Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 641, Issue 1-2, Pages 30-40Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-328X(01)01293-1
Keywords
carbonylation; palladium; ferrocenyl phosphines; aryl chlorides; homogeneous catalysis; benzoic acids
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The alkoxycarbonylation of different aryl chlorides was studied. Studies of the butoxycarbonylation of 4-chlorobenzotrifluoride and chlorobenzene using chelating ferrocenylphosphines reveal the advantages of these ligands compared to the wen-known tricyclohexylphosphine (PCy3). (1-(2-(Dicyclohexylphosphino)ferroceuyl)ethyldicyclohexylphosphine (4) was shown to give the most active palladium catalyst system. The usefulness of this catalyst is demonstrated in the alkoxycarbonylation of various aryl chlorides. Optimized carbonylation conditions were realized by a statistical design of three critical reaction parameters. (C) 2002 Elsevier Science B.V. All rights reserved.
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