公开(公告)号：DE1618083B1

公开(公告)日：1970-11-26

申请号：DE1618083

申请日：1967-01-23

Applicant: BASF AG

Inventor： AURNHAMMER ROBERT DR ,  HERTEL OTTO DR ,  SCHLECHT HELMUT DR-ING

IPC: C07C255/49

公开(公告)号：DE2135087A1

公开(公告)日：1973-02-01

申请号：DE2135087

申请日：1971-07-14

Applicant: BASF AG

Inventor： AURNHAMMER ROBERT DR ,  LUDWIG WINFRIED DR

IPC: C07C303/08 ,  C07C309/86 ,  C07C143/70

Abstract: Title cpd., (I) pref. from benzene (II) and chlorosulphonic acid (III) wherein the starting materials in a molar ratio (II):(III) of 0.2-0.5:1, are added to a mixt. of (I), H2SO4 and (III) in a molar ratio of 0.3-2:0.3-2:1 resp. at 5-40 degrees C while simultaneously removing a corr. amt. of the reaction mixt. from the reactor system and working up in known manner.

公开(公告)号：DE1618082B1

公开(公告)日：1970-10-29

申请号：DE1618082

申请日：1967-01-23

Applicant: BASF AG

Inventor： AURNHAMMER ROBERT DR ,  HERTEL OTTO DR ,  SCHLECHT HELMUT DR-ING

IPC: C07C17/14 ,  C07C ,  C01B

公开(公告)号：DE1618157B1

公开(公告)日：1972-01-13

申请号：DE1618157

申请日：1967-05-10

Applicant: BASF AG

Inventor： AURNHAMMER ROBERT DR ,  SCHLECHT HELMUT DR ,  VILSMEIER WOLFGANG DR

IPC: C07C45/43 ,  C07C47/55 ,  C07C47/52

公开(公告)号：DE1768536B1

公开(公告)日：1971-05-19

申请号：DE1768536

申请日：1968-05-24

Applicant: BASF AG

Inventor： SCHLECHT HELMUT DR ,  AURNHAMMER ROBERT DR

IPC: C07C51/00 ,  C07C53/19 ,  C07C67/00

Abstract: An improved process for the continuous production of alpha -chloropropionic acid by reaction of propionic acid with chlorine in the presence of halides or acid halides of the elements phosphorus and sulfur at elevated temperature, the improvement consisting in carrying out the reaction in the presence of alpha -chloropropionic acid as solvent and distilling the resultant reaction mixture using the gas formed in the reaction as carrier gas. alpha -chloropropionic acid is used for the production of plant protection agents.