Synthesis 2005(4): 605-609  
DOI: 10.1055/s-2004-837303
PAPER
© Georg Thieme Verlag Stuttgart · New York

A New Synthetic Approach to α-Chlorocinnamaldehydes

Valentine G. Nenajdenko*a, Alexander L. Reznichenkoa, Olesya N. Lenkovaa, Alexey V. Shastinb, Elizabeth S. Balenkovaa
a Moscow State University, Department of Chemistry, Leninskie Gory, Moscow 119992, Russia
b Institute of Problems of Chemical Physics, Chernogolovka, Moscow region, 142432, Russia
Fax: +7(095)9328846; e-Mail: nen@acylium.chem.msu.ru ;
Further Information

Publication History

Received 20 October 2004
Publication Date:
22 December 2004 (online)

Abstract

A new simple and efficient transformation of aromatic aldehydes into α-chlorocinnamaldehydes is described. Catalytic olefination reaction of hydrazones of aromatic aldehydes with 2-trichloromethyl-1,3-dioxolane gives ethylene acetals of target alkenes in moderate to good yields. The reaction proceeds stereoselectively to form preferably Z-isomers.