3-hexadiene. The products of α-elimination, including 1-methyl-3-phenyl-1-cyclopentene, were also obtained in methanol and ethanol. Solvolysis of the E isomer (E)-1 is faster than that of (Z)-1 in every solvent examined. The percentage of rearrangement is higher with (E)-1 than with (Z)-1, and the main rearranged products are those of migration of the alkyl group trans to the iodonio group, but migration of
Solvolysis of β,β-Dialkylvinyliodonium Salt: Primary Vinyl Cation Intermediate and Alkyl Participation
作者:Tadashi Okuyama、Koichi Sato、Masahito Ochiai
DOI:10.1246/cl.1998.1177
日期:1998.11
Solvolysis of both E and Z isomers of a β,β-dialkylvinyl(phenyl)iodonium salt gave extensively rearranged products. A mechanism involving a primary vinylcationintermediate as well as the alkyl participation leading to secondary vinylcations is proposed.
β,β-二烷基乙烯基(苯基)碘鎓盐的 E 和 Z 异构体的溶剂分解得到广泛重排的产物。提出了一种涉及初级乙烯基阳离子中间体以及烷基参与导致次级乙烯基阳离子的机制。