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Title: Iodine (III) mediated synthesis of new 5-aryl-3-(4-hydroxy-6-methyl-2H-pyran-2-oxo-3-yl)-1-phenylpyrazoles from dehydrogenation of 5-aryl-3-(4-hydroxy-6-methyl-2H-pyran-2-oxo-3-yl)-1-phenylpyrazolines
Authors: Prakash, Om
Kumar, Ajay
Kinger, Mayank
Singh, Shiv P
Keywords: Iodine;phenylpyrazoles;dehydrogenation;phenylpyrazolines
Issue Date: Feb-2006
Publisher: CSIR
IPC Code: Int.Cl.7 C 07 D
Abstract: 3-Cinnamoyl-4-hydroxy-6-methyl-2-pyrones (chalcone analogs of DHA) on condensation with phenylhydrazine in ethanol, yield 5-aryl-3-(4-hydroxy-6-methyl-2H-pyran-2-oxo-3-yl)-1-phenylpyrazolines which undergo smooth dehydrogenation to the corresponding pyrazoles in good yield upon treatment with iodobenzene diacetate (IBD).
Page(s): 456-460
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.45B(02) [February 2006]

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