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一、前言近年来,人们合成了约150种均相手性膦铑络合催化剂,其中应用于不对称催化氢化去氢氨基酸的研究居多。这些均相催化剂由于贵金属铑损失严重,回收困难,因而在工业生产中受到限制。将均相催化剂键联到高分子载体上是克服上述缺
I. Introduction In recent years, about 150 kinds of homogeneous phosphine and rhodium complex catalysts have been synthesized, and most of them are used in the asymmetric catalytic hydrogenation of dehydro-amino acids. These homogeneous catalysts are limited in industrial production due to the serious loss of rhodium metal and difficult recovery. Homogenizing the catalyst to the polymer carrier is to overcome the above shortcomings