The Homer-Wadsworth-Emmons (HWE) olefination of methyl]-4,5-bis(methox
ycarbonyl)-1H-1,2,3-triazole and thoxyphosphoryl)methyl]-5-phenyl-1H-1
,2,3-triazole by means of aldehydes was found to be a convenient metho
d for the preparation of functionalized 1-alkenyl-1H-1,2,3-triazoles i
n moderate to good yields and low Z/E stereoselectivity. (C) 1998 Else
vier Science Ltd. All rights reserved.