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Synlett 1994; 1994(8): 651-652
DOI: 10.1055/s-1994-22962
DOI: 10.1055/s-1994-22962
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© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved.
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or duplication of any kind, translating, preparation of microfilms, and electronic
data processing and storage.A New and Selective α′-Bromination of α,β-Unsaturated Ketones
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Publication History
Publication Date:
18 September 2002 (online)
α′-Bromination of α,β-unsaturated ketones was carried out via trialkylsilyl dienol ethers with phenyltrimethylammonium tribromide. This reagent, which has not been previously used to brominate such derivatives, allows a high degree of selectivity under mild reaction conditions with the further advantage of not requiring the isolation of the silyl intermediates. The bromination selectivity is dependent on the trialkylsilyl group present on the dienol ether.