公开(公告)号：DK157672C

公开(公告)日：1990-07-16

申请号：DK569681

申请日：1981-12-22

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：DK412685D0

公开(公告)日：1985-09-11

申请号：DK412685

申请日：1985-09-11

Applicant: BASF AG

Inventor： BOTT KASPAR ,  BOEHM WALTER ,  FRITZ GERHARD ,  MARTIN CHRISTOPH ,  SIEGEL HARDO

IPC: C12P7/62 ,  C07C59/08 ,  C07C67/00 ,  C07C67/08 ,  C07C69/68 ,  C07C

公开(公告)号：BR8108547A

公开(公告)日：1982-10-19

申请号：BR8108547

申请日：1981-12-30

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：IN155195B

公开(公告)日：1985-01-12

申请号：IN1392CA1981

申请日：1981-12-07

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00 ,  C07C53/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：AU539818B2

公开(公告)日：1984-10-18

申请号：AU7906681

申请日：1981-12-30

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：ZA8109006B

公开(公告)日：1982-12-29

申请号：ZA8109006

申请日：1981-12-30

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C67/00 ,  C07C

CPC classification number: C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C59/68

公开(公告)号：HU188736B

公开(公告)日：1986-05-28

申请号：HU398781

申请日：1981-12-29

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：DK412685A

公开(公告)日：1986-03-13

申请号：DK412685

申请日：1985-09-11

Applicant: BASF AG

Inventor： BOTT KASPAR ,  BOEHM WALTER ,  FRITZ GERHARD ,  MARTIN CHRISTOPH ,  SIEGEL HARDO

IPC: C12P7/62 ,  C07C59/08 ,  C07C67/00 ,  C07C67/08 ,  C07C69/68 ,  C07C

公开(公告)号：CA1182473A

公开(公告)日：1985-02-12

申请号：CA391845

申请日：1981-12-09

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or .alpha.-2,4-dichloro- or .alpha.-2-methy1-4-chlorophenoxypro-pionic acid by reacting phenoxyacetic or 2-methylphenoxy-acetic acid or .alpha.-phenoxypropionic or .alpha.-2-methylphenoxy-propionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or .alpha.-phenoxypro-pionic or .alpha.-2-methylphenoxypropionic acid in water at from 30 to 70.degree.C at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro-or 2-methyl-4-chloro-phenoxyacetic acid or .alpha.-2,4-dichloro-or .alpha.-2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

公开(公告)号：DD201772A5

公开(公告)日：1983-08-10

申请号：DD23589881

申请日：1981-12-17

Applicant: BASF AG

Inventor： HUSSLEIN GERD ,  HAMPRECHT GERHARD ,  KOENIG KARL-HEINZ ,  BOEHM WALTER ,  GAENG MANFRED

IPC: C07C59/68 ,  C07C51/00 ,  C07C51/363 ,  C07C51/367 ,  C07C59/70 ,  C07C67/00

Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.