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

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

VOLUME: 1 ISSUE: 4

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

Affiliation:Departamento de Quimica, Faculdade de Filosofia, Ciencias e Letras de Ribeirao Preto, Universidadede Sao Paulo, Av. Bandeirantes 3900, 14040-901 - Ribeirao Preto - SP, Brazil.

Keywords:niobium pentachloride, lewis acid, chloro-enones

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.

Cite this article as:

Mauricio Gomes Constantino, Valdemar Lacerda Junior, Luiz Carlos da Silva Filho and Gil Valdo Jose da Silva, “ Niobium (V) Chloride Mediated Preparation of β-Chloro-α,β-Unsaturated Ketones”, Letters in Organic Chemistry (2004) 1: 360. https://doi.org/10.2174/1570178043400514

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