemical Society Reviews in 2016. The discussion places a special emphasis on sustainable synthetic approaches involving thiocyanation or sulfur-cyanation. The large number of contributions within this short period of time clearly indicates that the chemistry of OTCs provides a growing interest and a rapid evolution.
{"title":"Sustainable Synthetic Approaches Involving Thiocyanation and Sulfur- Cyanation: An Update","authors":"M. Gulea, Morgan Donnard","doi":"10.2174/2213346107999200616105745","DOIUrl":"https://doi.org/10.2174/2213346107999200616105745","url":null,"abstract":"\u0000\u0000This review highlights the achievements in the synthesis of organic thiocyanates (OTCs)\u0000over the past five years (late 2015 to mid-2019) and is intended as a follow-up on our tutorial review\u0000published in Chemical Society Reviews in 2016. The discussion places a special emphasis on sustainable\u0000synthetic approaches involving thiocyanation or sulfur-cyanation. The large number of contributions\u0000within this short period of time clearly indicates that the chemistry of OTCs provides a growing\u0000interest and a rapid evolution.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47395894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-15DOI: 10.2174/221334610701200403100438
B. Banerjee
{"title":"Organic Transformations by Following Green Credentials- Part 1 (B)","authors":"B. Banerjee","doi":"10.2174/221334610701200403100438","DOIUrl":"https://doi.org/10.2174/221334610701200403100438","url":null,"abstract":"<jats:sec>\u0000<jats:title />\u0000<jats:p />\u0000</jats:sec>","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/221334610701200403100438","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49635732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-31DOI: 10.2174/2213346107666200228125715
A. Singh, G. Kaur, A. Kaur, V. Gupta, B. Banerjee
A simple, facile, straightforward and environmentally benign protocol has been developed for the efficient synthesis of pharmaceutically interesting 3,3-bis(indol-3-yl)indolin-2-ones, bis(indol- 3-yl)(aryl)methanes and tris(indol-3-yl)methanes using a catalytic amount of mandelic acid as an efficient, naturally occurring, low-cost, commercially available organo-catalyst in aqueous ethanol at room temperature.
{"title":"A General Method for the Synthesis of 3,3-bis(indol-3-yl)indolin-2-ones, bis(indol-3-yl)(aryl)methanes and tris(indol-3-yl)methanes Using Naturally Occurring Mandelic Acid as an Efficient Organo-catalyst in Aqueous Ethanol at Room Temperature","authors":"A. Singh, G. Kaur, A. Kaur, V. Gupta, B. Banerjee","doi":"10.2174/2213346107666200228125715","DOIUrl":"https://doi.org/10.2174/2213346107666200228125715","url":null,"abstract":"A simple, facile, straightforward and environmentally benign protocol has been developed for the efficient synthesis of pharmaceutically interesting 3,3-bis(indol-3-yl)indolin-2-ones, bis(indol- 3-yl)(aryl)methanes and tris(indol-3-yl)methanes using a catalytic amount of mandelic acid as an efficient, naturally occurring, low-cost, commercially available organo-catalyst in aqueous ethanol at room temperature.","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49027047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-31DOI: 10.2174/2213346107666200204125435
Kinkar Biswas, S. Ghosh, B. Basu
Heterogeneous catalysis represents one of the important areas in the field of organic synthesis. Major developments have been emerged during last few decades and polymer-supported catalysts have been employed successfully in various catalytic organic transformations. Ion-exchange resins and polypeptides are two important examples of such heterogeneous polymer-supported catalysts among others because of their easy accessibility, stability, recoverability and reusability. Cross-linked ion-exchange resins and polypeptides are highly insoluble, which make them better choice in terms of their easy separation from the reaction mixture and subsequent recyclability. The present review article provides an overview of different types of ion exchange resins as polymer-supported catalysts such as amberlite resin, polystyrene resin, polyionic gel-based systems, ion-exchange resins and prolineimmobilized species, PEG-bound poly (amino acid), amino acid anchored with Merrifild resin, amphiphilic block polypeptides etc. Their preparation, characterizations and catalytic applications in diverse organic transformations have been presented with critical analysis on their stability, mechanistic overview and suitability etc.
