1,2,2-Trihalocyclopropane 1-carboxylic acids and derivatives thereof are useful in regulating the growth and flowering of plants when applied as a foliar spray or as a post emergent or pre-emergent soil treatment.
2-Vinyl-1,1,2-trihalocyclopropanes-valuable five carbon cyclopropane and cyclopropene synthetic intermediates
作者:Ahmad R. Al Dulayymi、Mark S. Baird
DOI:10.1016/0040-4020(96)00592-3
日期:1996.8
3-dichlorobutadiene are readily dehalogenated by reaction with methyllithium to give 1-halo-2-vinylcyclopropenes which on further lithium-halogen exchange give synthetically useful 1-lithio-2-vinylcyclopropenes. Trapping of 1-lithio-2-(1-chlorovinyl)cyclopropene with methyl chloroformate leads to a very unusual cyclononadienyne.