85810-86-2Relevant articles and documents
Efficient one-step synthesis of benzazoles in aqueous media
Boeini, Hassan Zali,Najafabadi, Khadijeh Hajibabaei
supporting information; experimental part, p. 4926 - 4929 (2010/01/18)
Benzazoles (benzoxazoles, benzothiazoles, and benzimidazoles) were efficiently prepared by the aquatic reaction of the corresponding thioamidinium salts and 2-aminophenol, 2-aminothiophenol, and 1,2-diaminobenzene, respectively. The thioamidinium salt was successfully applied as an alternative to a carboxylic acid derivative to react smoothly with an amino precursor and in the presence of catalytic amounts of hexadecyltrimethylammonium bromide salt to produce benzazoles in good to excellent yields. Wiley-VCH Verlag GmbH & Co. KGaA 2009.