Regio- and stereoselective cyclopolymerization of 1,2:4,5-dianhydro-3-O-methyl-xylitol leading to a novel polycarbohydrate of (2→5)-1,4-anhydro-3-O-methyl-pentitol

被引：0

作者：

Satoh, T

Shibata, K

Yokota, K ^{[1
]}

Kakuchi, T

机构：

[1] Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 060, Japan

[2] Hokkaido Univ, Grad Sch Environm Earth Sci, Div Biosci, Sapporo, Hokkaido 060, Japan

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1999年 / 20卷 / 02期

关键词：

D O I：

10.1002/(SICI)1521-3927(19990201)20:2<55::AID-MARC55>3.0.CO;2-Z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

(2-->5)-1,4-Anhydro-3-O-methyl-pentitol, which is a novel carbohydrate polymer without an anomeric linkage, was synthesized by cationic cyclopolymerization of 1,2: 4,5-dianhydro-3-O-methylxylitol. When BF3 . OEt2 was used as the initiator, soluble polymers were obtained in 28 to 50% yield. These polymers have number-average molecular weights of 1150 to 2340 corresponding to an average degree of polymerization of 8.8 to 18.0. It was confirmed by C-13 NMR that the resulting polymer mainly consists of 1,4-anhydro-3-O-methyl-DL-arabinitol units.

引用

页码：55 / 58

页数：4

共 50 条

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