作者:Markus Lindqvist、Kirill Axenov、Martin Nieger、Minna Räisänen、Markku Leskelä、Timo Repo
DOI:10.1002/chem.201300462
日期:2013.7.29
phorenamine reacted with an equimolar amount of Piers’ borane, HB(C6F5)2, to give the corresponding iminium–hydroborate zwitterionic salt. Being in equilibrium with the parent enamine–HB(C6F5)2 N–B pair, this salt was able to split hydrogen heterolytically, hydrogenating the iminium group in the molecule. Detailed studies revealed that the hydrogen splitting in this reaction proceeded through an intermolecular
二甲基氨基-(+)-樟脑胺与等摩尔量的Piers'硼烷HB(C 6 F 5)2反应,得到相应的亚氨基氢硼酸盐两性离子盐。该盐与母体烯胺-HB(C 6 F 5)2 N-B对平衡,能够杂氢分解氢,使分子中的亚胺基氢化。详细的研究表明,该反应中的氢分裂通过分子间途径进行,从而导致冰片胺-HB(C 6 F 5)2加合物。当起始烯胺的含量超过HB(C 6 F 5)2时,生成的冰片胺–HB(C 6 F 5)2加合物分解,消除了游离冰片胺,形成了最初的樟脑烯胺– HB(C 6 F 5)2对。这导致樟脑烯胺骨架以催化方式氢化。