Optical Resolution on Regioselectively Carbamoylated Cellulose and Amylose with 3,5-Dimethylphenyl and 3,5-Dichlorophenyl Isocyanates
作者:Yuriko Kaida、Yoshio Okamoto
DOI:10.1246/bcsj.66.2225
日期:1993.8
5-dimethylphenylcarbamate group at the 6 position. In cellulose derivatives, the side chains at the 2,3, and 6 positions seem to interact complicatedly with racemates. On the other hand, in the amylose derivatives, the side chains at the 2 and 3 positions may mainly influence the chiral recognition ability. The optical resolving abilities of the cellulose and amylose derivatives having irregularly either 3,5-dimethylphenyl-
评估了两种区域选择性氨基甲酰化纤维素和直链淀粉与 3,5-二甲基苯基和 3,5-二氯苯基异氰酸酯的光学分辨能力。一种在2位和3位具有3,5-二甲基苯基氨基甲酸酯基团,在6位具有3,5-二氯苯基氨基甲酸酯基团;另一个在2和3位具有3,5-二氯苯基氨基甲酸酯基团,在6位具有3,5-二甲基苯基氨基甲酸酯基团。在纤维素衍生物中,2,3 和 6 位的侧链似乎与外消旋体相互作用复杂。另一方面,在直链淀粉衍生物中,2和3位的侧链可能主要影响手性识别能力。在 2,3, 3,5-二甲基苯基-或 3,5-二氯苯基氨基甲酸酯基团不规则的纤维素和直链淀粉衍生物的光学分辨能力,