Directed metallation studies on 2-(2-heteroaryl)imidazolines: Synthesis of some 2,3-disubstituted thiophenes and furans
作者:Derek J. Chadwick、David S. Ennis
DOI:10.1016/s0040-4020(01)80726-2
日期:1991.12
A general method for the synthesis of 2-(2-heteroaryl)imidazolines (1a-c) has been developed and subsequent metallation studies have shown the imidazoline group to be a strong director of -metallation. The synthetic utility of lithio intermediates (5) and (7) has been shown by reaction with a series of electrophiles.
已经开发了合成2-(2-杂芳基)咪唑啉(1a-c)的通用方法,随后的金属化研究表明,咪唑啉基团是-金属化的强有力的指导者。硫代中间体(5)和(7)的合成用途已经通过与一系列亲电试剂反应而显示。