On July 13, 1999, Cheng, Jianjun; Deming, Timothy J. published an article.COA of Formula: C10H12N2O The title of the article was Screening of Optically Active Nickel Initiators for Enantioasymmetric Polymerization of γ-Benzyl Glutamate-N-Carboxyanhydride. And the article contained the following:
The use of chiral pyridinyl oxazoline ligands in nickel initiators to enantioasym. polymerize γ-benzyl glutamate N-carboxyanhydride (I) was studied. Catalysts prepared from 4,4-dimethyl-(2-pyridinyl)-2-oxazoline and Ni(COD) displayed I polymerization activity which was virtually identical to that of bipyridine-Ni(COD). The kinetic selectivity for the D-antipode displayed by catalyst prepared from (4S)-4-tert-butyl-(2-pyridinyl)-2-oxazoline in homopolymerization was also displayed in polymerization of the racemate. The selectivity of the catalysts was highly sensitive to substitution on the 4 position of the oxazoline ring. The experimental process involved the reaction of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine(cas: 109660-12-0).COA of Formula: C10H12N2O
The Article related to oxazoline nickel catalyst polymerization benzyl glutamate, enantioasym polymerization benzyl glutamate nickel catalyst, polybenzyl glutamate preparation catalyst nickel, pyridine nickel catalyst polymerization benzyl glutamate and other aspects.COA of Formula: C10H12N2O