Investigation by PMR spectroscopy of the reactivities of the acetate groups in the saponification of polysaccharide triacetates

Autor:	A. Zh. Sultanov, Yu. T. Tashpulatov, T.I. Usmanov, F. T. Abdullaev
Rok vydání:	1997
Předmět:	chemistry.chemical_classification Plant Science General Chemistry Polysaccharide Chloride General Biochemistry Genetics and Molecular Biology Cellulose triacetate chemistry.chemical_compound chemistry medicine Organic chemistry Cellulose Spectroscopy Amylose triacetate Saponification medicine.drug
Zdroj:	Chemistry of Natural Compounds. 33:530-533
ISSN:	1573-8388 0009-3130
DOI:	10.1007/bf02254795
Popis:	The reactivities of the acetate groups in the saponification of cellulose triacetate (CTA) and amylose triacetate (ATA) have been characterized for the first time by analyzing the structures of the reaction products by PMR spectroscopy in solution. To identify the signals of the acetate group protons we used the method of blocking the free OH groups with acetyl-d3 chloride. The kinetic constants were evaluated:K6=K3=K2 for CTA, andK6>K2>K3 for ATA in the saponification reaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fdf06e7ba90d657ec7b8e3a2b5e5e5e5 https://doi.org/10.1007/bf02254795 Zobrazit plný text záznamu Full text from SpringerLink