Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 74, Issue 5, Pages 2217-2220Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo802589d
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Funding
- DST New Delhi [SR/S1/OC-15/2006]
- CSIR [01(1688)/00/EMR11]
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An efficient method for the preparation of various substituted 2-mercapto benzimidazoles from their corresponding thioureas has been developed. S-Alkylation of thioureas followed by Cu-catalyzed intramolecular N-arylation furnished substituted 2-mercapto benzimidazoles in high yields and short reaction times. Furthermore, 2-mercapto benzimidazoles substituted with a p-methoxybenzyl group allowed access to benzimidazole thiones.
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