Auto-tandem catalysis: synthesis of 4H-pyrido[1,2-a]pyrimidin-4-ones via copper-catalyzed aza-Michael addition-aerobic dehydrogenation-intramolecular amidation

[摘要]：A copper-catalyzed domino synthesis of 4H-pyrido[1,2-a]pyrimidin4-ones has been developed from 1,4-enediones and 2-aminoheterocycles with air as the oxidant.

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