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

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

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

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Veröffentlicht in:Mendeleev communications 2002, Vol.12 (5), p.209-210
Hauptverfasser: Hangarge, Rajkumar V., Siddiqui, Shafi A., Shengule, Sudhir R., Shingare, Murlidhar S.
Format: Artikel
Sprache:eng
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Zusammenfassung:The condensation of 4-oxo-4 H-1-benzopyran-3-carbaldehydes with 3-methyl-1-phenylpyrazolin-5-(4 H)-ones in dioxane to afford 3-methyl-4-[(chromon-3-yl)methylene]-1-phenylpyrazolin-5-(4 H)-ones was performed using MCM-41-SO 3H as a catalyst.
ISSN:0959-9436
DOI:10.1070/MC2002v012n05ABEH001611