公开(公告)号：EP2729451A1

公开(公告)日：2014-05-14

申请号：EP12738052.5

申请日：2012-07-05

申请人： BASF SE

发明人： BETTE, Virginie ,  DUST, Matthias ,  PETZOLDT, Jochen ,  MEISENBURG, Uwe ,  MISSKE, Andrea ,  BERGMANN, Hermann

IPC分类号： C07D233/32 ,  C07D233/34 ,  C07C67/03 ,  C07C67/08 ,  C07C69/54

CPC分类号： C07D233/32 ,  C07D233/34

摘要： The invention relates to a method for producing (meth)acrylic acid esters by esterification of (meth)acrylic acid or transesterification of at least one (meth)acrylic acid ester with at least one compound that contains at least one OH group, in the presence of a heterogeneous catalyst that contains at least one inorganic salt, the esterification or transesterification taking place in the presence of 300 to 3000 ppm water relative to the total weight of the reaction mixture.

公开(公告)号：EP2729451B1

公开(公告)日：2016-06-22

申请号：EP12738052.5

申请日：2012-07-05

申请人： BASF SE

发明人： BETTE, Virginie ,  DUST, Matthias ,  PETZOLDT, Jochen ,  MEISENBURG, Uwe ,  MISSKE, Andrea ,  BERGMANN, Hermann

IPC分类号： C07D233/32 ,  C07D233/34 ,  C07C67/03 ,  C07C67/08 ,  C07C69/54

CPC分类号： C07D233/32 ,  C07D233/34

公开(公告)号：EP1648852B1

公开(公告)日：2009-06-17

申请号：EP04740986.7

申请日：2004-07-14

申请人： BASF SE

发明人： MAASE, Matthias ,  BERTLEIN, Gerhard ,  GANZ, Holger ,  DUST, Matthias

IPC分类号： C07C51/58 ,  C07C63/10

CPC分类号： C07C51/58 ,  C07C63/04

摘要： The invention relates to a method for producing arylcarboxylic acid chlorides (I) substituted at least once by aryl (C1-C20) and/or halogen consisting, at a first stage thereof, in reacting an aromatic compound (II) substituted at least once by alkyl (C1-C20) and/or halogen with CCl4 in the presence of a Friedel-craft catalyst in such a way that corresponding trichlormethylated aromatic compounds (III) at least once substituted by aryl (C1-C20) and/or halogen are obtainable. At a second stage, the trichlormethylated aromatic compound (III) is treated with water or a proton acid in the presence of a catalyst, whereby making it possible to obtain an arylcarboxylic acid chloride (I). In the preferred embodiment, said trichlormethylated aromatic compound (III) is not isolated in the form of an intermediate product and, at the second stage used dissolved in the solvent of the first stage.