The stereochemistry of ring-opening of 3-alkyl-1,1-dihalocyclopropenes to vinylcarbenes at ambient temperature
作者:Juma'a R. Al Dulayymi、Mark S. Baird、Helen L. Fitton
DOI:10.1016/s0040-4039(00)61290-x
日期:1992.8
Reaction of 3-alkyl-1,2-dibromocyclopropenes with electron-rich or electron-poor alkenes in solution at 0 - 20-degrees-C leads to cyclopropanes apparently derived by stereoselective trapping of a single isomer of a vinylcarbene; in the absence of an alkene, the cyclopropenes rearrange to alkynes.