公开(公告)号：DE2734207A1

公开(公告)日：1979-02-08

申请号：DE2734207

申请日：1977-07-29

Applicant: BASF AG

Inventor： EBERHARD PETER DIPL CHEM DR ,  HICKMANN ECKHARD DIPL CHEM DR

IPC: C07C59/84 ,  C07C69/95 ,  C07C65/20

Abstract: Prodn. of alpha-ketocarboxylic acid derivs. of formula R1COR2 (R1 is opt. 1-30C aryl or (cyclo)alkyl, R2 is carboxylic acid deriv. gp.) (I) comprises oxidn. of corresp. hydroxy cpds (II) with Cl2 or Br2 at 180 degrees C. The solvent is pref. a halogenated hydrocarbon, specif. chlorobenzene and reaction is opt. in presence of light and/or a radical former. Acid derivs. used are esters, nitriles amides or halides, esp. 1-10C alkyl esters. (I) are intermediates for plant-protection agents and also useful as photoinitiators. The method is esp. used for arylglyoxylic acid esters. Good yields are achieved (no significant replacement of OH by halogen) without the need for expensive or polluting oxidising agents.

公开(公告)号：DE2651226A1

公开(公告)日：1978-05-18

申请号：DE2651226

申请日：1976-11-10

Applicant: BASF AG

Inventor： KOVACS JENOE DIPL CHEM DR ,  MARX MATTHIAS DIPL CHEM DR ,  SPOOR HERBERT DIPL CHEM DR ,  EBERHARD PETER DIPL CHEM DR

IPC: C08L79/08 ,  C09D5/25 ,  C08J3/06 ,  C09J3/16

公开(公告)号：DE2651194A1

公开(公告)日：1978-05-18

申请号：DE2651194

申请日：1976-11-10

Applicant: BASF AG

Inventor： KOVACS JENOE DIPL CHEM DR ,  MARX MATTHIAS DIPL CHEM DR ,  EBERHARD PETER DIPL CHEM DR ,  JUNG HANS DIPL ING DR

IPC: C08L77/00 ,  C08L33/00 ,  C08L33/02 ,  C08L79/08 ,  C09D5/25 ,  C09D179/08 ,  C09J179/08 ,  H01B3/30 ,  C08J3/06 ,  C08J3/14 ,  C09J3/16

公开(公告)号：DE2932712A1

公开(公告)日：1981-03-26

申请号：DE2932712

申请日：1979-08-13

Applicant: BASF AG

Inventor： HUPFER LEOPOLD DIPL CHEM DR ,  GRAF FRITZ DIPL CHEM DR ,  EBERHARD PETER DIPL CHEM DR ,  WICKENHAEUSER GERHARD DIPL ING ,  SCHLUETER LOTHAR DIPL ING DR

IPC: C07D233/58 ,  C07D233/54

公开(公告)号：DE2917381A1

公开(公告)日：1980-11-13

申请号：DE2917381

申请日：1979-04-28

Applicant: BASF AG

Inventor： EBERHARD PETER DIPL CHEM DR ,  HUPFER LEOPOLD DIPL CHEM DR ,  GRAF FRITZ DIPL CHEM DR ,  SCHULTE WOLFGANG DIPL CHEM DR

IPC: C07D233/54 ,  C07D233/58