久久www成人免费直播,久青青视频在线观看久,国产午夜精品久久久久婷,精品久久久久国产免费,国产乱子伦xxxx,国产香蕉精品视频天天看,精品人妻少妇嫩草a,特级毛片打开直接看,手机在线精品国产看片,性欧美午夜高清在线观看


Achievements


The achievement of "Development and Application of Key Technologies for the Production of Phenylphosphine Derivatives" is awarded the second prize of Henan Science and Technology Invention Award in 2019. A new process for selectively cutting carbon phosphine bonds to produce a series of phenyl phosphine derivatives by the "one-pot method" was developed, and the influence of the catalyst choice on yield during the reaction of the series of phenyl phosphine derivatives had been thoroughly studied. The key technical problems of poor stability of organic phosphine compounds and difficulty in industrialization had been solved, with significant economic and social benefits.