The kinetics of periodate oxidation of carbohydrates: a calorimetric approach

Citation
F. Sussich et A. Cesaro, The kinetics of periodate oxidation of carbohydrates: a calorimetric approach, CARBOHY RES, 329(1), 2000, pp. 87-95
Citations number
20
Categorie Soggetti
Agricultural Chemistry","Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
CARBOHYDRATE RESEARCH
ISSN journal
00086215 → ACNP
Volume
329
Issue
1
Year of publication
2000
Pages
87 - 95
Database
ISI
SICI code
0008-6215(20001020)329:1<87:TKOPOO>2.0.ZU;2-I
Abstract
A calorimetric approach is described for analysing the kinetics of periodat e oxidation on a series of monosaccharidic substrates. Rate constants at se veral temperatures were calculated from the calorimetric decay curves that are proportional to the rate of conversion. Arrhenius plots provided the ac tivation parameters for the various carbohydrates and a linear correlation was found between the values of enthalpy and entropy of activation. The dep endence of the values of kinetic rates on stereochemistry is interpreted in terms of conformational probability of the reactive state. The suitability of the calorimetric method to track the kinetic process of slow reactions is emphasised, in particular its ability to monitor, directly and continuou sly, the course of the reaction. (C) 2000 Elsevier Science Ltd. All rights reserved.