| 摘要 |
1281389 Oxo process and catalyst BP CHEMICALS Ltd 11 Nov 1970 [2 Dec 1969] 58775/69 Headings C2B and C2C Aldehydes are prepared by the hydroformylation of olefines in the presence of novel complexes of Group VIII metals other than Fe, Ni, Pd or Pt which contain a bidentate anionic ligand co-ordinating through 2 nitrogen atoms. Specified catalysts comprise the reaction products of rhodium dicarbonyl chloride dimer with di-imino alkane such as 2,4-di-o-tolyl-iminopentane giving a product of the type (2 - o - tolylimino - 4 - o - tolylaminopent - 2- en-ato dicarbonyl rhodium or with (1-pyrazolyl) borates giving complexes of type where M is the Group VIII metal. The pyrazole ring may be substituted. The catalyst may also contain at least one neutral complexing ligand containing an atom of a Group Vb or VIb element having a single pair of electrons available for donation. Examples prepare normal and branched aldehydes from propene and hexene-1. |
