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Letters in Organic Chemistry

Author(s): Mauricio Gomes Constantino, Valdemar Lacerda Junior, Luiz Carlos da Silva Filho and Gil Valdo Jose da Silva

DOI: 10.2174/1570178043400514

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Niobium (V) Chloride Mediated Preparation of β-Chloro-α,β-Unsaturated Ketones

Page: [360 - 364] Pages: 5

  • * (Excluding Mailing and Handling)

Abstract

β-Chloro-α,β-unsaturated ketones or β-ethoxy-α,β-unsaturated ketones, depending on the solvent used, are conveniently prepared in one step and in good yields by treating cycloenones 1 - 10 with niobium pentachloride.

Keywords: niobium pentachloride, lewis acid, chloro-enones