Synthesis of novel C2-symmetric chiral bis(oxazoline) ligands and their application in the enantioselective addition of diethylzinc to aldehydes
作者:Bin Fu、Da-Ming Du、Jianbo Wang
DOI:10.1016/j.tetasy.2003.11.006
日期:2004.1
Novel chiral bis(oxazoline) ligands bearing dibenzo[a,c]cycloheptadiene and a dihydroxy group have been synthesized and their application in the catalytic asymmetric addition of diethylzinc to aldehydes investigated. The enantioselectivities for the aromatic aldehydes are generally high and up to 96% ee was obtained.
合成了带有二苯并[ a,c ]环庚二烯和二羟基的新型手性双(恶唑啉)配体,并研究了它们在催化二乙基锌不对称加成醛中的应用。芳族醛的对映选择性通常很高,并且获得了高达96%的ee。