Abstract

A visible-light-mediated photoredox Giese reaction with α-branched 2-vinylpyridines and α-ketoacids is described. This reaction relies on the use of readily accessible and stable α-ketoacids to achieve the hydroacylation of α-branched 2-vinylpyridines, providing a mild and efficient method for the synthesis of pyridine derivatives. The reactions of various α-branched 2-vinylpyridines with α-ketoacids show the generality of this method.

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