Title of article
Design, characterization and application of new ionic liquid 1-sulfopyridinium chloride as an efficient catalyst for tandem Knoevenagel–Michael reaction of 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one with aldehydes Original Research Article
Author/Authors
Ahmad Reza Moosavi-Zare، نويسنده , , Mohammad Ali Zolfigol، نويسنده , , Mahmoud Zarei، نويسنده , , Abdolkarim Zare، نويسنده , , Vahid Khakyzadeh، نويسنده , , Alireza Hasaninejad، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
8
From page
61
To page
68
Abstract
In this work, novel ionic liquid 1-sulfopyridinium chloride {[Pyridine–SO3H]Cl} is synthesized, and characterized by IR, 1H and 13C NMR, UV as well as mass spectra. The ionic liquid is used as an efficient, homogeneous and reusable catalyst for the synthesis of 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)s by tandem Knoevenagel–Michael reaction of 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one with various aromatic and hetero-aromatic aldehydes under mild reaction conditions.
Keywords
3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one , Aldehyde , Ionic liquid , 4 , 4?-(Arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)
Journal title
Applied Catalysis A:General
Serial Year
2013
Journal title
Applied Catalysis A:General
Record number
1157574
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