Journal
TETRAHEDRON LETTERS
Volume 46, Issue 50, Pages 8645-8647Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.10.052
Keywords
catalytic cyanation; aryl bromide; zinc cyanide; palladium catalyst; low-coordinated phosphorus ligand
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A palladium complex bearing 1,2-diphenyl-3,4-diphosphinidenecyclobutene ligand (DPCB) has been used to facilitate the catalytic cyanation of aryl bromides. A series of substituted benzonitriles was prepared in good to high yields by the treatment of the corresponding aryl bromides with Zn(CN)(2) in N-methyl-2-pyrrolidone in the presence of 2-4 mol % catalyst at 100 degrees C for 16 h. (c) 2005 Elsevier Ltd. All rights reserved.
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