An Efficient One-Pot Synthesis of Tetrahydroquinoline Derivatives via an Aza Diels—Alder Reaction Mediated by CAN in an Aqueous Medium and Oxidation to Heteroaryl Quinolines.
A new series of 5,6-dihydro-4H-1,2-oxazines were synthesized via hetero Diels-Alder reaction of α-nitrosolefins with derivatives of allylbenzene. α-Nitrosoolefins were generated from ketoximes by the action of chloramine-T and triethylamine.