7-substituted alkylates of 8-hydroxyquinoline and process...

C - Chemistry – Metallurgy – 07 – D

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260/289.8

C07D 215/26 (2006.01)

Patent

CA 1045141

SUBSTITUTED 8-HYDROXYQUINOLINES AND PROCESS FOR THE PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE A class of hydrocarbyl substituted 8-hydroxyquinolines wherein the indicated substituent arises through the direct alkylation of said quinolinol with a ketone obtained by condensing methyl ketone with a hindered aldehyde. These alkylates are useful metal collectors in hydrometallurgical extraction processes designed for the recovery of metal values from dilute aqueous solutions thereof.

270276

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