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.
本发明提供了一种通过烷基卤化物和芳基
镁试剂之间的交叉偶联反应高效产生烷基化芳香化合物的方法,产率良好。该方法涉及制备由以下式子表示的芳香化合物(1):R-Ar' (1),其中R是一个碳氢基团,Ar'是一个芳基基团;该方法包括:在交叉偶联反应催化剂的存在下,反应由以下式子表示的化合物(2):R-X (2),其中X是一个卤素原子,R如上所定义,与由以下式子表示的
镁试剂(3)反应:Ar'-MgY (3),其中Y是一个卤素原子,Ar'如上所定义;该交叉偶联反应催化剂包括一个
铁化合物和一个由以下式子表示的
双膦化合物(4):其中Q是通过去除相邻碳原子上的两个氢原子(H)而来自芳香环的二价基团;每个Ar都是一个芳基基团。