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Please login or sign up for a free trial to access the full content. Vilsmeier Reactions

DOI: 10.1055/sos-SD-213-00191

Zhang, N.; Dong, D.Science of Synthesis: C-1 Building Blocks in Organic Synthesis, (20142337.

The Vilsmeier–Haack reaction (also known as just the Vilsmeier reaction) is the reaction of a substituted amide, phosphoryl chloride, and an electron-rich aromatic compound to produce an aromatic aldehyde or ketone. The reaction was first discovered by Vilsmeier and Haack in 1927,[‌12‌] and was further developed by Arnold and co-workers.[‌13‌] The Vilsmeier reaction was initially utilized for the introduction of a formyl group in activated arenes. Subsequent investigations have demonstrated the versatility of the reaction, as it can be efficiently utilized in a variety of processes, such as chlorinations, chloroformylations, aromatizations, and cyclizations.

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