The syntheses of 6-methylene-2,4-cyclohexadien-1-imine and related o-quinonoids by FVT of 1-hetero-1,2,3,4-tetrahydronaphthalenes

The FVT of simple Diels-Alder adducts, yielding ethylene and reactive o-quinone methide derivatives, was investigated by coupling with MS/MS and low temperature IR-UV spectrometry.