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Facile catalyst-free synthesis of 2-vinylquinolines via a direct deamination reaction occurring during Mannich synthesis?

RSC Advances Pub Date: 2015-11-13 DOI: 10.1039/C5RA21304E

Abstract

A facile catalyst-free method for the synthesis of 2-vinylquinolines via a direct deamination reaction during Mannich synthesis has been developed. Instantaneous hydrogen transfer via a six-membered ring intermediate is proposed as a key step for the direct deamination reaction. This reaction strategy tolerates a broad substrate scope and provides a highly efficient way to synthesize 2-vinylquinolines with adequate yields.

Graphical abstract: Facile catalyst-free synthesis of 2-vinylquinolines via a direct deamination reaction occurring during Mannich synthesis

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