Kinetic analysis of oxidation of dopamine by sodium N-chlorobenzenesulphonamide in perchloric acid medium: A mechanistic approach

被引：0

作者：

Puttaswamy ^{[1
]}

Anuradha, TM

Mahadevappa, KL

机构：

[1] Bangalore Univ, Cent Coll, Dept Postgrad Studies Chem, Bangalore 560001, Karnataka, India

[2] Kempe Gowda Inst Med Sci, Dept Biochem, Bangalore 560004, Karnataka, India

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 2001年 / 40卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Kinetics of oxidation of dopamine (DPM) by sodium N-chlorobenzenesulphonamide (chloramine-B or CAB) in perchloric acid medium has been studied at 40 degreesC. The rate shows first order dependence in [CAB](o) fractional order in [DPM](o), and inverse fractional order in [H+]. The effects of dielectric constant and solvent isotope have been studied. Michaelis-Menten type of kinetics have been proposed and activation parameters for the rate determining step have been computed. A mechanism consistent with the observed kinetics is proposed and discussed.

引用

页码：514 / 518

页数：5

共 20 条

[1] Dielectric constants of some organic solvent-water mixtures at various temperatures [J].

Akerlof, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1932, 54 :4125-4139

[2]

Amis E.S, 1966, Solvent Effects on Reaction Rates and Mechanisms

[3]

BANERJI KK, 1983, J SCI IND RES INDIA, V46, P65

[4]

Bishop E., 1958, Talanta, V1, P197, DOI [DOI 10.1016/0039-9140(58)80034-X, 10.1016/0039-9140(58)80034-X]

[5] CHLORAMINE-T AND RELATED N-HALOGEN-N-METALLO REAGENTS [J].

CAMPBELL, MM ;

JOHNSON, G .

CHEMICAL REVIEWS, 1978, 78 (01) :65-79

[6]

CHRZASZCZEWSKA A, 1955, CHEM ABSTR, V49, P212

[7]

COLLINS CJ, 1970, ISOTOPE EFFECTS CHEM, P267

[8] INTERACTION OF N-BROMO-N-SODIOBENZENESULPHONAMIDE (BROMAMINE-B) WITH PARA-NITROPHENOXIDE ION [J].

HARDY, FE ;

JOHNSTON, JP .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1973, (06) :742-746

[9] OXIDATION OF SOME ALDOPENTOSES BY CHLORAMINE-B IN ALKALINE-MEDIUM - A KINETIC AND MECHANISTIC STUDY [J].

IYENGAR, TA ;

PUTTASWAMY ;

MAHADEVAPPA, DS .

CARBOHYDRATE RESEARCH, 1990, 204 :197-206

[10]

Laidler K.J., 1965, CHEM KINETICS, P474

← 1 2 →