An efficient synthesis of b-amino ketone compounds through one-pot three-component mannich-type reactions using bismuth nitrate as catalyst

الملخص EN

Three components one-pot Mannich reaction of aromatic ketone, aromatic aldehyde and aromatic amines has been efficiently catalyzed by recyclable bismuth nitrate (Bi(NO3)3, BN) at ambient temperature to give various b-amino carbonyl compounds in high yields.

This method has advantages of mild condition, no environmental pollution, and simple work-up procedures.

Most importantly, b-amino carbonyl compounds with ortho-substituted aromatic amines are obtained in acceptable to moderate yields by this methodology.