New selenenylation method. Synthesis of setenonaphthoquinones and selenoquinolinequinones mediated by phenyl selenide ion
作者:Makoto Sakakibara、Yoshihiko Watanabe、Takeshi Toru、Yoshio Ueno
DOI:10.1039/p19910001231
日期:——
aqueous NaOH was found to be a good method for the generation of phenyl selenide ion. A variety of 2-halogeno-1,4-naphthoquinones and halogenoquinolinequinones were efficiently converted into the corresponding seleno compounds. Selenenylation of 2,3-dichloro-1,4-naphthoquinone gave 2,3-bis(phenylseleno)-1,4-naphthoquinone. The reaction of 2-bromo-1,4-napthoquinone afforded 2,3-bis(phenylseleno)naphthoquinone
发现用NaOH水溶液处理二苯基二硒化物和三丁基膦是产生苯基硒化物离子的良好方法。各种2-卤代-1,4-萘醌和卤代喹啉醌被有效地转化为相应的硒代化合物。2,3-二氯-1,4-萘醌的硒烯基化得到2,3-双(苯基硒代)-1,4-萘醌。除了作为主要产物的2-(苯基硒代)萘醌外,2-溴-1,4-萘醌的反应以明显的产率得到了2,3-双(苯基硒代)萘醌。当反应在完全无氧的条件下进行时,二硒代化合物的形成减至最少。讨论了该亚硒基化的反应机理。