论文部分内容阅读
以价廉易得的L -谷氨酸为原料 ,经酯化、高温热环合得L -焦谷氨酸酯 ,并对已有文献的后处理方法进行了改进 ,化学产率高于文献值 ,且产物不易消旋 .
L - glutamic acid, which is cheap and easy to be obtained, was used as raw material to synthesize L - pyroglutamate by thermal esterification and high temperature thermal cyclization. The existing methods of post - treatment were improved and the chemical yield was higher than that of the literature Value, and the product is not racemizable.