Sequential mono-N-arylation of piperazine nitrogens. Part 1: A simplified method and its application to the preparation of a key N,N′-biaryl piperazine antifungal intermediate
作者:Michael Hepperle、Jeffrey Eckert、Dinesh Gala
DOI:10.1016/s0040-4039(99)01103-x
日期:1999.7
A simple sequential N-arylation of piperazine without the use of a protecting group, catalyst, specialized equipment or a large excess of piperazine, and its application towards the preparation of the key differentially N,N′-biarylated piperazine antifungal intermediate N-(4-hydroxyphenyl)-N′-(4-aminophenyl)piperazine, 6, is described.
不使用保护基,催化剂,专用设备或大量过量的哌嗪的简单连续的哌嗪连续N-芳基化反应及其在制备关键的N,N'-二芳基化的哌嗪抗真菌中间体N-(4)的制备中的应用描述了-(羟基苯基)-N' -(4-氨基苯基)哌嗪6。