Reactivities of osmium (VIII) towards some aldoses, amino sugars, and methylated sugars in alkaline medium

Authors
Sen Gupta, KK Begum, BA
Citation
Kk. Sen Gupta et Ba. Begum, Reactivities of osmium (VIII) towards some aldoses, amino sugars, and methylated sugars in alkaline medium, INT J CH K, 31(7), 1999, pp. 477-483
Citations number
33
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
ISSN journal
05388066 → ACNP
Volume
31
Issue
7
Year of publication
1999
Pages
477 - 483
Database
ISI
SICI code
0538-8066(199907)31:7<477:ROO(TS>2.0.ZU;2-F
Abstract
The kinetics of oxidation of some aldoses, amino sugars and methylated suga rs by osmium (VIII) have been studied spectrophotometrically in alkaline me dium. The reactions are first-order with respect to both [sugar] less than or equal to 9.0 x 10(-3) mol dm(-3) and [OH-] less than or equal to 10.0 x 10(-2) mol dm-3 but tends toward zero order with respect to each at higher concentration. Activation parameters of the reactions have been calculated and plausible reaction mechanisms have been suggested. (C) 1999 John Wiley & Sons. Inc.