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Abstract

SYNTHESIS OF 2-AMINO-4H-BENZO [b] PYRAN DERIVATIVES USING DBU AS AN EFFICIENT CATALYST WITH ITS ANTIOXIDANT ACTIVITY

Rais A. Sayyed, Javeriya Jilani S. Shaikh and Ashok R. Karad*

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Abstract

A green, mild, most efficient, eco-friendly procedure has been developed for the synthesis of tetrahydro benzo [b] pyran derivatives from one-pot three component condensation reactions of various aromatic aldehydes, malononitrile and dimedone in aquous ethanol at room temperature by using 1,8-diazabicyclo[5.4.0]undec-7-ene(DBU) as an efficient catalyst.

Keywords: Aromatic Aldehydes, Malonitrile, DBU. MCRs.


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