A Stereoselective Povarov Reaction Leading to exo-Tetrahydroindolo[3,2-c]quinoline Derivatives Catalyzed by Iodine

[摘要]：We report an iodine-catalyzed Povarov reaction using indole as dienophile carried out in toluene at room temperature. This three-component reaction, coupling an aldehyde, an amine, and an indole, proved to be an efficient method for synthesizing exo-indolo[3,2-c]quinoline derivatives related to the alkaloid isocryptolepine (cryptosanguinolentine) in good yield and with high stereoselectivity.

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