A Novel and Chemoselective Process of<i>N</i>-Alkylation of Aromatic Nitrogen Compounds Using Quaternary Ammonium Salts as Starting Material
作者:Carlos A. González-González、Juan Javier Mejía Vega、Ricardo García Monroy、Davir González-Calderón、David Corona-Becerril、Aydeé Fuentes-Benítes、Joaquín Tamariz Mascarúa、Carlos González-Romero
DOI:10.1155/2017/4586463
日期:——
The process of N-alkylation of several pyrroles, indoles, and derivative heterocycles is herein described, using quaternary ammonium salts as the source of an alkylating agent. These reactions were carried out on several heterocyclic rings with triethylbenzylammonium chloride or tetradecyltrimethylammonium bromide and an NaOH solution at 50%, leading to a chemoselective N-alkylated product and an average
本文描述了几种吡咯、吲哚和衍生杂环的 N-烷基化方法,使用季铵盐作为烷基化剂的来源。这些反应是在几个杂环上用三乙基苄基氯化铵或十四烷基三甲基溴化铵和 50% 的 NaOH 溶液进行的,产生化学选择性的 N-烷基化产物,平均产率为 73%。这是传统的 N-杂环苄基化和甲基化的替代方法,直接处理烷基卤。