| Abstract: | New optically active monomers L -α-(N-p-acryloxybenzoyl)alanine ethyl esters] (I) and their polymers were synthesized. The title monomers (I) were prepared by the reaction of 1-p-acryloxybenzoyloxy-4-chlorobenzotriazoles (II) with L -alanine ethyl ester hydrochloride, by aminolysis of the active monoester. The new typical active ester (II) was synthesized by the N-hydroxy compound active-ester methods in excellent yield. Before the synthesis of the optically active monomers was carried out, a model study of the aminolysis of the two active esters was performed. |
