R. V. Hangarge, Sh. A. Siddiqui, S. Shengule, M. S. Shingare, “Synthesis of 3-methyl-4-[(chromon-3-yl)methylene]-1-phenylpyrazolin-5-(4H)-ones catalysed by MCM-41-SO3H”, Mendeleev Commun., 2002, Volume 12, Issue 5,Pages 209

This article is cited in 6 papers

Synthesis of 3-methyl-4-[(chromon-3-yl)methylene]-1-phenylpyrazolin-5-(4H)-ones catalysed by MCM-41-SO₃H

R. V. Hangarge^a, Sh. A. Siddiqui^b, S. Shengule^b, M. S. Shingare^a

^a Department of Chemistry, Dr. B.A. Marathwada University, Aurangabad, India
^b OCT Division, National Chemical Laboratory, Pune, India

Abstract: The condensation of 4-oxo-4H-1-benzopyran-3-carbaldehydes with 3-methyl-1-phenylpyrazolin-5-(4H)-ones in dioxane to afford 3-methyl-4-[(chromon-3-yl)methylene]-1-phenylpyrazolin-5-(4H)-ones was performed using MCM-41-SO₃H as a catalyst.

Language: English

DOI: 10.1070/MC2002v012n05ABEH001611