Ring–Ring Interconversions of Nitrosoimidazoles. The Effect of some Condensed Six-Membered Rings on the Reactivity
作者:Roberta Billi、Barbara Cosimelli、Domenico Spinelli、Aldo Andreani、Alberto Leoni
DOI:10.1016/s0040-4020(00)00600-1
日期:2000.8
effect of a condensed ring on the reactivity of nitrosoimidazoles with hydrochloric acid has been extended to some six-membered rings: thus, the reactivity of 2-(4-chlorophenyl)-3-nitrosoimidazo[1,2-a]pyridine (6), 6-chloro-2-(4-chlorophenyl)-3-nitrosoimidazo[1,2-b]pyridazine (7), 2-(4-chlorophenyl)-3-nitrosoimidazo[1,2-a]pyrimidine (8a) and 2-(4-chlorophenyl)-3-nitrosoimidazo[1,2-a]pyrazine (9) has been
关于稠环对亚硝基咪唑与盐酸反应性的影响的研究已扩展到一些六元环:因此,2-(4-氯苯基)-3-亚硝基咪唑[1,2- a ]的反应性吡啶(6),6-氯-2-(4-氯苯基)-3-亚硝基磺并咪唑[1,2- b ]哒嗪(7),2-(4-氯苯基)-3-亚硝基磺并咪唑[1,2- a ]检验了嘧啶(8a)和2-(4-氯苯基)-3-亚硝基氨基咪唑并[1,2- a ]吡嗪(9)。观察到化合物6 – 9反应性的显着差异(分别进行了亚硝化,消除氨的开环,C 3片段的意外丢失和分解的开环互变)。