Y(NO3)3.6H2O catalyzed Four-Component Reaction for the Synthesis of Highly Functionalized Pyrano[2,3-c]pyrazoles in Aqueous Medium

Document Type: Research Paper

Authors

1 1Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran

2 Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran

3 Faculty of Sciences, Velayat University, Iranshahr, Iran

Abstract

An efficient one-pot four-component protocol for the synthesis of pyrano[2,3-c]pyrazole
derivatives has been demonstrated using Y(NO3)3.6H2O as catalyst under mild condition. This is
a general synthetic protocol which could be applicable to a wide range of carbonyl compounds
including aromatic aldehydes, isatins and acenaphthenequinone. All The reactions proceeded
smoothly, high-yielding and purity via an easy work-up procedure.

Keywords