Global Patent Index - EP 0993440 A1

EP 0993440 A1 2000-04-19 - ETHERIFICATION REACTION OF AN AMINOPHENOL USING A PHASE TRANSFER SYSTEM

Title (en)

ETHERIFICATION REACTION OF AN AMINOPHENOL USING A PHASE TRANSFER SYSTEM

Title (de)

ETHERIFIZIERUNGSREAKTION VON EINEM AMINOPHENOL UNTER VERWENDUNG EINES PHASENTRANSFERSYSTEMS

Title (fr)

REACTION D'ETHERIFICATION D'UN AMINOPHENOL EN UTILISANT UN SYSTEME DE TRANSFERT DE PHASE

Publication

EP 0993440 A1 (FR)

Application

EP 98933705 A

Priority

  • FR 9801333 W
  • FR 9707871 A

Abstract (en)

[origin: FR2764888A1] The invention concerns a method for transforming an aminophenol, characterised in that it consists in a step whereby said aminophenol aniline function is in the form of am anilide function and said phenol is dissolved in a water-repellent and weakly polar solvent in the presence of an alkaline hydroxide, a phase transfer catalyst and a halide or an alkyl pseudo-halide. The invention is applicable to organic synthesis.

IPC 1-7 (main, further and additional classification)

C07C 269/06; C07C 217/82; C07C 231/12; C07B 41/04

IPC 8 full level (invention and additional information)

C07C 231/12 (2006.01); C07C 213/06 (2006.01); C07C 233/24 (2006.01); C07C 269/06 (2006.01); C07C 271/28 (2006.01); C07C 217/82 (2006.01)

CPC (invention and additional information)

C07C 213/06 (2013.01)

Combination set (CPC)

C07C 213/06 + C07C 217/82

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2764888 A1 19981224; FR 2764888 B1 20000505; AU 8343398 A 19990104; CN 1261346 A 20000726; EP 0993440 A1 20000419; JP 2002504922 A 20020212; WO 9858906 A1 19981230

INPADOC legal status


2002-05-22 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011106

2001-06-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010424

2000-04-19 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000111

2000-04-19 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE