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| Un-catalyzed tandem Knoevenagel-Michael reaction for the synthesis of 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) in aqueous medium |
| Nilesh P. Tale, Girdharilal B. Tiwari, Nandkishor N. Karade |
| Department of Chemistry, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, Maharashtra 440 033, India |
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Abstract An environmentally benign un-catalyzed one-pot synthesis of 4, 4'-(arylmethylene)bis (1H-pyrazol-5-ols) has been reported via tandem Knoevenagel-Michael reaction of aldehydes with two equivalents of 3-methyl-1-phenyl-1H-pyrazol-5 (4H)-one in aqueous medium.
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Received: 03 May 2011
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| Fund:The authors are thankful to the University Grants Commission, New Delhi, India (No.MRP 32-245/2006 SR) for the financial support. |
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Corresponding Authors:
Nandkishor N.Karade,E-mail address:nnkarade@gmail.com
E-mail: nnkarade@gmail.com
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| About author:: 10.1016/j.cclet.2011.09.004 |
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