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A series of 2-amino-5,6,7,8-tetrahydro-5-oxo-4-aryl-7,7-dimethyl-4H-benzo-[b]-pyran-3-carbonitrile were synthesized by reaction of benzylidenemalononitrile derivatives and 5,5-dimethyl-1,3-cyclo-hexanedione under microwave irradiation without catalyst and solvent free.
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