Volume 121, Issue 29 pp. 5454-5458
Zuschrift

A Facile Route to Aryl Boronates: Room-Temperature, Copper-Catalyzed Borylation of Aryl Halides with Alkoxy Diboron Reagents

Christian Kleeberg Dr.

Christian Kleeberg Dr.

Department of Chemistry, Durham University, South Road, Durham, DH1 3LE (UK), Fax: (+44) 191-384-4737 http://www.dur.ac.uk/chemistry/staff/profile/?id=194

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Li Dang

Li Dang

Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China), Fax: (+852) 2358-1594 http://ihome.ust.hk/∼chzlin

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Zhenyang Lin Prof. Dr.

Zhenyang Lin Prof. Dr.

Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (China), Fax: (+852) 2358-1594 http://ihome.ust.hk/∼chzlin

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Todd B. Marder Prof. Dr.

Todd B. Marder Prof. Dr.

Department of Chemistry, Durham University, South Road, Durham, DH1 3LE (UK), Fax: (+44) 191-384-4737 http://www.dur.ac.uk/chemistry/staff/profile/?id=194

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First published: 01 July 2009
Citations: 121

C.K. thanks the Deutsche Forschungsgemeinschaft (DFG) for a postdoctoral fellowship and Dr. A. S. Batsanov (Durham) for helpful discussions concerning the X-ray diffraction studies. T.B.M. thanks AllylChem Co. Ltd. for a generous gift of B2pin2 and B2neop2 and the Royal Society (UK) for an International Outgoing Short Visit Grant. Z.L. thanks the Research Grants Council of Hong Kong (HKUST 601507) for support.

Abstract

Eine einfache und effektive kupferkatalysierte Borylierung von Arylhalogeniden, einschließlich elektronenreicher und sterisch gehinderter Arylbromide, mit Alkoxydiborreagentien gelingt unter milden Bedingungen (siehe Schema). DFT-Rechnungen legen nahe, dass eine σ-Bindungsmetathese zwischen einer Kupfer-Boryl-Zwischenstufe und dem Arylhalogenid zum Arylboronat führt.

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