Journal
SYNTHETIC COMMUNICATIONS
Volume 41, Issue 14, Pages 2169-2177Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00397911.2010.501470
Keywords
2-Arylbenzimidazole; 2-arylbenzothiazole; Fe(NO3)3; TMSCl; ultrasonic irradiation
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Funding
- Natural Science Foundation of Zhejiang Province, China [Y407240]
- Lishui University
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[image omitted] A convenient one-pot cyclocondensation method for benzothiazole and benzimidazole syntheses is described. A set of benzothiazoles and benzimidazoles were readily prepared from aromatic ortho-diamines or ortho-aminothiophenol and aldehydes using chlorotrimethylsilane in dimethylformamide as promoter and water scavenger under ultrasonic irradiation in good yields (84-97%).
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