The effects of mixed CH 3 CN 9 H 2 O solvents on rates of aminolysis of ionized phenyl salicylate, PS Ϫ , reveal a nonlinear decrease in the nucleophilic second-order rate constants, (for aminolysis) with increase in the content of CH 3 CN until it becomes Ϸ 50%, ms k , n v/v. The values of remain a
Effect of mixed H2O−CH3CN solvent on intramolecular general base-catalyzed cleavage of ionized phenyl salicylate in the presence of DL-proline
✍ Scribed by Khan, M. Niyaz ;Arifin, Zainudin ;Yusoff, M. Rapandi
- Book ID
- 105589024
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 375 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0133-1736
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📜 SIMILAR VOLUMES
Nucleophilic second-order rate constants, k n ms , for the reactions of several primary and secondary amines with ionized phenyl salicylate (PS Ϫ ) show a nonlinear decrease with the increase in the content of CH 3 CN from 2 to Յ50% v/v in mixed aqueous solvent. The values of k n ms remain almost un
Pseudo first-order rate constants (kohl) for methanolysis of ionized phenyl salicylate (PS-) show a decrease of 3-5-fold with increase in CH,CN content from 2 to 60 or 70% (v/v) in mixed aqueous solvents containing 0.01 mol dm-3 LiOH and a constant content of CH30H. At 0.01 moldm-' KOH, the rate con