Author/Authors :
Xue، نويسنده , , Zheng and Samanta، نويسنده , , Anindya and Whittlesey، نويسنده , , Bruce R. and Mayer، نويسنده , , Michael F.، نويسنده ,
Abstract :
The viologen N,N′-dicyanomethyl-4,4′-bipyridinium·2PF6 was found to induce an aza-Diels–Alder reaction of N-arylimines with N-vinylpyrrolidinone or N-vinylcarbazole, producing tetrahydroquinoline derivatives with high cis/trans selectivities and yields.