Directive effects in the hydroboration of 1-alkenyl derivatives of o-carborane with representative hydroborating agents
作者:G.W. Kabalka、G. Hondrogiannis
DOI:10.1016/s0022-328x(96)06695-8
日期:1997.5
A series of 1-alkenyl-o-carboranes was hydroborated using representative hydroborating agents with different steric requirements. The steric and electronic effects of the carboranyl group were evaluated by examining the distribution of the isomeric alcohols obtained after oxidation of the intermediate carboranyl-substituted organoboranes.
Rhodium‐Catalyzed Regioselective Hydroxylation of Cage B−H Bonds of
<i>o</i>
‐Carboranes with O
<sub>2</sub>
or Air
作者:Hairong Lyu、Yangjian Quan、Zuowei Xie
DOI:10.1002/anie.201605880
日期:2016.9.19
A rhodium‐catalyzed hydroxylation of a cage B4−H bond in o‐carboranes with either O2 or air as the oxygen source is described, and serves as a new methodology for the regioselective generation of a series of 4‐OH‐o‐carboranes in a one‐pot process. The use of either O2 or air as both the oxidant and the oxygen source makes this protocol very environmentally friendly and practical.