Chemistry Letters, Vol.29, No.7, 798-799, 2000
The formation of quinolin-2(1H)-ones via electrocyclic reaction of o-isocyanatostyrenes generated in situ from o-isocyanostyrenes
A convenient one-pot preparation of 4-substituted or 3,4-disubstituted quinolin-2(1H)-ones from 2-isocyanostyrene derivatives, which involves mCPBA oxidation to the corresponding isocyanate intermediates followed by electrocyclization, is described.