申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US05208383A1
公开(公告)日:1993-05-04
A process for producing an aromatic acylation product from an aromatic compound, an olefin and carbon monoxide, which comprises the steps of: (a) reacting an olefin with carbon monoxide in the presence of hydrogen fluoride and boron trifluoride at a pressure of not more than 100 kg/cm.sup.2 G to prepare an acyl fluoride synthesis solution, (b) allowing the acyl fluoride synthesis solution to absorb boron trifluoride to form a complex of acyl fluoride and boron trifluoride, (c) subjecting an aromatic compound to an acylation reaction with a reaction mixture containing the complex of acyl fluoride and boron trifluoride, obtained in the step (b), to form a complex of boron trifluoride, hydrogen fluoride and an aromatic acylation compound, provided that the amount of the acyl fluoride in the complex of acyl fluoride and boron trifluoride is less than 1 mole per mole of the aromatic compound, and (d) separating the aromatic acylation compound from the complex formed in the step (c) by heating a reaction mixture obtained in the step (c).
一种从芳香化合物、烯烃和一氧化碳中制备芳香酰化产物的方法,包括以下步骤:(a)在氢氟酸和三氟化硼的存在下,在不超过100 kg / cm.sup.2 G的压力下,使烯烃与一氧化碳反应,制备酰氟合成溶液;(b)使酰氟合成溶液吸收三氟化硼,形成酰氟和三氟化硼的复合物;(c)使用含有在步骤(b)中获得的酰氟和三氟化硼复合物的反应混合物对芳香化合物进行酰化反应,形成三氟化硼、氢氟酸和芳香酰化合物的复合物,其中酰氟在酰氟和三氟化硼复合物中的量小于每摩尔芳香化合物的1摩尔;(d)通过加热在步骤(c)中获得的反应混合物,将芳香酰化合物与复合物分离。