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Vilsmeier reagents: Preparation of β-halo-α,β-unsaturated ketones

✍ Scribed by Richard E. Mewshaw

Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
202 KB
Volume
30
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new method for the preparation of /Schloro and j3-bromo-a$unsaturated ketones from pdiketones is described. Utilizing Vilsmeier reagents (preparedfrom N, N-dimethylformamide and oxalyl chloride or oxalyl bromide} /3-halo-a&nsaturated ketones are isolated in excellent yields.

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