[Problem] To provide a production method of optically active epoxy compound, and a complex used for the production method and a production method of the complex.
[Means for solving the problem] The skeleton that is necessary for expressing a high catalyst activity of optically active titanium salan complex of formulae (1) and (1′)
and the substituent that is useful therefor and the position of the substituent are identified, and it is found that optically active epoxy compounds can be produced with a high enantioselectivity and a high chemical yield compared with a case where the prior optically active titanium salan complex is used. The production method comprises subjecting a prochiral compound (formula (4), (5) or (6)) having carbon-carbon double bond in the molecule to asymmetric epoxidation to produce an optically active epoxy compound (formula (7), (8) or (9)). The present invention relates also to a complex used for the production method and a production method of the complex.
[问题] 提供一种光学活性环氧化合物的生产方法,以及用于该生产方法的复合物和复合物的生产方法。
[解决问题的方法] 确定表达式(1)和(1')的光学活性
钛萨兰配合物具有高催化活性所必需的骨架和有用的取代基及其位置,并发现与使用先前的光学活性
钛萨兰配合物相比,可以以高对映选择性和高
化学收率生产光学活性环氧化合物。该生产方法包括将具有分子中碳-碳双键的非手性化合物(式(4),(5)或(6))经过不对称环氧化反应,产生光学活性环氧化合物(式(7),(8)或(9))。本发明还涉及用于生产方法的复合物和复合物的生产方法。