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- Title
Polyethylene Glycols as Efficient Media for Decarboxylative Nitration of α,β-Unsaturated Aromatic Carboxylic Acids by Ceric Ammonium Nitrate in Acetonitrile Medium: A Kinetic and Mechanistic Study.
- Authors
Ramesh, K.; Shylaja, S.; Rajanna, K. C.; Reddy, P. Giridhar; Saiprakash, P. K.
- Abstract
Polyethylene glycols (PEGs) were found to be efficient media for decarboxylative nitration of α,β-unsaturated aromatic carboxylic acids by ceric ammonium nitrate (CAN) in acetonitrile to give β-nitrostyrene derivatives. Kinetics of the reaction exhibited second order kinetics with a first order dependence on [CAN] and [substrate]. Reactions were too sluggish to be studied in the absence of PEG; therefore detailed kinetics were not taken up. Reaction times were reduced from 24 hrs to few hours. The catalytic activity was found to be in the increasing order PEG-300 > PEG-400 > PEG-600 > PEG-200. Mechanism of PEG-mediated reactions was explained by Menger-Portnoy's scheme as applied in micellar kinetics.
- Subjects
POLYETHYLENE glycol; DECARBOXYLATION; NITRATION; AROMATIC compounds; CARBOXYLIC acids; AMMONIUM nitrate; CHEMICAL reactions
- Publication
Advances in Physical Chemistry, 2013, p1
- ISSN
1687-7985
- Publication type
Article
- DOI
10.1155/2013/146585