Addition reactions of immonium benzotriazolates to acetylenic esters
作者:Alan R. Katritzky、Clara N. Fali、Daniela C. Oniciu
DOI:10.1016/0040-4020(94)00998-a
日期:1995.1
1-Dialkylaminomethylbenzotriazoles react with ethyl propiolate and dimethyl acetylenedicarboxylate by addition of the benzotriazole anion followed by the immonium cation. The benzotriazolyl group in the products undergoes facile nucleophilic displacement.