- The surfactant-promoted cross-coupling reactions of arylboronic acids with carboxylic anhydrides or acyl chlorides in water
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The palladium(II) chloride catalyzed cross-coupling of arylboronic acids with carboxylic anhydrides or acyl chlorides in water in the presence of various surfactants is described. The inexpensive and industrially widely used sodium dodecyl sulfate (SDS) was found to be a good promoter of the coupling reaction and aryl ketones were obtained in good yields without the use of phosphine ligands. The reactions were unaffected by the presence of electron-releasing and electron-withdrawing substituents in both the arylboronic acids and carboxylic derivatives and a variety of aryl ketones were obtained under mild conditions in air. Georg Thieme Verlag Stuttgart.
- Xin, Bingwei,Zhang, Yuhong,Cheng, Kai
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- Synthesis of aryl ketones by cross-coupling reaction of arylboronic acids with carboxylic anhydrides in aqueous phase
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A highly efficient aqueous system of PdCl2-catalyzed cross-coupling reaction of arylboronic acid with carboxylic anhydride (Suzuki-type reaction) without the use of phosphine ligands was developed. The reactions went smoothly in acetone/H2O phase to give good yields of aryl ketones in short reaction times (1-3 h) at room temperature in air and were unaffected by the presence of electron-releasing and electron-withdrawing substituents in both the arylboronic acids and carboxylic anhydrides. Copyright Taylor & Francis Group, LLC.
- Xin, Bing-Wei
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experimental part
p. 2826 - 2837
(2009/04/04)
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- Benzophenones and benzhydrols
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Compounds having the formula STR1 WHERE X is --CO-- or --CHOH--, Y and Z are halogen, alkyl, trifluoromethyl, alkoxy, hydroxy, nitro, cyano, carboxy, carbalkoxy, carbamoyl, or alkylthio, and m and n are 0, 1, or 2 Are useful in controlling undesirable secondary growth in plants, particularly sucker growth in tobacco.
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