作者:Vito A. Fiore、Gerhard Maas
DOI:10.1016/j.tet.2019.05.027
日期:2019.6
alkynes, with triflic anhydride (Tf2O) and b) from terminal alkynes and an aryl or alkyl isocyanate followed by Tf2O in a consecutive one-pot reaction. The title compounds are bench-stable and insensitive to water and alcohols but amenable to transamidation reactions with a wide range of amine nucleophiles. Conversely, they are excellent reagents for the propynoylation of ammonia, primary and secondary
N-三氟甲基磺酰基丙酰胺化物已通过以下两种方法制备:a)分两步从末端炔烃制得的次要炔羧酸苯胺与三氟甲磺酸酐(Tf 2 O)和b)来自末端炔烃和芳基或异氰酸烷基酯的N-三氟甲基化。接着TF 2 Ó以连续的一锅反应。标题化合物是板凳稳定的,对水和醇不敏感,但可与多种胺亲核试剂进行氨基转移反应。相反,它们是氨,伯胺和仲胺,苯胺和肼的丙炔化的极好试剂。