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Synthesis 2011(1): 91-96
DOI: 10.1055/s-0030-1258321
DOI: 10.1055/s-0030-1258321
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
CuSO4-Mediated Homocoupling of Arylboronic Acids under Ligand- and Base-Free Conditions in Air
Further Information
Received
28 September 2010
Publication Date:
09 November 2010 (online)
Publication History
Publication Date:
09 November 2010 (online)
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Abstract
The homocoupling of arylboronic acids mediated by very inexpensive and air stable copper(II) sulfate in N,N-dimethylformamide affords the corresponding symmetrical biaryls in moderate to good yields. The homocoupling reaction proceeds in air at 50 ˚C in the presence of molecular sieves without any additives such as base and ligand.
Key words
homocoupling - arylboronic acids - copper(II) sulfate - biaryls
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