Thiamine hydrochloride as a recyclable organocatalyst for the efficient and chemoselective <i>N</i>-<i>tert</i>-butyloxycarbonylation of amines
作者:Ajit P. Ingale、Dnyaneshwar N. Garad、Dattatraya Ukale、Nitin M. Thorat、Sandeep V. Shinde
DOI:10.1080/00397911.2021.1994998
日期:2021.12.17
approach has been described for the chemoselective N-tert-butyloxycarbonylation of amines under solvent-free conditions at ambient temperature. The demonstrated approach has been applicable for the N-Boc protection of variety of aliphatic, aryl, heteroaryl amines. The chemoselective protection of amino group occurs in chiral amines and amino alcohol without racemization in high yield. Thiamin hydrochloride
摘要 盐酸硫胺素促进高效和生态友好的方法已被描述的用于化学选择性Ñ -叔在环境温度下在无溶剂条件下与胺的-butyloxycarbonylation。所证明的方法已适用于各种脂肪族、芳基、杂芳基胺的N- Boc 保护。氨基的化学选择性保护发生在手性胺和氨基醇中,没有高产率的外消旋化。盐酸硫胺素稳定、经济、易处理、环保。