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...
Saved in:
Main Authors: | , |
---|---|
Format: | Article |
Published: |
SAGE Publications
2009
|
Subjects: | |
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 |