作者:S. Govori、V. Rapic、O. Led、M. Čačić、I. Tabaković
DOI:10.1002/jhet.5570330224
日期:1996.3
By the action of 2-aminothiazole, 2-aminopyridines, and 2-aminopyrimidines, respectively, on 4-chloro-3-nitrocoumarin (3) the corresponding 4-heteroarylamino-3-nitrocoumarins 5–7 have been isolated in very good yields. Reactions of coumarins 6 and 7 with either aqueous tetrabutylammonium bisulfate/sodium hydroxide in a two phase system or 5% aqueous sodium hydroxide have been studied.
通过2-氨基噻唑,2-氨基吡啶和2-氨基嘧啶在4-氯-3-硝基香豆素上的作用(3),相应的4-杂芳基氨基-3-硝基香豆素5-7的分离得率很高。研究了香豆素6和7与两相体系中的硫酸氢四丁基铵/氢氧化钠或5%氢氧化钠的反应。