Transition metal complexes

US4999443A · kind A · utility

Assignee

• BASF SE

Inventors

• Werner Bertleff · Viernheim, DE
• Dieter Koeffer · Weinheim, DE
• Wolfgang Klaeui · Vaals, NL
• Choong Eui Song · Seoul, KR

Key dates

• Filing date: Jun 2, 1989
• Grant date: Mar 12, 1991
• Expiry date: Jun 2, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Transition metal complexes of the general formula I EQU [A].sup.x- [Q].sup.+.sub.x I where Q is one equivalent of a cation, x is from 0 to 2 and A is a transition metal complex of the general formula ##STR1## where n is from 1 to 3, M is positively charged cobalt, rhodium, iridium or ruthenium, the ligands B are phosphonic, arsonic, phosphinic and/or arsinic acid ligands which are esterified with identical or different alcohols, one or more of these alcohol components carrying a functional group, L is ##STR2## the radicals R.sup.5 are identical or different radicals from the group consisting of C.sub.1 -C.sub.4 -alkyl and phenyl, p is an integer from 0 to 6, q is an integer from 0 to 5, and R.sup.1 is fluorine, chlorine, bromine, iodine, cyanide, isocyanide, cyanate, isocyanate, thiocyanate, isothiocyanate, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -trialkyl phosphite or triaryl phosphite, are used as catalysts, or prepared in situ, in processes for the cyclotrimerization of acetylene compounds, for the catalytic hydrogenation of unsaturated compounds and for the hydroformylation of alkenes.