Synthesis of quinolines from 3-formylchromone.

Andrey S Plaskon, Sergey V Ryabukhin, Dmitriy M Volochnyuk, Konstantin S Gavrilenko, Alexander N Shivanyuk, Andrey A Tolmachev

Index: J. Org. Chem. 73(15) , 6010-3, (2008)

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Abstract

A facile and versatile procedure for the synthesis of 3-(2-hydroxybenzoyl)quinolines and 7H-chromeno[3,2-c]quinolin-7-ones was elaborated on the basis of TMSCl-mediated recyclization of 3-formylchromone with various anilines. Limitations and scope of this methodology were established, and a possible mechanism for the heterocyclizations was proposed.