Preparation and reactivity of arylsulfonyl substituted cyclopropenes
作者:Albert Padwa、M. Woods Wannamaker
DOI:10.1016/s0040-4020(01)86547-9
日期:1991.8
behavior of several arylsulfonyl substituted alkynes with 2-diazopropane has been carried out. These activated acetylenes react to give 3H-pyrazoles which extrude nitrogen on photolysis to produce cyclopropenes in high yield. Soft nucleophiles such as thiophenoxide readily add to the activated pi-bond to give thiophenyl substituted cyclopropanes. Reaction of 1-phenylsulfonyl-2,3,3-trimethylcyclopropene