An Easy and Efficient One-Step Procedure for the Preparation of Alkyl and Aryl Alkylcarbamates from<i>S</i>-Methyl<i>N</i>-Alkylthiocarbamates
作者:Rita Fochi、Iacopo Degani、Claudio Magistris
DOI:10.1055/s-2008-1067233
日期:2008.9
:: A general, one-step procedure for the synthesis of alkyl and aryl alkylcarbamates, by the direct reaction of S-methyl N-alkylthiocarbamates with alcohols or phenols in toluene at reflux in the presence of triethylamine, is reported. All the target products were obtained in high yield (15 examples, average yield 94%) and very high purity (>99.2%). The recovery of a co-product of industrial interest
* 报道了一种合成烷基和芳基烷基氨基甲酸酯的一般一步程序,即在三乙胺存在下,在甲苯中回流下,S-甲基N-烷基硫代氨基甲酸酯与醇或酚类直接反应。所有目标产物均以高收率(15例,平均收率94%)和极高纯度(>99.2%)获得。还应注意回收工业上感兴趣的副产物甲硫醇,每摩尔硫代氨基甲酸酯的量为一摩尔,并充分利用试剂。