Loading...

Systems designed with an ionic liquid and molecular solvents to investigate the kinetics of an SNAr reaction

Salari, H. (Hadi) ; Sharif University of Technology

973 Viewed
  1. Type of Document: Article
  2. DOI: 10.3184/146867813X13632857557572
  3. Abstract:
  4. The microscopic features of binary solvent systems formed by molecular solvents (methanol, ethanol, 2-methylpropan-2-ol, water, pyridine, acetonitrile, 1-propanol, 2-propanol, dimethylformamide) and the ionic liquid ([bmim]BF4) as cosolvent were used to select mixed solvents with particular characteristics. Molecular-microscopic solvent parameters corresponding to these binary mixtures were utilised to study the kinetics of the nucleophilic substitution reaction between 2-chloro-3,5-dinitropyridine and aniline to investigate and compare the effects of the solvents on a model chemical reaction. For these mixtures, the solvation behaviour is dominated by both the dipolarity/ polarisability and hydrogen bonding interactions of the media. In these solutions, the rate constants of the reaction decrease with the mole fraction of ionic liquid
  5. Keywords:
  6. SNAR ; Aromatic nucleophilic substitution reaction ; Binary mixture ; Ionic liquid ; Solvent
  7. Source: Progress in Reaction Kinetics and Mechanism ; Volume 38, Number 2 , 2013 , pp. 157-170
  8. URL: http://www.ingentaconnect.com/content/stl/prk/2013/00000038/00000002/art00004#expand/collapse