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Issue 11, 2016
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Cobalt catalysed, copper assisted C(sp2)–P cross coupling

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An efficient protocol for the cross coupling of styrenyl/aryl halides and H-phosphinate has been developed using a unique Co/Cu catalytic system in the absence of any additional ligand for the first time. A library of diversely functionalised styrenyl/aryl phosphonates has been synthesized using this procedure. The advantages offered using this procedure are operational simplicity, the use of inexpensive and relatively benign metals as a catalyst, wide tolerance to functionality including electron withdrawing and releasing substituents, excellent stereoselectivity and high yields. The mechanism has also been established. The unique feature of this Co/Cu system is that, it primarily involves Co in the catalytic cycle and Cu in the transmetalation process.

Graphical abstract: Cobalt catalysed, copper assisted C(sp2)–P cross coupling

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The article was received on 19 Jul 2016, accepted on 21 Sep 2016 and first published on 22 Sep 2016

Article type: Paper
DOI: 10.1039/C6NJ02247B
Citation: New J. Chem., 2016,40, 9556-9564
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    Cobalt catalysed, copper assisted C(sp2)–P cross coupling

    T. Ghosh, P. Maity, D. Kundu and B. C. Ranu, New J. Chem., 2016, 40, 9556
    DOI: 10.1039/C6NJ02247B

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