Azoles. Part 6. A convenient synthesis of polysubstituted imidazoles from 1-protected 2,4,5-tribromoimidazoles
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 1453-1455
- https://doi.org/10.1039/p19870001453
Abstract
Starting from 1-benzyl-2,4,5-tribromoimidazole ‘one-pot’ methods are described for the synthesis of 1-benzyl-4,5-dibromo-2-methylthioimidazole (1)(72%), 1-benzyl-4-bromo-2,5-bis(methylthio)imidazole (3)(72%), 1-benzyl-2,4,5-tris(methylthio)imidazole (4)(67%), 1-benzyl-4-bromoimidazole (2)(71%), 4-bromo-2,5-bis(methylthio)-1-(1-phenylpentyl)imidazole (71%), 2,5-bis(methylthio)imidazole-4-carbaldehyde (6)(46%), and 1-benzyl-4-bromoimidazole-5-carbaldehyde (7)(60%). N-1-Deprotection reactions are also reported.Keywords
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