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Synlett 1996; 1996(3): 273-274
DOI: 10.1055/s-1996-5392
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Oxidation of Hydrazones with Copper(II) Bromide - Lithium t-Butoxide. A Convenient Method for the Transformation of Ketones and Aldehydes to gem-Dibromides

Takeshi Takeda* , Rika Sasaki, Akira Nakamura, Satoshi Yamauchi, Tooru Fujiwara
  • *Department of Applied Chemistry, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184, Japan, Fax 81 423 88 7034; E-mail takeda-t@cc.tuat.ac.jp
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Publication Date:
31 December 2000 (online)

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The treatment of hydrazones with copper(II) bromide-lithium t-butoxide gave the corresponding gem-dibromides in good yields. The hydrazones were prepared by the treatment of ketones and aldehydes with hydrazine hydrate in the presence of molecular sieves 4A and used without any purification.

gem-dibromide - hydrazone - oxidation - copper(II) bromide - lithium t-butoxide