^<13>C CP/MAS NMR Spectral Analysis of 6-O-Tosyl, 6-Deoxy-6-iodo, and 6-Deoxy Derivatives of N-Acetylchitosan in a Solid State
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概要
- 論文の詳細を見る
6-O-Tosyl (1, d. s. 0.94, 80% yield), 6-deoxy-6-iodo (2, d. s. 0.49, 86% yield) and 6-deoxy (3, d. s. 0.49, 50% yield) derivatives of N-acetylchitosan were prepared, and a ^<13>C CP/MAS NMR spectral analysis was performed because no suitable solvent for 3 was found. The ^<13>C signal for CH_3 at C-6 in 3 was detected at 18.9 ppm, and that for C-4 in 1-3 appeared at 72.2-72.7ppm, which is in a higher magnetic field than those (82.5-86.0ppm) in N-acetylchitosan, 6-O-(ethylthio), 6-O-(benzylthio)- and 6-O-(methylthio)-thiocarbonyl derivatives, chitosan, and chitin. This strongly suggests a different molecular conformation for 1-3.
- 社団法人日本農芸化学会の論文
- 1994-10-23
著者
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Zhang M
Wuhan Univ. Wuhan Chn
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HISAMORI Hiroki
Department of Agricultural Biochemistry and Biotechnology, Tottori University
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Yamada Takao
Department Of Agricultural Chemistry Faculty Of Agriculture Niigata University
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Zhang Min
Department Of Oral Pathology Kyushu Dental College
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Yamada T
Laboratory Of Applied Bioorganic Chemistry Division Of Life Science Graduate School Of Agricultural
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Hirano Shigehiro
Otsuka Pharmaceutics Co. Ltd.
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Yamada Toshihide
Otsuka Pharmaceutics, Co., Ltd.
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Zhang Min
Department Of Chemistry Nankai University
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Hisamori H
Department Of Agricultural Biochemistry And Biotechnology Tottori University
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Hisamori Hiroki
Department Of Agricultural Biochemistry And Biotechnology Tottori University
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Zhang Min
Department Of Agricultural Biochemistry And Biotechnology Tottori University
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