Reactions of carbenes with bicyclobutanes and quadricyclane
作者:James E. Jackson、George B. Mock、Merry L. Tetef、Guo-xiu Zheng、Maitland Jones
DOI:10.1016/s0040-4020(01)96386-0
日期:1985.1
concerted addition in which the central and side bonds are cleaved simultaneously. MNDO calculations support such a pathway and suggest that endo attack on the bicyclobutane is preferred to exo. Reaction of the same two carbenes with quadricyclane gives substituted derivatives of the exo-tricyclo[3.2.1.02,4]oct-6-ene system. Although these products rearrange further under the conditions of reaction and/or