Bulletin of the Chemical Society of Japan p. 2225 - 2232 (1993)
Update date:2022-08-16
Topics:
Kaida, Yuriko
Okamoto, Yoshio
The optical resolving ability of two types of regioselectively carbamoylated cellulose and amylose with 3,5-dimethylphenyl and 3,5-dichlorophenyl isocyanates was evaluated.One had 3,5-dimethylphenylcarbamate groups at the 2 and 3 positions and a 3,5-dichlorophenylcarbamate group at the 6 position; the other had 3,5-dichlorophenylcarbamate groups at the 2 and 3 positions and a 3,5-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- or 3,5-dichlorophenylcarbamate groups at the 2,3 and 6 positions were also examined.
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