Omkar C. Dongare , Pradeep U. Yadav , Yatin U. Gadkari
{"title":"盐酸胍:水生环境下多组分合成苯二氮卓类化合物的绿色有机催化剂","authors":"Omkar C. Dongare , Pradeep U. Yadav , Yatin U. Gadkari","doi":"10.1080/00397911.2025.2457439","DOIUrl":null,"url":null,"abstract":"<div><div>An efficient and environmentally friendly methodology has been developed for the synthesis of 1,5-benzodiazepine derivatives, employing catalytic amounts of guanidine hydrochloride in aqueous conditions. The desired compounds were obtained with high yields by combining variously substituted aryl aldehydes with o-phenylene diamine and dimedone. The protocol offers several advantages, including a rapid reaction time, the use of greener solvents, simple workup procedures, and an uncomplicated purification process, ensuring energy efficiency and versatility. Also, the catalyst can be recycled up to 4-5 cycles without compromising the overall yield, adding to the overall merit of this method. Furthermore, green chemistry metrics such as EcoScale, E-Factor, and Process Mass Intensity (PMI) were employed to evaluate the environmental impact of the process thoroughly.</div></div>","PeriodicalId":22119,"journal":{"name":"Synthetic Communications","volume":"55 5","pages":"Pages 394-404"},"PeriodicalIF":1.8000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Guanidine HCl: a green organo-catalyst for effective multicomponent synthesis of benzodiazepine derivatives under aquatic environment\",\"authors\":\"Omkar C. Dongare , Pradeep U. Yadav , Yatin U. Gadkari\",\"doi\":\"10.1080/00397911.2025.2457439\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>An efficient and environmentally friendly methodology has been developed for the synthesis of 1,5-benzodiazepine derivatives, employing catalytic amounts of guanidine hydrochloride in aqueous conditions. The desired compounds were obtained with high yields by combining variously substituted aryl aldehydes with o-phenylene diamine and dimedone. The protocol offers several advantages, including a rapid reaction time, the use of greener solvents, simple workup procedures, and an uncomplicated purification process, ensuring energy efficiency and versatility. Also, the catalyst can be recycled up to 4-5 cycles without compromising the overall yield, adding to the overall merit of this method. Furthermore, green chemistry metrics such as EcoScale, E-Factor, and Process Mass Intensity (PMI) were employed to evaluate the environmental impact of the process thoroughly.</div></div>\",\"PeriodicalId\":22119,\"journal\":{\"name\":\"Synthetic Communications\",\"volume\":\"55 5\",\"pages\":\"Pages 394-404\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Synthetic Communications\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/org/science/article/pii/S0039791125000141\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synthetic Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S0039791125000141","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Guanidine HCl: a green organo-catalyst for effective multicomponent synthesis of benzodiazepine derivatives under aquatic environment
An efficient and environmentally friendly methodology has been developed for the synthesis of 1,5-benzodiazepine derivatives, employing catalytic amounts of guanidine hydrochloride in aqueous conditions. The desired compounds were obtained with high yields by combining variously substituted aryl aldehydes with o-phenylene diamine and dimedone. The protocol offers several advantages, including a rapid reaction time, the use of greener solvents, simple workup procedures, and an uncomplicated purification process, ensuring energy efficiency and versatility. Also, the catalyst can be recycled up to 4-5 cycles without compromising the overall yield, adding to the overall merit of this method. Furthermore, green chemistry metrics such as EcoScale, E-Factor, and Process Mass Intensity (PMI) were employed to evaluate the environmental impact of the process thoroughly.
期刊介绍:
Synthetic Communications presents communications describing new methods, reagents, and other synthetic work pertaining to organic chemistry with sufficient experimental detail to permit reported reactions to be repeated by a chemist reasonably skilled in the art. In addition, the Journal features short, focused review articles discussing topics within its remit of synthetic organic chemistry.