Spectrophotometric determination of alkyl salicylate from the mixture of phenyl and alkyl salicylates by the use of the selective reactivity of phenyl salicylate toward secondary amines

Effects of mixed H2OCH3CN solvents on th

Effects of mixed H2OCH3CN solvents on the Brønsted coefficient for the intramolecular general base-catalyzed cleavage of ionized phenyl salicylate in the presence of primary and secondary amines

✍ M. Niyaz Khan; Z. Arifin; A. George; I. A. Wahab 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 148 KB 👁 1 views

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