Amphiphilic carbohydrate-based mesogens .12. High-yield synthesis of mesogenic 1-O-alkanoyl-D/L-xylitols

被引：0

作者：

Dahlhoff, WV ^{[1
]}

Radkowski, K ^{[1
]}

Dierking, I ^{[1
]}

Zugenmaier, P ^{[1
]}

机构：

[1] TECH UNIV CLAUSTHAL,INST PHYS CHEM,D-38678 CLAUSTHAL ZELLERF,GERMANY

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1996年 / 51卷 / 09期

关键词：

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The equilibrium mixture of 1,2:3,4- and 1,3:2,4-di-O-ethylboranediyl-D/L-xylitol 1 and 1' obtained on reaction of three equivalents of xylitol with two equivalents of triethylboroxin, reacts with alkanoyl chlorides (heptanoyl-dodecanoyl) to give equilibrium mixtures of the O-ethylboranediyl protected 1-O-alkanoyl-D,L-xylitols 2,2' after vacuum distillation. Deprotection of the latter affords the title amphiphilic esters 3 which melt to give the smectic A liquid-crystalline phase.

引用

页码：1229 / 1234

页数：6

共 41 条

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