2012年9月
2-O-Methyl- and 3,6-Di-O-methyl-cellulose from Natural Cellulose: Synthesis and Structure Characterization
BIOMACROMOLECULES
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- 巻
- 13
- 号
- 9
- 開始ページ
- 2760
- 終了ページ
- 2768
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/bm300754u
- 出版者・発行元
- AMER CHEMICAL SOC
For the first time, 2-O-methyl- (2MC) and 3,6-di-O-methyl-cellulose (36MC) were synthesized via 3-O-allyl- and 3-O-methyl-cellulose, respectively. Position 6 of 3-O-allyl- and 3-O-methyl-cellulose was protected with the 4-methoxytrityl groups. The reaction time and temperature were optimized to achieve a high regioselectivity at C-6 and to prevent the introduction of the 4-methoxytrityl group at C-2 of the polymer. It was found that the substituent at C-3 of 3-O-functionalized celluloses influenced the reactivity of the hydroxyl group at C-6. The structure was characterized by means of H-1 and C-13 NMR spectroscopy of the acetates of 2MC and 36MC. 2MC and 36MC were soluble in water and did not show thermoreversible gelation.
- リンク情報
- ID情報
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- DOI : 10.1021/bm300754u
- ISSN : 1525-7797
- Web of Science ID : WOS:000308508500017