DEHMLOW, ECKEHARD V.;WINTERFELDT, ANDREAS, TETRAHEDRON, 45,(1989) N0, C. 2925-2936
作者:DEHMLOW, ECKEHARD V.、WINTERFELDT, ANDREAS
DOI:——
日期:——
Chlorofluorocarbene addition to alkynes: a novel path to cyclopropenones with uncommon substituents (cyclopropenone chemistry, part 11)
作者:Eckehard V. Dehmlow、Andreas Winterfeldt
DOI:10.1016/s0040-4020(01)80121-6
日期:1989.1
Phase transfer catalytically generated chlorofluorocarbene adds to alkynes much more readily than dichlorocarbene. Some sterically shielded or critically substituted compounds that do not give addition with CCl2 can be reacted with CClF. Chlorofluorocyclopropenes thus formed are hydrolyzed to cyclopropenones in situ. Hitherto unknown α-oxygen functional cyclopropenones were also prepared for the first