Convenient Method for the Preparation of Carbamates, Carbonates, and Thiocarbonates
作者:Mamoru Shimizu、Mikiko Sodeoka
DOI:10.1021/ol7024108
日期:2007.12.1
A convenient, rapid, and efficient method for the preparation of carbamatesfromamines with 1-alkoxycarbonyl-3-nitro-1,2,4-triazole transfer reagents is reported. Reactions of newly synthesized stable crystalline reagents with alkyl amines were completed in a few minutes without any additional base, and highly pure carbamates were obtained without chromatographic purification. These highly active