2-Methyl-1,2,3Ï2-diazaphospholes are obtained as hydrochlorides from methylhydrazones and an ecxess of PCl3 which, with longer reaction times, give the 4-dichlorophosphino-derivatives; 4-alkyl substituted diazaphospholes may be separated from their mixture with 4-unsubstituted compounds by the use of this reaction.
2-甲基-1,2,3Ï2-二氮杂
萘酚以盐酸盐形式从甲基
肼和少量 PCl3 中获得,反应时间越长,得到的 4-二
氯膦衍
生物就越多;利用这种反应,可以将 4-烷基取代的二氮杂
萘酚从它们与 4-未取代化合物的混合物中分离出来。