Type II intramolecular annulations between vinylcarbenoids and furans
作者:Huw M.L. Davies、Rebecca Calvo、Gulzar Ahmed
DOI:10.1016/s0040-4039(97)00204-9
日期:1997.3
Rhodium(II) octanoate catalyzed intramolecular reactions between vinyldiazomethanes and furans result in the formation of polycyclic systems by a tandem cyclopropanation/Cope rearrangement.
An Exploratory Study of Type II [3 + 4] Cycloadditions between Vinylcarbenoids and Dienes
作者:Huw M. L. Davies、Rebecca L. Calvo、Robert J. Townsend、Pingda Ren、R. Melvyn Churchill
DOI:10.1021/jo991959b
日期:2000.7.1
dirhodium tetracarboxylate catalyzed decomposition of vinyldiazoacetates. The [3 + 4] cycloaddition is generally considered to occur by a tandem cyclopropanation/Cope rearrangement, although evidence is presented that with these substrates the [3 + 4] cycloaddition may occur in a concerted manner.