公开(公告)号：AT433951T

公开(公告)日：2009-07-15

申请号：AT04740986

申请日：2004-07-14

Applicant: BASF SE

Inventor： MAASE MATTHIAS ,  BERTLEIN GERHARD ,  GANZ HOLGER ,  DUST MATTHIAS

IPC: C07C51/58 ,  C07C63/10

Abstract: A process for preparing mono- or poly-C1-C20-alkyl- and/or -halogen-substituted arylcarbonyl chlorides (I), by, in a first stage, reacting a mono- or poly-C1-C20-alkyl- and/or -halogen-substituted aromatic (II) with CCl4 in the presence of a Friedel-Crafts catalyst to give the corresponding mono- or poly-C1-C20-alkyl- and/or -halogen-substituted trichloromethylated aromatic (III), and, in a second stage, treating the trichloromethylated aromatic (III) with water or a protic acid in the presence of a catalyst to obtain the arylcarbonyl chloride (I). In a particularly preferred embodiment, the trichloromethylated aromatic (III) is not isolated as an intermediate and is used in the second stage dissolved in the solvent of the first stage.

公开(公告)号：DE502004009621D1

公开(公告)日：2009-07-30

申请号：DE502004009621

申请日：2004-07-14

Applicant: BASF SE

Inventor： MAASE MATTHIAS ,  BERTLEIN GERHARD ,  GANZ HOLGER ,  DUST MATTHIAS

IPC: C07C51/58 ,  C07C63/10

Abstract: A process for preparing mono- or poly-C1-C20-alkyl- and/or -halogen-substituted arylcarbonyl chlorides (I), by, in a first stage, reacting a mono- or poly-C1-C20-alkyl- and/or -halogen-substituted aromatic (II) with CCl4 in the presence of a Friedel-Crafts catalyst to give the corresponding mono- or poly-C1-C20-alkyl- and/or -halogen-substituted trichloromethylated aromatic (III), and, in a second stage, treating the trichloromethylated aromatic (III) with water or a protic acid in the presence of a catalyst to obtain the arylcarbonyl chloride (I). In a particularly preferred embodiment, the trichloromethylated aromatic (III) is not isolated as an intermediate and is used in the second stage dissolved in the solvent of the first stage.