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1. (WO1997040004) 2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE AND PROCESS OF PREPARING HYDROXYARYLALDEHYDES THEREFROM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/040004    International Application No.:    PCT/US1997/005503
Publication Date: 30.10.1997 International Filing Date: 10.04.1997
Chapter 2 Demand Filed:    23.10.1997    
IPC:
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)
Applicants: HENKEL CORPORATION [US/US]; Suite 150, 140 Germantown Pike, Plymouth Meeting, PA 19462 (US)
Inventors: KRBECHEK, Leroy; (US)
Agent: ROBBINS, Frank, E.; Henkel Corporation, Suite 150, 140 Germantown Pike, Plymouth Meeting, PA 19462 (US)
Priority Data:
08/635,865 23.04.1996 US
08/670,127 25.06.1996 US
Title (EN) 2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE AND PROCESS OF PREPARING HYDROXYARYLALDEHYDES THEREFROM
(FR) 2-HYDROXY-5-ALKYL-BETA-METHYLSTYRENE ET PROCEDE DE PREPARATION D'HYDROXYARYLALDEHYDES A PARTIR DE CETTE SUBSTANCE
Abstract: front page image
(EN)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.
(FR)Procédé de fabrication d'un salicylaldéhyde à substitution alkyle dans lequel la substitution alkyle porte sur au moins 3 atomes de carbone par molécule, et de préférence un nombre inférieur ou égal à 25, consistant à ozonoliser un 2-hydroxy béta-méthylstyrène substitué par alkyle, cette substitution par alkyle portant sur au moins 3 atomes de carbone par molécule. Après oximation des produits, on obtient des substances d'extraction du métal utiles, en particulier pour l'extraction du cuivre.
Designated States: AU, CA, CN, JP, MX.
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)