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卷 41, 期 44, 页码 8457-8460出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(00)01500-8
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We report the first use of a nickel catalyst for the direct arylation of a beta -difunctionalized compound, the malononitrile, from halogenated aromatic substrates. The catalytic system is quite simple: Ni(PPh3)(3), generated in situ from NiBr2(PPh3)(2), PPh3 and zinc. Good yields and excellent selectivities have been obtained in alpha -arylmalononitriles from iodobenzene, but also from bromo- or chloro-aromatic substrates. (C) 2000 Elsevier Science Ltd. All rights reserved.
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