Oxidative cyclisation of cis- and trans-2,3-dibenzylbutyrolactones using phenyl iodonium bis(trifluoroacetate) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone
作者:Robert S Ward、David D Hughes
DOI:10.1016/s0040-4020(01)00472-0
日期:2001.6
A series of cis- and trans-2,3-dibenzylbutyrolactones have been subjected to oxidative cyclisation using phenyl iodonium bis(trifluoroacetate) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. The products obtained include two novel spirodienones 6 and 11, which rearrange with acid to give the dibenzocyclo-octadienes 7, and 12 and 13, respectively.
使用苯基碘双(三氟乙酸酯)和2,3-二氯-5,6-二氰基-1,4-苯醌,对一系列顺式和反式-2,3-二苄基丁内酯进行了氧化环化反应。获得的产品包括两个新的spirodienones 6和11,其与酸重新排列,得到dibenzocyclo-辛二烯7,和12和13,分别。