Tetrahedron Letters

Room temperature synthesis of tri-, tetrasubstituted imidazoles and bis-analogues by mercaptopropylsilica (MPS) in aqueous methanol: application to the synthesis of …

C Mukhopadhyay, PK Tapaswi, MGB Drew

文献索引：Mukhopadhyay, Chhanda; Tapaswi, Pradip Kumar; Drew, Michael G.B. Tetrahedron Letters, 2010 , vol. 51, # 30 p. 3944 - 3950

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被引用次数: 54

摘要

The heterogeneous solid catalyst, mercaptopropylsilica (MPS), has been prepared by a modified procedure in water and its structure confirmed by solid state carbon-13 CP-MAS NMR spectrum. This catalyst has been efficiently utilized for the synthesis of a wide variety of tri-, tetrasubstituted imidazoles and their bis-analogues at room temperature. The protocol was further explored for the synthesis of the drug trifenagrel.