Lipase-catalyzed one-pot four-component reaction in water: green construction of substituted 2,3-dihydrothiophenes
作者:Yong Tang、Kaifu Zhang、Yuelin Xu、Jinglin Ma、Hanqing Xie、Hongquan Zhang、Yanmin Jiang、Rui Zhao、Lei Wang
DOI:10.1039/d3nj03722c
日期:——
A green and efficient method for the construction of functionalized 2,3-dihydrothiophene derivatives in water was reported.
报告了一种在水中构建功能化 2,3- 二氢噻吩衍生物的绿色高效方法。
An efficient synthesis of dihydrothiophene ureidoformamides by domino reactions of 1,3-thiazolidinedione under catalyst-free conditions
作者:Guo-ping Lu、Li-Yan Zeng、Chun Cai
DOI:10.1039/c0gc00884b
日期:——
An efficient synthesis of dihydrothiophene ureidoformamides by the domino reactions of aldehydes, malononitrile, amines and 1,3-thiazolidinedione in PEG 400/H2O is studied. The reaction is free of catalysts and toxic solvents, of shorter reaction time and with ease of the product isolation, making it more environmentally friendly and suitable for large-scale operations.