Sud, Abhishek ; Deshpande, Raj M. ; Chaudhari, Raghunath V. (2007) Kinetics of vinylation of 4'-bromoacetophenone with n-butyl acrylate using palladacycle catalyst Journal of Molecular Catalysis A: Chemical, 270 (1-2). pp. 144-152. ISSN 1381-1169
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S13811...
Related URL: http://dx.doi.org/10.1016/j.molcata.2007.01.035
Abstract
The kinetics of vinylation of 4'-bromoacetophenone (4'-BAP) with n-butyl acrylate (n-BA) has been studied using palladacycle catalyst precursor 1, in the presence of sodium acetate (NaOAc) as a base and tetrabutylammonium bromide (TBAB) as a promoter in N-methyl-2-pyrrolidinone (NMP) solvent. The rate was found to be first order with respect to 4'-BAP, fractional order with the catalyst, and first order tending to zero order with NaOAc concentration. The rates passed through a maximum with variation of TBAB and n-butyl acrylate concentrations. The rate data have been analyzed to propose an empirical model, which is in good agreement with the mechanism already established for Heck reactions using palladacycle catalysts.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Kinetics; Heck Reaction; Palladacycle |
| ID Code: | 8022 |
| Deposited On: | 25 Oct 2010 09:52 |
| Last Modified: | 28 May 2011 10:02 |
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