| 摘要 |
1,203,873. Cobalt organometallic compounds. SNAM PROGETTI S.p.A. 16 Feb., 1968 [17 Feb.,1967], No. 7841/68. Heading C2J. A compound containing the group may be prepared by reacting a compound containing the group with a compound having " labile hydrogen (R<SP>1</SP>H) and a compound containing a multiple bond (M), in the presence of visible light and/or ultraviolet light and or a temperature greater than 150‹ C. (X<SP>1</SP>,X<SP>2</SP>, X<SP>3</SP>, X<SP>4</SP> may be the same or different, and represent a nitrogen, oxygen, sulphur or phosphorus atom, and form'part of a polydentate chelating agent). The cobalt atom,-which is in the III oxidation state may also be attached to a Lewis base, which occupies the sixth octahedral co-ordination position. If the reaction is effected by light, this is preferably of a wavelength less than 500 mÁ. The reaction may also be carried out in a solvent, which may be water; an aliphatic, cycloaliphatic or aromatic alcohol; an amine; or a mercaptan. The. reaction may be effected at an elevated pressure. The compound containing a multiple bond M, may be carbon monoxide or nitric oxide, and the Lewis base may be water, an amine, ether or a phosphine. |
