Catalytic Oxidative Dehydrogenative Coupling of Cage B–H/B–H Bonds for Synthesis of Bis(o‑carborane)s

An efficient and succinct protocol for synthesis of bis­(o-carborane) connected by a B–B bond via palladium catalyzed oxidative dehydrogenative coupling of cage B–H/B–H bonds was developed for the first time. A series of bis­(o-carborane)­s connected by B(4)–B(4)′ and B(4)–B(5)′ bonds was synthesize...

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Bibliographic Details
Published in:Organic letters 2019-08, Vol.21 (15), p.5986-5989
Main Authors: Wu, Ji, Cao, Ke, Zhang, Cai-Yan, Xu, Tao-Tao, Ding, Li-Fang, Li, Bo, Yang, Junxiao
Format: Article
Language:English
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Summary:An efficient and succinct protocol for synthesis of bis­(o-carborane) connected by a B–B bond via palladium catalyzed oxidative dehydrogenative coupling of cage B–H/B–H bonds was developed for the first time. A series of bis­(o-carborane)­s connected by B(4)–B(4)′ and B(4)–B(5)′ bonds was synthesized with moderate to good yields. This work opens the door for miscellaneous applications of bis­(o-carborane) in related disciplines and has important value in design and synthesis of different kinds of biscarboranes.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.9b02129