作者:H. M. R. Hoffmann、D. R. Joy、A. K. Suter
DOI:10.1039/j29680000057
日期:——
generated in liquid sulphur dioxide from 2-methylallyl iodide and silver trichloroacetate in the presence of cyclopentadiene, cyclohexadiene, and furan. Some new bridged seven-membered ring olefins, 3-methylbicyclo[3,2,1]octa-2,6-diene, 3-methylenebicyclo[3,2,1]oct-6-ene, 3-methylbicyclo-[3,2,2]nona-2,6-diene, have been isolated, and it is suggested that they arise from a concerted cycloaddition of the allylic
在环戊二烯,环己二烯和呋喃的存在下,在液态二氧化硫中由2-甲基烯丙基碘化物和三氯乙酸银生成了2-甲基烯丙基阳离子。一些新的桥联七元环烯烃,3-甲基双环[3,2,1]辛基-2,6-二烯,3-亚甲基双环[3,2,1] oct-6-烯基,3-甲基双环-[3, 2,2] nona-2,6-diene已被分离出来,表明它们是由烯丙基阳离子与共轭二烯的协同环加成反应产生的。