Synthesis and Diels–Alder reactions of α-fluoro- and α-trifluoromethylacrylonitriles
摘要:
A novel synthetic method for the preparation of alpha-fluoro- and the still unknown alpha-trifluoromethylacrylonitriles is elaborated. The reaction of alpha-fluorovinylbromides and alpha-trifluoromethylvinylbromides with CuCN leads to the title compounds in good to high yields. While the alpha-fluoroacrylonitriles were isolated as mixture of Z/E-isomers, the alpha-trifluoromethylacrylonitriles were obtained as pure Z-isomers. The alpha-trifluoromethylacrylonitriles are shown to be excellent dienophiles for Diels-Alder reactions. (c) 2007 Elsevier B.V. All rights reserved.
Stereoselective synthesis of 1-bromo-1-fluorostyrenes
作者:Aleksey V. Shastin、Vasiliy M. Muzalevsky、Elizabeth S. Balenkova、Valentine G. Nenajdenko
DOI:10.1070/mc2006v016n03abeh002282
日期:2006.1
The effective and stereoselective one-pot synthesis of 1-bromo-1-fluorostyrenes from aromatic aldehydes based on a catalytic olefination reaction was elaborated.