Solid phase asymmetric alkylation reactions using 2-imidazolidinone chiral auxiliary
作者:Quynh Pham Bao Nguyen、Jae Nyoung Kim、Taek Hyeon Kim
DOI:10.1016/j.tetlet.2009.01.127
日期:2009.7
A novel solid supported 2-imidazolidinone chiral auxiliary was prepared from O-benzyl-l-tyrosine and Wang resin. Asymmetric alkylation reactions in the solid phase proceeded with excellent stereoselectivities, which were even higher than those observed in the conventional solution phase method.
由O-苄基-1-酪氨酸和Wang树脂制备了新型的固体负载的2-咪唑啉酮手性助剂。固相中的不对称烷基化反应以优异的立体选择性进行,该立体选择性甚至高于常规溶液相方法中观察到的立体选择性。