Chemoselective Acylation of Amines in Aqueous Media
作者:Sarala Naik、Gitalee Bhattacharjya、Bandana Talukdar、Bhisma K. Patel
DOI:10.1002/ejoc.200300620
日期:2004.3
Amines are efficiently acylated by both cyclic and acyclic anhydrides by dissolving them in an aqueous medium with the help of a surfactant, sodium dodecyl sulfate (SDS). Cyclic and acyclic anhydrides react with equal ease with an amine, and amines with various stereo-electronic factors react at the same rates with an anhydride. Chemoselectiveacylation of amines in the presence of phenols and thiols
N1,N3-Diacyl-3,4-dihydropyrimidin-2(1H)-ones: neutral acyl group transfer reagents
作者:Kamaljit Singh、Kawaljit Singh
DOI:10.1016/j.tet.2009.10.037
日期:2009.12
Readily available N1,N3-diacyl-3,4-dihydropyrimidin-2(1H)-ones efficiently acylateammonia, primary and secondary amines to furnish primary, secondary and tertiary amides in good to excellent yields. The wide applicability of the procedure is demonstrated by running the reactions in a neutral medium, easy isolation of products, recycling of the innocuous by-product and chemoselectivity of the transformation