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Preparation of aldehydocelluloses from completely allylated methylcellulose, allylated ethylcellulose, and tri‐ O ‐allylcellulose by ozonization
Author(s) -
Kondo Tetsuo,
Ishizu Atsushi,
Nakano Junzo
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070350404
Subject(s) - aldehyde , chemistry , periodate , nuclear chemistry , cellulose , polymer chemistry , organic chemistry , catalysis
In order to prepare aldehydocelluloses which are more stable than periodate‐oxidized cellulose, completely allylated methylcellulose, allylated ethylcellulose, and tri‐ O ‐allylcellulose were subjected to ozonization followed by reduction with dimethylsulfide. The aldehydocelluloses thus prepared without any degradation showed the presence of many free aldehyde groups by IR and 13 C‐NMR spectrometries, as well as the presence of hydroxyl groups which were produced by deallylation. The degree of substitution (DS) by aldehyde group was 0.6 for the products from both completely allylated methylcellulose and tri‐ O ‐allylcellulose, and 0.02 for that from allylated ethylcellulose.