o-Phenylenediamine as a New Catalyst in the Highly Regioselective Conversion of Epoxides to Halohydrins with Elemental Halogens – A Reinvestigation
作者:Miroslaw Soroka、Waldemar Goldeman
DOI:10.1007/s00706-005-0421-9
日期:2006.2
-phenylenediamine is not a catalyst in the ring opening reaction of epoxides by means of bromine or iodine. The o -phenylenediamine is just a reactant which reacts with iodine to give phenazine-2,3-diamine and hydrogen iodide, or with bromine to give a mixture of brominated and polymerized products as well as hydrogen bromide. The hydrogen halogenides are in fact the real epoxide ring opening reactants.
与先前的报告相反, 邻 苯二胺不是通过溴或碘进行环氧化物开环反应的催化剂。所述 Ô 苯二胺仅仅是一个反应物,其与碘反应,得到吩嗪-2,3-二胺和碘化氢,或用溴,得到溴化和聚合产物的混合物,以及溴化氢。卤化氢实际上是真正的环氧化物开环反应物。