Global Patent Index - EP 0900189 A4

EP 0900189 A4 2000-01-26 - 2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE AND PROCESS OF PREPARING HYDROXYARYLALDEHYDES THEREFROM

Title (en)

2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE AND PROCESS OF PREPARING HYDROXYARYLALDEHYDES THEREFROM

Title (de)

2-HYDROXY-5-ALKYL-BETA-METHYLSTYROL UND VERFAHREN UM DARAUS HYDROXYARYLALDEHYDE HERZUSTELLEN

Title (fr)

2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE ET PROCEDE DE PREPARATION D'HYDROXYARYLALDEHYDES A PARTIR DE CETTE SUBSTANCE

Publication

EP 0900189 A4 (EN)

Application

EP 97920075 A

Priority

  • US 9705503 W
  • US 63586596 A
  • US 67012796 A

Abstract (en)

[origin: WO9740004A1] Process for making an alkyl-substituted salicylaldehyde wherein the alkyl substitution amounts to at least 3 alkyl carbon atoms per molecule, and preferably not more than 25, comprising ozonolizing an alkyl-substituted 2-hydroxy beta-methylstyrene wherein said alkyl substitution amounts to at least 3 carbon atoms per molecule. Upon oximation of the products, useful metal extractants are produced, particularly for the extraction of copper.

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

C07C 47/52; C07C 35/08; C07C 39/06; C07C 39/18; C07C 41/00; C07C 45/00; C07C 69/76

IPC 8 full level (invention and additional information)

C07C 37/48 (2006.01); C07C 39/19 (2006.01); C07C 41/16 (2006.01); C07C 45/40 (2006.01); C07C 45/67 (2006.01); C07C 67/293 (2006.01); C07C 69/017 (2006.01)

CPC (invention and additional information)

C07C 39/19 (2013.01); C07C 37/00 (2013.01); C07C 37/055 (2013.01); C07C 41/16 (2013.01); C07C 45/40 (2013.01); C07C 45/673 (2013.01); C07C 67/293 (2013.01); C07C 69/157 (2013.01)

Combination set (CPC)

  1. C07C 45/40 + C07C 47/565
  2. C07C 45/673 + C07C 47/565
  3. C07C 67/293 + C07C 69/157
  4. C07C 41/16 + C07C 43/215
  5. C07C 37/055 + C07C 39/19
  6. C07C 37/00 + C07C 39/19

Citation (search report)

  • [XA] R. E. FORD ET AL.: "Synthesis and quantitative structure-activity relationships of antiallergic 2-hydroxy-N-1H-tetrazol-5-ylbenzamides", J.MED.CHEM., vol. 29, 1986, pages 538-549, XP002109293
  • See also references of WO 9740004A1

Designated contracting state (EPC)

DE FR GB IE IT

EPO simple patent family

WO 9740004 A1 19971030; AU 2435797 A 19971112; AU 725614 B2 20001012; EP 0900189 A1 19990310; EP 0900189 A4 20000126; PE 24298 A1 19980526

INPADOC legal status


2002-06-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011101

2000-01-26 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 19991208

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB IE IT

1999-09-15 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: HENKEL CORPORATION

1999-03-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19981020

1999-03-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IE IT