Kidwai, Mazaahir ; Bansal, Vikas ; Mothsra, Poonam ; Saxena, Shilpi ; Somvanshi, Rishi K. ; Dey, Sharmistha ; Singh, Tej P. (2007) Molecular iodine: a versatile catalyst for the synthesis of bis(4-hydroxycoumarin) methanes in water Journal of Molecular Catalysis A: Chemical, 268 (1-2). pp. 76-81. ISSN 1381-1169
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S13811...
Related URL: http://dx.doi.org/10.1016/j.molcata.2006.11.054
Abstract
Molecular iodine has been used an efficient catalyst for an improved and rapid one-pot synthesis of 3,3'-arylmethylenebis-(4-hydroxycoumarin) and 2,2'-arylmethylenebis(3-hydroxyl-5,5-dimethyl-2-cyclohexen-1-one) in excellent yields using water as a reaction medium. This aqua mediated Michael addition of various aromatic and heteroaromatic aldehydes with 4-hydroxycoumarin or dimedone using catalytic amount of molecular iodine devoids the use of expensive, corrosive reagents, toxic sovents and provides the operational simplicity.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | 3,3'-Arylmethylenebis-(4-Hydroxycoumarin); 2,2'-Arylmethylenebis(3-Hydroxyl-5; 5-Dimethyl-2-Cyclohexen-1-One); Michael Condensation; Water; Molecular Iodine |
| ID Code: | 49087 |
| Deposited On: | 18 Jul 2011 13:36 |
| Last Modified: | 18 Jul 2011 13:36 |
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