Author/Authors :
Tchabanenko، نويسنده , , Kirill and Taylor، نويسنده , , Marcus G.O. and Adlington، نويسنده , , Robert M. and Baldwin، نويسنده , , Jack E.، نويسنده ,
Abstract :
On heating, the di-Boc-pyridin-4-one derivative 7 gave an unstable 3-methylenepyridin-4-one intermediate 3, which underwent a rearomatising Diels–Alder cycloaddition with activated alkenes to give substituted pyrano[3,2-c]pyridines in moderate yields.