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IJC-B Vol.46B(09) [September 2007] >

Title: Environmentally benign approach to imidazole 2-thiones
Authors: Kidwai, Mazaahir
Kukreja, Shuchi
Rastogi, Shweta
Singhal, Kavita
Keywords: Imidazole-2-thione
Solid support
Montmorillonite K-10 clay
Issue Date: Sep-2007
Publisher: CSIR
Abstract: An ecofriendly synthesis of some novel 1,4,5-triarylimidazole-2-thiones/1,3,4,5-tetraarylimidazole-2-thiones is described. The reaction involves condensation of benzoin with various readily accessible N-substituted thioureas/N,N'-disubstituted thioureas under microwave over recyclable inorganic solid support. This methodology eliminates the usage of solvent and external catalyst in the reaction step and reduces the reaction time from hours to minutes along with remarkable yield enhancement. In addition versatility of various solid supports as catalyst is also studied.
Page(s): 1549-1553
ISSN: 0376-4699
Source:IJC-B Vol.46B(09) [September 2007]

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