Chowdhury, Abhishek Dutta ; Mobin, Shaikh M. ; Mukherjee, Soumen ; Bhaduri, Sumit ; Lahiri, Goutam Kumar (2011) [Pd(L)Cl2]-catalyzed selective hydroxylation of arylboronic acids to phenols European Journal of Inorganic Chemistry, 2011 (21). pp. 3232-3239. ISSN 1434-1948
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/ejic.20...
Related URL: http://dx.doi.org/10.1002/ejic.201100240
Abstract
The palladium complex [Pd(L)Cl2] (1) has been prepared by the reaction of Pd(COD)Cl2 (COD = 1,5-cyclooctadiene) with L [N,N'-bis(diphenylphosphanyl)-2-(diphenylphosphanyl)ethanamine]. The ligand L and complex 1 have been characterized by elemental analysis, mass spectrometry and 1H/31P NMR spectroscopy. In the presence of O2, 1 selectively catalyzes the hydroxylation of a variety of arylboronic acids to the corresponding phenol derivatives in solvents with low-dielectric constants at 298K , although in solvents with high dielectric constants the same reaction leads to the formation of both phenol and the coupled product, i.e. biaryl. The mechanistic aspects of the selective phenol formation from arylboronic acid with 1 have been addressed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Palladium; Homogeneous Catalysis; Phosphane Ligands; Hydroxylation |
| ID Code: | 88361 |
| Deposited On: | 29 Mar 2012 04:47 |
| Last Modified: | 29 Mar 2012 04:47 |
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