作者:Hassan Zali Boeini、Khadijeh Hajibabaei Najafabadi
DOI:10.1002/ejoc.200900740
日期:2009.10
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
苯并唑(苯并恶唑、苯并噻唑和苯并咪唑)分别通过相应的硫脒盐与 2-氨基苯酚、2-氨基苯硫酚和 1,2-二氨基苯的水生反应有效制备。硫脒盐成功地用作羧酸衍生物的替代物,与氨基前体顺利反应,并在催化量的十六烷基三甲基溴化铵盐的存在下以良好至极好的收率生产苯并唑。 (© Wiley-VCH Verlag GmbH & Co . KGaA, 69451 德国魏因海姆, 2009)