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 carbamates from amines 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
报道了一种用1-烷氧基羰基-3-硝基-1,2,4-三唑转移试剂从胺制备氨基甲酸酯的方便,快速,有效的方法。新合成的稳定结晶试剂与烷基胺的反应在几分钟内完成,无需任何其他碱,并且无需色谱纯化即可获得高纯度的氨基甲酸酯。这些高活性试剂还可用于核碱基的选择性保护以及碳酸盐和硫代碳酸盐的制备。