Synthesis 2004(11): 1750-1754  
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

Mustafa Ceylan*a, M. Burcu Gürderea, Yakup Budaka, Cavit Kazazb, Hasan Seçenb
a Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpasa University, 60250 Tokat, Turkey
Fax: +90(356)2521585; e-Mail: mceylan@gop.edu.tr;
b Department of Chemistry, Faculty of Arts and Sciences, Atatürk University, 25250 Erzurum, Turkey
Further Information

Publication History

Received 5 April 2004
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.