Tandem Inverse Electron-Demand Diels−Alder Reactions of 4,5-Dicyanopyridazine with Nonconjugated Dienes: An Excellent Direct Entry into Carbo- and Hetero-Cage Systems
Tandem Inverse Electron-Demand Diels−Alder Reactions of 4,5-Dicyanopyridazine with Nonconjugated Dienes: An Excellent Direct Entry into Carbo- and Hetero-Cage Systems