Novozym 435-catalyzed kinetic resolution of β-allenols. A facile route for the preparation of optically active β-allenols or allenyl acetates
作者:Daiwang Xu、Zhan Lu、Zuyi Li、Shengming Ma
DOI:10.1016/j.tet.2004.09.103
日期:2004.12
A variety of optically active β-allenols and β-allenyl acetates were synthesized via the Novozym 435-mediated kinetic resolution of racemic β-allenols. A dramatic solvent effect was observed for the stereoselectivity. The scope of the substrates and the effect of the concentration and temperature on the reaction were also investigated.
通过Novozym 435介导的外消旋β-烯醇的动力学拆分,合成了多种旋光性β-烯醇和β-烯丙基乙酸酯。对于立体选择性观察到了显着的溶剂作用。还研究了底物的范围以及浓度和温度对反应的影响。