Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions

Sim, Yoke Leng and Khan, Mohammad Niyaz (2009) Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions. Progress in Reaction Kinetics and Mechanism, 34 (4). pp. 347-359. ISSN 1468-6783, DOI https://doi.org/10.3184/146867809X471117.

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Official URL: https://doi.org/10.3184/146867809X471117

Abstract

Pseudo-first-order rate constants, kobs, for hydrolysis of N-(2′-methoxyphenyl)- phthalimide (1) show a nonlinear decrease with the increase in [HCl] over the range 5×10-3 - 1:0M at 2:0×10-4M 1, 1.0M ionic strength (μ, by NaCl) and 35°C. White fluffy precipitates have been found to appear into the reaction mixtures under such conditions, not at reaction time t = 0 but during the course of reaction. Similar observations have been found at 3:0×10-4M 1. These rather unusual observations have been found to be due to a special NaCl salt effect on kobs. © 2009 Science Reviews 2000 Ltd.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: N-(2'-methoxyphenyl)phthalimide; acidic hydrolysis; NaCl effect; kinetics; mechanism
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Dec 2020 05:44
Last Modified: 14 Dec 2020 05:44
URI: http://eprints.um.edu.my/id/eprint/25658

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