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- W2951380212 abstract "A general method for the intermolecular coupling of aryl halides and amides using a Xantphos/Pd catalyst is described. This system displays good functional group compatibility, and the desired C−N bond forming process proceeds in good to excellent yields with 1−4 mol % of the Pd catalyst. Additionally, the arylation of sulfonamides, oxazolidinones, and ureas is reported. The efficiency of these transformations was found to be highly dependent on reaction concentrations and catalyst loadings. A Pd complex resulting from oxidative addition of 4-bromobenzonitrile, (Xantphos)Pd(4-cyanophenyl)(Br) (II), was prepared in one step from Xantphos, Pd2(dba)3, and the aryl bromide. Complex II proved to be an active catalyst for the coupling between 4-bromobenzonitrile and benzamide. X-ray crystallographic analysis of II revealed a rare trans-chelating bisphosphine-Pd(II) structure with a large bite angle of 150.7°." @default.
- W2951380212 created "2019-06-27" @default.
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- W2951380212 date "2010-05-19" @default.
- W2951380212 modified "2023-09-23" @default.
- W2951380212 title "ChemInform Abstract: Pd-Catalyzed Intermolecular Amidation of Aryl Halides: The Discovery that Xantphos Can be trans-Chelating in a Palladium Complex." @default.
- W2951380212 cites W1972693920 @default.
- W2951380212 doi "https://doi.org/10.1002/chin.200241093" @default.
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