The subject invention provides an expedited synthesis of 5, 6, and 7-iodoindenes from the corresponding aminoindan-1-ones in more than 70% yield, employing readily available precursors and reagents. A three-step sequence involves diazotization-iodination of aminoindan-1-one followed by reduction and dehydration. The method has a general character and can be extended for the preparation of various 4-, 5-, 6- or 7-haloindenes using different halogen sources for diazotization-halogenation reaction.
该发明提供了一种从相应的
氨基
茚-1-
酮中合成5、6和7-
碘茚的快速合成方法,收率超过70%,利用易得的前体和试剂。三步序列包括
氨基
茚-1-
酮的重
氮化-
碘化,随后进行还原和
脱水。该方法具有一般性质,可以通过使用不同卤素源进行重
氮化-卤代反应来扩展,用于制备各种4、5、6或7-卤代
茚。