Cover Image

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

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 r...

Full description

Saved in:
Bibliographic Details
Main Authors: Sim, Yoke Leng, Khan, Mohammad Niyaz
Format: Article
Published: SAGE Publications 2009
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/25658/
https://doi.org/10.3184/146867809X471117
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.25658
record_format eprints
spelling my.um.eprints.256582020-12-14T05:44:57Z http://eprints.um.edu.my/25658/ Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions Sim, Yoke Leng Khan, Mohammad Niyaz Q Science (General) QD Chemistry 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. SAGE Publications 2009 Article PeerReviewed 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 https://doi.org/10.3184/146867809X471117 doi:10.3184/146867809X471117
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Sim, Yoke Leng
Khan, Mohammad Niyaz
Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
description 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.
format Article
author Sim, Yoke Leng
Khan, Mohammad Niyaz
author_facet Sim, Yoke Leng
Khan, Mohammad Niyaz
author_sort Sim, Yoke Leng
title Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
title_short Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
title_full Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
title_fullStr Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
title_full_unstemmed Explanation of unusual behaviour in the acidic hydrolytic cleavage of N-(2′-methoxyphenyl)phthalimide under typical reaction conditions
title_sort explanation of unusual behaviour in the acidic hydrolytic cleavage of n-(2′-methoxyphenyl)phthalimide under typical reaction conditions
publisher SAGE Publications
publishDate 2009
url http://eprints.um.edu.my/25658/
https://doi.org/10.3184/146867809X471117
_version_ 1687394112699891712
score 13.209306

Similar Items