申请人:Kondo Shoichi
公开号:US20100081808A1
公开(公告)日:2010-04-01
[Problems] To provide an efficient process for producing an optically active epoxy compound.
[Means For Solving Problems] The process for producing an optically active epoxy compound comprises asymmetrically epoxidizing an unsaturated compound with an oxidizing agent in the presence of an optically active titanium-salen complex, an optically active titanium-salalen complex or an optically active titanium-salan complex, with addition of a buffering agent or a buffer solution. The process can inhibit catalyst degradation, reduce the amount of the catalyst used in the reaction, and inhibit a by-product, compared with the prior art, and can provide an optically active epoxy compound in high chemical yield and optical yield and with high quality, and therefore is an industrially useful process.
[问题] 提供一种高效生产光学活性环氧化合物的过程。
[解决问题的方法] 生产光学活性环氧化合物的过程包括在存在光学活性钛-萨伦配合物、光学活性钛-萨来伦配合物或光学活性钛-萨兰配合物的情况下,加入缓冲剂或缓冲溶液,使用氧化剂不对称环氧化不饱和化合物。该过程可以抑制催化剂降解,减少反应中使用的催化剂量,并抑制副产物,与先前的技术相比,可以在高化学收率和光学收率以及高质量下提供光学活性环氧化合物,因此是一种有用的工业过程。