Kinetics And Mechanism Of The Cleavage Of N-Methoxyphthalimide (NMPT) In The Presence Of Buffers Of Tris (Hydroxymethyl)Amino-Methane (Tris) And 1,4-Diazabicyclo 2.2.2 Octane (DABCO)

Khan, M.N. and Ariffin, Azhar (2003) Kinetics And Mechanism Of The Cleavage Of N-Methoxyphthalimide (NMPT) In The Presence Of Buffers Of Tris (Hydroxymethyl)Amino-Methane (Tris) And 1,4-Diazabicyclo 2.2.2 Octane (DABCO). Reaction Kinetics and Catalysis Letters, 78 (1). pp. 193-200. ISSN 0133-1736

Full text not available from this repository. (Request a copy)
Official URL: http://download.springer.com/static/pdf/638/art%25...

Abstract

The magnitude of hydroxide ion-catalyzed second-order rate constant (k(OH)) for hydrolysis of N-methoxyphthalimide (NMPT) supports the conclusion that the rate law for pH-independent hydrolysis of N-hydroxyphthalimide (NHPTH) is rate = k(OH)[HO-][SH], where SH represents nonionized NHPTH. The second-order rate constants for the reactions of NMPT with DABCO and Tris are (59.7 +/- 6.9) x 10(-3) and (11.9 +/- 2.3) x 10(4) M-1 s(-1), respectively.

Item Type: Article
Additional Information: Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: n-methoxyphthalimide, amine buffers, kinetics, hydrolysis and aminolysis, acid-base catalysis, general acid, secondary-amines, stepwise mechanism, phthalimide, aminolysis, maleimide, parameters, tertiary, micelles
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: Miss Malisa Diana
Date Deposited: 03 Jul 2013 09:04
Last Modified: 27 Aug 2019 06:07
URI: http://eprints.um.edu.my/id/eprint/8039

Actions (login required)

View Item View Item