Synthesis 2006(17): 2865-2872  
DOI: 10.1055/s-2006-942536
PAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 4-Alkyl- and 4-(ω-Chloroalkyl)-3-hydroxy-5-alkylidenebuten­olides Based On Cyclizations of 4-Alkyl- and 4-(ω-Chloroalkyl)-1,3-bis(tri­methylsilyloxy)buta-1,3-dienes with Oxalyl Chloride

Van Thi Hong Nguyena, Esen Bellura, Bettina Appela, Peter Langer*b,c
a Institut für Biochemie, Universität Greifswald, Soldmannstr. 16, 17487 Greifswald, Germany
b Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
Fax: +49(381)4986412; e-Mail: peter.langer@uni-rostock.de;
c Leibniz Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany
Further Information

Publication History

Received 10 March 2006
Publication Date:
02 August 2006 (online)

Abstract

4-Alkyl- and 4-(ω-chloroalkyl)-1,3-bis(trimethylsilyl­oxy)buta-1,3-dienes were prepared from ethyl acetoacetate in three steps. Their cyclization with oxalyl chloride allowed an efficient synthesis of 4-alkyl- and 4-(ω-chloroalkyl)-5-alkylidenebuten­olides.