申请人:Tanaka Kazuo
公开号:US20070179304A1
公开(公告)日:2007-08-02
The invention provides a process for producing a chroman compound represented by formula (1), characterized in that the process includes allowing a phenol, an unsaturated compound, and a formaldehyde to react in the absence of catalyst and in the presence of water in an amount by mole 1 to 10 times that of the phenol. According to the present invention, a high-purity chroman compound can be produced in the absence of catalyst and under mild conditions. In addition, the invention provides an industrial means for producing the compound, without using a large amount of an acid or a base serving as a reaction promoter or a catalyst, which would otherwise cause side reactions, apparatus corrosion, etc.
本发明提供了一种生产由式(1)表示的色酮化合物的方法,其特征在于,该方法包括在水的存在下,使酚、不饱和化合物和甲醛在无催化剂存在下反应,其中水的摩尔量为酚的1到10倍。根据本发明,在无催化剂和温和条件下可以生产高纯度的色酮化合物。此外,本发明提供了一种工业生产该化合物的手段,而不使用大量的酸或碱作为反应促进剂或催化剂,否则会引起副反应、设备腐蚀等问题。