Hydrolysis of acetals in water under hydrothermal conditions |
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| Authors: | Kimihiko SatoTsutomu Kishimoto Minoru MorimotoHiroyuki Saimoto Yoshihiro Shigemasa |
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| Institution: | a Industrial Research Institute of Tottori Prefecture, 7-1-1 Wakabadai-minami, Tottori 689-1112, Japan
b Department of Materials Science, Faculty of Engineering, Tottori University, Koyama, Tottori 680-8552, Japan |
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| Abstract: | A simple method for the hydrolysis of acetals and ketals was accomplished in neutral water or aqueous media by hydrothermal treatment without using acidic reagents. The deacetalization reaction was effectively accelerated in the presence of calcium chloride. Because no acidic catalysts were employed, neutralization of the reaction mixture was not necessary after the reaction. This sequence was successfully applied to the hydrolysis of chitosan, a biodegradable polyaminosaccharide. |
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| Keywords: | acetals ketals hydrolysis deprotection chitosan |
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