Method for manufacturing cobalt catalysts

C - Chemistry – Metallurgy – 07 – F

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C07F 15/06 (2006.01)

Patent

CA 2224458

A method for manufacturing cobalt complexes having the formula: [Co(NH3)5M] Ty wherein M ligands are selected from substituted and unsubstituted C1-C30 carboxylic acids having the formula: RC(O)O-; said method comprising reacting cobalt complexes having the formula: [Co(NH3)5X] Ty (e.g., X is chlorine) with concentrated ammonium hydroxide followed by carboxylic acid anhydride of the formula: RC(O)O(O)CR.

Ce procédé permet de fabriquer des complexes, à base de cobalt de la formule: [Co(NH¿3?)¿5?M] T¿y?, où des ligands M sont choisis parmi des acides carboxyliques C¿1-30?, substitués ou non, de formule: RC(O)O-. Ce procédé consiste à faire réagir des complexes de cobalt de formule: [Co(NH¿3?)¿5?X] T¿y? (où X représente chlore, par exemple) avec de l'hydroxyde d'ammonium concentré puis avec un anhydride d'acide carboxylique de formule: RC(O)O(O)CR.

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