A new synthesis of 3-substituted-1H-indenes through reaction of o-(β-magnesioalkyl)phenylmagnesium dihalides with carboxylate esters
作者:Robert W. Baker、Michael A. Foulkes、Michael Griggs、Bao N. Nguyen
DOI:10.1016/s0040-4039(02)02344-4
日期:2002.12
A new synthesis of 3-substituted-1H-indenes has been developed through the reaction of o-(β-magnesioalkyl)phenylmagnesium dihalides with carboxylate esters, followed by dehydration of the intermediate 1-substituted-1-indanols. Di-Grignard reagents allowing the synthesis of 3-substituted-, 2-methyl-3-substituted-, and 4-methyl-3-substituted-1H-indenes have been prepared, with overall yields for the
通过邻-(β-镁烷基烷基)苯基二卤化镁与羧酸酯的反应,然后使中间的1-取代-1-茚满醇脱水,开发了3-取代-1 H-茚的新合成方法。已经制备了允许合成3-取代的,2-甲基-3-取代的和4-甲基-3-取代的-1 H-茚的二格里纳试剂,两步序列的总产率为45至95%。