Synthesis of Imides, Imidates, Amidines, and Amides by Intercepting the Aryne–Isocyanide Adduct with Weak Nucleophiles
作者:Sourav Ghorai、Daesung Lee
DOI:10.1021/acs.orglett.9b02711
日期:2019.9.20
have been developed. Arynes generated from triynes or tetraynes through the hexadehydro Diels-Alder reaction readily react with isocyanide to generate nitrilium intermediate. Intercepting this nitrilium species with various weak nucleophile including carboxylic acids, alcohols, sulfonamides, or water generated the corresponding imides, imidates, amidines, or amides. The high regioselectivity of these
已经开发出新的基于芳烃的多组分偶联反应,用于形成官能化的芳族化合物。通过六氢Diels-Alder反应由三炔或四炔生成的芳烃容易与异氰化物反应生成腈中间体。用各种弱亲核试剂(包括羧酸,醇,磺酰胺或水)拦截该腈物种,生成相应的酰亚胺,酰亚胺基、,或酰胺。这些转化的高区域选择性主要由芳烃的取代基控制。