A New Method for the Preparation of 2-Methyl-1-(2-oxoalkyl)-1,2,3,4-tetrahydroisoquinolines
作者:Kuniko Hashigaki、Shigetaka Ishikawa、Weidong Wan、Masatoshi Yamato
DOI:10.1055/s-1988-27786
日期:——
1-Ethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline (3a) has been prepared by the reaction of 2-methyl-3,4-dihydroisoquinolinium bromide (7a) with sodium ethoxide. A convenient method for the preparation of 2-methyl-1-(2-oxoalkyl)-1,2,3,4-tetrahydroisoquinolines 2 has been developed by utilizing the nucleophilic reaction of active methylene compounds with 3a.
通过 2-甲基-3,4-二氢异喹啉溴化物(7a)与乙醇钠的反应,制备了 1-乙氧基-2-甲基-1,2,3,4-四氢异喹啉(3a)。利用活性亚甲基化合物与 3a 的亲核反应,开发出一种制备 2-甲基-1-(2-氧代烷基)-1,2,3,4-四氢异喹啉 2 的简便方法。