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摘要
Catalyzed by molecular iodine at room temperature, under solvent-free conditions, a two component aza-Diels-Alder cyclization of N-vinyl-2-pyrrolidinone with N-arylimine gave tetrahydroquinoline derivatives in good yields and high stereo-selectivity. And three components aza-Diels-Alder reaction of N-vinyl-2-pyrrolidinone, anilines and indole-3-carbaldehydes under the same condition afford only cis-product in good yields.
