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Thermal migration of an ethynyl group from one benzene ring to another by reversible vinylidene CH insertion

1997; Elsevier BV; Volume: 38; Issue: 11 Linguagem: Inglês

10.1016/s0040-4039(97)00225-6

1873-3581

Lawrence T. Scott, Atena Necula,

Cyclopropane Reaction Mechanisms

Evidence is presented for the high temperature opening of a 5-membered ring by extrusion of a carbene (the reverse of a CH bond insertion), which results in the net thermal migration of an ethynyl group from one benzene ring to another.