The first examples for the rhenium-catalysed hydroboration of aldehydes, ketones and aldimines, including heteroaromatic quinoline, are reported herein. Reactions are remarkably chemoselective and tolerant of several functional groups. A wide array of rhenium complexes were efficient pre-catalysts for these hydroborations, including new low-valent complexes of the formula [Re(N-N)(CO)3(L)]X (N-N =
本文报道了the催化醛,
酮和醛
亚胺,包括杂芳族
喹啉的
硼氢化反应的第一个实例。反应对多种官能团具有显着的
化学选择性和耐受性。各种各样的rh络合物是这些
硼氢化反应的有效预
催化剂,包括式[Re(NN)(CO)3(L)] X的新型低价络合物(NN =双联衍
生物,L =不稳定的
配体/溶剂和X = [
BAr F 4 ] -和[B(3,5-di- t Bu-cat)2 ] -),其特征已得到充分表征,其中包括对[Re(bipy)(CO)的X射线衍射研究)3(quin)] [
BAr F 4 ](2)。一种新的
银spiroboronate
酯的Ag [B(3,5-二-吨卜猫)2 ](3)制备和表征充分,包括一个X射线衍射研究,并用于使新的
铼配合之一。