Base-Promoted Coupling of Carbon Dioxide, Amines, and<i>N</i>-Tosylhydrazones: A Novel and Versatile Approach to Carbamates
作者:Wenfang Xiong、Chaorong Qi、Haitao He、Lu Ouyang、Min Zhang、Huanfeng Jiang
DOI:10.1002/anie.201410605
日期:2015.3.2
A base‐promoted three‐component coupling of carbon dioxide, amines, and N‐tosylhydrazones has been developed. The reaction is suggested to proceed via a carbocation intermediate and constitutes an efficient and versatile approach for the synthesis of a wide range of organic carbamates. The advantages of this method include the use of readily available substrates, excellent functional group tolerance
已开发出碱促进的二氧化碳,胺和N-甲苯磺酰hydr的三组分偶联剂。建议该反应通过碳正离子中间体进行,并且构成用于合成多种有机氨基甲酸酯的有效且通用的方法。该方法的优点包括使用易于获得的底物,出色的官能团耐受性,广泛的底物范围以及简便的后处理程序。