Two 2-[bis(pentafluorophenyl)boryl]-N,N-dialkylanilines reported here exemplify a new class of intramolecular frustrated B/N Lewis pairs. A structure closely related to this class structure was synthesized in 2003 by Piers et al. but was unable to activate H2. The new aminoboranes can activate hydrogen at near ambient conditions; besides, one of them can hydrogenate imines and enamines in a catalytic fashion demonstrating the validity of the original Piersâ approach to hydrogen activation with ansa-aminoboranes.
此处报道的两个2-双(
五氟苯基)
硼基-N,N-二烷基
苯胺实例展示了一类新的分子内受挫B/N
路易斯酸碱对。2003年,Piers等人曾合成了与这类结构密切相关的化合物,但未能活化
氢气。新型
氨基
硼烷可以在近环境条件下活化
氢气;此外,其中一种化合物还能以催化方式氢化
亚胺和烯胺,证明了Piers最初采用桥连
氨基
硼烷活化
氢气的方法的有效性。