| 摘要 |
1,207,916. Chelated cobalt compounds. SNAM PROGETTI S.p.A. 18 June, 1968 [22 June, 1967], No. 29066/68. Headings C2C and C2J. A cobalt complex contains the group where Y<SP>1</SP> is a hydrocarbon radical or a Lewis base, Y<SP>11</SP> is a Lewis base, and each N represents a nitrogen atom of the same molecule of a tetradentate chelating agent having less than four oximic groups. The chelating agent may be bis - (diacetyl - monoxime - imino) - 1,3 - propane. A compound (A) where Y<SP>1</SP> and Y<SP>11</SP> are identical and monovalent anions, may be produced by reacting CoX 2 , where X is a monovalent anion, with a tetradentate chelating agent in which the chelating atoms are nitrogen atoms, and the chelating agent has less than four oximic groups. The X's can both be replaced by Lewis base units by reacting A with the Lewis base e.g. HN 3 , in a solvent, e.g. alcohol. The compound where Y<SP>1</SP> is a hydrocarbon radical may be prepared by reacting A either with NaBH 4 in the presence of an alkyl halide in an aqueous solvent medium, or with an alkyl Grignard in, as solvent, a Lewis base oxygencontaining compound e.g. an ether. |
