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Synthesis 2004(11): 1750-1754
DOI: 10.1055/s-2004-829118
DOI: 10.1055/s-2004-829118
PAPER
© Georg Thieme Verlag Stuttgart · New York
One-Step Preparation of Symmetrical 1,4-Diketones from α-Halo Ketones in the Presence of Zn-I2 as a Condensation Agent
Further Information
Received
5 April 2004
Publication Date:
01 July 2004 (online)
Publication History
Publication Date:
01 July 2004 (online)
Abstract
Eleven 1,4-diphenylbutane-1,4-diones have been prepared in one step from the corresponding α-halo acetophenones under the action of Zn-I2 as a condensation agent with moderate to high yields. The mechanistic pathway of the reaction can be explained by the Wurtz-like self-condensation of α-halo ketones. Similarly, 3-chloropentane-2,4-dione gave 3,4-diacetylhexane-2,5-dione, a Wurtz-like condensation product.
Key words
1,4-Diketones - α-bromoketones - zinc
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