{"title":"Ion-exchange Resins and Polypeptide Supported Catalysts: A Critical Review","authors":"Kinkar Biswas, S. Ghosh, B. Basu","doi":"10.2174/2213346107666200204125435","DOIUrl":"https://doi.org/10.2174/2213346107666200204125435","url":null,"abstract":"Heterogeneous catalysis represents one of the important areas in the field of organic synthesis.\u0000Major developments have been emerged during last few decades and polymer-supported catalysts\u0000have been employed successfully in various catalytic organic transformations. Ion-exchange resins\u0000and polypeptides are two important examples of such heterogeneous polymer-supported catalysts\u0000among others because of their easy accessibility, stability, recoverability and reusability. Cross-linked\u0000ion-exchange resins and polypeptides are highly insoluble, which make them better choice in terms of\u0000their easy separation from the reaction mixture and subsequent recyclability. The present review article\u0000provides an overview of different types of ion exchange resins as polymer-supported catalysts such\u0000as amberlite resin, polystyrene resin, polyionic gel-based systems, ion-exchange resins and prolineimmobilized\u0000species, PEG-bound poly (amino acid), amino acid anchored with Merrifild resin, amphiphilic\u0000block polypeptides etc. Their preparation, characterizations and catalytic applications in diverse\u0000organic transformations have been presented with critical analysis on their stability, mechanistic\u0000overview and suitability etc.","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/2213346107666200204125435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41446903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-31DOI: 10.2174/2213346106666191105144019
Aniruddha Das, Soumen Sarkar, Baitan Chakraborty, A. Kar, U. Jana
The construction of carbon-carbon bond through the metathesis reactions between carbonyls and olefins or alkynes has attracted significant interest in organic chemistry due to its high atomeconomy and efficiency. In this regard, carbonyl–alkyne metathesis is well developed and widely used in organic synthesis for the atom-efficient construction of various carbocycles and heterocycles in the presence of catalytic Lewis acids or Brønsted acids. On the other hand, alkene-carbonyl metathesis is recently developed and has been a topic of great importance in the field of organic chemistry because they possess attractive qualities involving metal-mediated, metal-free intramolecular, photochemical, Lewis acid-mediated ring-closing metathesis, ring-opening metathesis and cross-metathesis. This review covers most of the strategies of carbonyl–alkyne and carbonyl–olefin metathesis reactions in the synthesis of complex molecules, natural products and pharmaceuticals as well as provides an overview of exploration of the metathesis reactions with high atom-economy as well as environmentally and ecologically benign reaction conditions.
{"title":"Catalytic Alkyne/Alkene-Carbonyl Metathesis: Towards the Development of Green Organic Synthesis","authors":"Aniruddha Das, Soumen Sarkar, Baitan Chakraborty, A. Kar, U. Jana","doi":"10.2174/2213346106666191105144019","DOIUrl":"https://doi.org/10.2174/2213346106666191105144019","url":null,"abstract":"\u0000\u0000The construction of carbon-carbon bond through the metathesis reactions between carbonyls\u0000and olefins or alkynes has attracted significant interest in organic chemistry due to its high atomeconomy\u0000and efficiency. In this regard, carbonyl–alkyne metathesis is well developed and widely used\u0000in organic synthesis for the atom-efficient construction of various carbocycles and heterocycles in the\u0000presence of catalytic Lewis acids or Brønsted acids. On the other hand, alkene-carbonyl metathesis is\u0000recently developed and has been a topic of great importance in the field of organic chemistry because\u0000they possess attractive qualities involving metal-mediated, metal-free intramolecular, photochemical,\u0000Lewis acid-mediated ring-closing metathesis, ring-opening metathesis and cross-metathesis. This review\u0000covers most of the strategies of carbonyl–alkyne and carbonyl–olefin metathesis reactions in the\u0000synthesis of complex molecules, natural products and pharmaceuticals as well as provides an overview\u0000of exploration of the metathesis reactions with high atom-economy as well as environmentally and\u0000ecologically benign reaction conditions.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/2213346106666191105144019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45754519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-18DOI: 10.2174/221334610603191120112121
M. L. Di Gioia
{"title":"Meet Our Editorial Board Member","authors":"M. L. Di Gioia","doi":"10.2174/221334610603191120112121","DOIUrl":"https://doi.org/10.2174/221334610603191120112121","url":null,"abstract":"","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46267697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-25DOI: 10.2174/2213346106666190916105514
Anxhela Akolli, S. Moretti, Francesca Mangiavacchi, Bonifacio Monti, C. Santi
A convenient and cost-effective method for selective deuteration of rutin using biologically compatible bases and D2O both as a deuterium source and a solvent is herein reported. The protocol is benign and inexpensive affording good results in very mild conditions allowing to reduce the required amount of deuterium oxide. The position of the C-H/C-D exchange and the level of deuteration can be conveniently followed by 1H-NMR.
{"title":"Mild and Green Protocol for Selective Deuteration of Quercetin-3-ORutinoside (Rutin) Under Aqueous Basic Conditions","authors":"Anxhela Akolli, S. Moretti, Francesca Mangiavacchi, Bonifacio Monti, C. Santi","doi":"10.2174/2213346106666190916105514","DOIUrl":"https://doi.org/10.2174/2213346106666190916105514","url":null,"abstract":"\u0000\u0000A convenient and cost-effective method for selective deuteration of rutin using biologically\u0000compatible bases and D2O both as a deuterium source and a solvent is herein reported. The protocol is\u0000benign and inexpensive affording good results in very mild conditions allowing to reduce the required\u0000amount of deuterium oxide. The position of the C-H/C-D exchange and the level of deuteration can be\u0000conveniently followed by 1H-NMR.\u0000","PeriodicalId":10856,"journal":{"name":"Current Green Chemistry","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2019-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2174/2213346106666190916105514","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48747705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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