A Rapid and Efficient Access to 4-Substituted 2-Amino-4H-chromenes Catalyzed by InCl3

[摘要]：A series of 4-substituted 2-amino-4H-chromenes was synthesized via a simple and efficient one-pot synthesis from salicylaldehyde, malononitrile, and a few cyclic nucleophiles using indium trichloride as a catalyst. The methodology affords high yields of products in short reaction times.

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