申请人:KURARAY CO., LTD.
公开号:US20160046549A1
公开(公告)日:2016-02-18
Provided is a simple and industrially advantageous method for producing 2,7-octadien-1-ol, in which an expensive palladium catalyst is recovered in high efficiency and the reaction rate per atom of palladium is enhanced. Specifically, provided is a method for producing 2,7-octadien-1-ol by subjecting butadiene and water to a telomerization in the presence of a palladium catalyst containing a water-soluble triarylphosphine having two or more sulfonate groups in the molecule and a palladium compound, a tertiary amine, and carbon dioxide, including a step of mixing the telomerization solution obtained by the telomerization with an organic solvent having a dielectric constant at 25° C. of 2 to 18, followed by carrying out phase separation in the presence of carbon dioxide, thereby obtaining 2,7-octadien-1-ol from an organic phase while recovering an aqueous phase including the palladium catalyst. By this production method, the selectivity for 2,7-octadien-1-ol is enhanced.
提供了一种简单且在工业上具有优势的生产2,7-辛二烯-1-醇的方法,其中昂贵的钯催化剂以高效率回收,并且增强了每个钯原子的反应速率。具体而言,提供了一种通过在存在包含具有两个或更多磺酸基团的水溶性三芳基膦和钯化合物、三级胺和二氧化碳的钯催化剂的情况下,使丁二烯和水经过缩聚反应来生产2,7-辛二烯-1-醇的方法,包括将通过缩聚反应获得的缩聚溶液与在25°C时具有介电常数为2到18的有机溶剂混合的步骤,然后在二氧化碳的存在下进行相分离,从而从有机相中获得2,7-辛二烯-1-醇,同时回收包括钯催化剂的水相。通过这种生产方法,对2,7-辛二烯-1-醇的选择性得到增强。