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http://nopr.niscpr.res.in/handle/123456789/16577| Title: | Effects of mixed CH3CN-H2O solvents on the rate of intramolecular general base-catalysed aminolysis of ionized phenyl salicylate |
| Authors: | Khan, Mohammad Niyaz Arifin, Zainudin Hanifiah, Mohammad Amin M Lasidek, Mohammad Noh George, Alex |
| Issue Date: | Aug-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Nucleophilic second-order rate constants, knms, for the reaction of n-butylamine, piperidine and pyrrolidine with ionized pheyl salicylate, PS-, show a nonlinear decrease with increase in the content of CH3CN in mixed aqueous solvents at < 60% (v/v)CH3CN. The values of knms remain almost unchanged with change in the content of CH3CN at > 60 % (v/v) CH3CN. Effects of mixed CH3CN-H2O solvents on pKa of leaving group, phenol, and protonated amine nucleophile are concluded to be the major factors affecting knms values. |
| Page(s): | 953-958 |
| Appears in Collections: | IJC-B Vol.38B(08) [August 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 38B(8) 953-958.pdf | 1.18 MB | Adobe PDF | View/Open |
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