Catalyst comprising a complex of a metal of subgroup viii based on a phosphinite ligand, and a method for hydroformylation
AssigneeBASF SE
InventorsHeiko Maas, Rocco Paciello, Michael Röper, Jakob Fischer
Life of this patent
Estimating the term…
Abstract
The invention relates to a catalyst which comprises at least one complex of a metal of group VIII, which comprises at least one uni-, bi- or multidentate phosphinite ligand in which the phosphorus atom and the oxygen atom of the phosphinite group are part of a 5- to 8-membered heterocycle, and to processes for hydroformylation and hydrocyanation of compounds which contain at least one ethylenic double bond in the presence of a catalyst of this type.
Claims10
A catalyst comprising at least one complex of a metal of group VIII with at least one uni-, bi- or multidentate phosphinite ligand of the formula I
- in which
- A is a 2,2′-biphenylylene or 2,2′-binaphthylylene radical, which may have 1, 2 or 3 substituents selected from alkyl, alkoxy or halogen,
- R1 is alkyl, aryl or hetaryl, each of which optionally has one, two or three substituents selected from alkyl, cycloalkyl, aryl, alkoxy, cycloalkyloxy, aryloxy, halogen, trifluoromethyl, nitro, cyano, carboxyl, carboxylate, acyl, sulfonyl, NE1E2 and alkylene-NE1E2, where E1 and E2 are identical or different and are selected from alkyl, cycloalkyl and aryl;
- or is a radical of the formula II
- —X—Y (II)
- in which
- X is either C2-C8-alkylene bridge which is optionally interrupted by SiraRb, N, NRc, O or S, in which Ra and Rb are hydrogen, alkyl, alkoxy, halogen, trifluoromethyl, nitro or cyano, and Rc is hydrogen, alkyl or aryl, where aryl is optionally mono- or disubstituted by alkyl, alkoxy, halogen, trifluoromethyl, nitro or cyano, optionally has one, two or three double bonds and/or is optionally fused once, twice or three times to aryl and/or hetaryl, where the aryl or hetaryl groups have, independently of one another, optionally one, two, three or four substituents selected from alkyl, cycloalkyl, aryl, alkoxy, cycloalkyloxy, aryloxy, halogen, trifluoromethyl, nitro, cyano, acyl, carboxyl, carboxylate, NE1E2 and alkylene-NE1E2, where E1 and E2 have the meanings indicated previously, and adjacent fused rings are optionally connected by SiRaRb, N, NRc, O or S or by a C1-C6-alkylene bridge which optionally additionally carries a group selected from SiRaRb, N, NRc, O or S, in which Ra, Rb and Rc are as defined above;
- or
- an optionally substituted metallocene bridge;
- and
- Y is a radical of the formula III
- in which
- D has the meanings indicated previously for A, and
- m and n are, independently of one another, 0 or 1,
- or a salt thereof.
A catalyst as defined in either of the preceding claims, where the phosphinite ligand of the formula I is selected from ligands of the formulae la to li
- in which
- R9 and R10 are, independently of one another, hydrogen or trifluoromethyl, and
- R11 is fluorine or trifluoromethyl.
Dependencies are inferred from the claim text.