8-Aminoquinoline as a bidentate traceless directing group for Cu-catalyzed selective B(4,5)–H disulfenylation of <i>o</i>-carboranes
作者:Yu Chen、Yangjian Quan、Zuowei Xie
DOI:10.1039/d0cc05207h
日期:——
A traceless bidentate directing group guided copper catalyzed cage B(4,5)–H disulfenylation of o-carboranes has been achieved, where the in situ departure of 8-aminoquinoline circumvents additional process for directing group removal.
Fe-Catalyzed Intramolecular B–H/C–H Dehydrogenative Coupling: Synthesis of Carborane-Fused Nitrogen Heterocycles
作者:Yu Chen、Hairong Lyu、Yangjian Quan、Zuowei Xie
DOI:10.1021/acs.orglett.1c01104
日期:2021.6.4
We disclose herein the first example of iron-catalyzed regioselective intramolecular C–H/B–H dehydrogenative coupling, affording unprecedented C,B-substituted carborane-fused phenanthroline derivatives. The 8-aminoquinoline type auxiliaries not only serve as the bidentate directing groups but also ingeniously become the core part of the final products. The mechanistic hypothesis includes B–H activation