CATALYST FOR CROSS-COUPLING REACTION, AND PROCESS FOR PRODUCTION OF AROMATIC COMPOUND USING THE SAME
申请人:Nakamura Masaharu
公开号:US20110152523A1
公开(公告)日:2011-06-23
The present invention provides a process for efficiently producing an alkylated aromatic compound in good yield, by a cross-coupling reaction between an alkyl halide and an aromatic magnesium reagent. A process for producing an aromatic compound represented by Formula (1):
R—Ar′ (1)
wherein R is a hydrocarbon group, and Ar′ is an aryl group;
the process comprising:
reacting a compound represented by Formula (2):
R—X (2)
wherein X is a halogen atom, and R is as defined above, with a magnesium reagent represented by Formula (3):
Ar′—MgY (3)
wherein Y is a halogen atom, and Ar′ is as defined above, in the presence of a catalyst for cross-coupling reactions comprising an iron compound and a bisphosphine compound represented by Formula (4):
wherein Q is a divalent group derived from an aromatic ring by removing two hydrogen (H) atoms on adjacent carbon atoms; and each Ar is independently an aryl group.
本发明提供了一种高效产生烷基芳香化合物的方法,通过烷基卤化物和芳香镁试剂之间的交叉偶联反应,以良好的产率产生烷基芳香化合物的方法,所述方法包括:将由式(2)表示的化合物:R—X(2)其中X是卤素原子,R如上所定义,与由式(3)表示的镁试剂:Ar′—MgY(3)其中Y是卤素原子,Ar′如上所定义,在交叉偶联反应的催化剂存在下反应,所述催化剂包括一种铁化合物和一种由式(4)表示的双膦化合物:其中Q是通过去除相邻碳原子上的两个氢(H)原子从芳香环中衍生的二价基团;每个Ar都是独立的芳基团。