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IJC-B Vol.51B(06) [June 2012] >

Title: A highly efficient catalytic system for microwave-assisted Suzuki–Miyaura reactions as well as room temperature homocoupling reactions of arylboronic acids in aqueous media
Authors: Tairai, Archana
Sarmah, Chandan
Das, Pankaj
Keywords: Suzuki-Miyaura reaction
Homocoupling reaction
Triphenylmethylamine ligand
Aqueous medium
Issue Date: Jun-2012
Publisher: NISCAIR-CSIR, India
Abstract: An in situ generated catalytic system derived from PdCl2 and (C6H5)3CNH2 shows good-to-excellent activity (upto 92% isolated yield) in the microwave-assisted Suzuki-Miyaura cross-coupling reactions of aryl halides with arylboronic acids in aqueous media. Both electron-donating and electron-withdrawing aryl bromides can be efficiently coupled with arylboronic acids. Chloroarenes can also be coupled, but much lower yields are obtained. Interestingly, the same catalytic system is also found to be effective for homocoupling reactions of arylboronic acids in water. Moderate-to-excellent yields of symmetrical biphenyl compounds can be achieved at room temperature.
Page(s): 843-848
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.51B(06) [June 2012]

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