Tetraphosphorus ligands for catalytic hydroformylation and related reactions
AssigneeThe Penn State Research Foundation
InventorsXumu ZHANG, Yongjun Yan
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Abstract
Tetraphosphorous ligands are combined with transition metal salts to form catalysts for use in hydroformylation, isomerization-hydroformylation, hydrocarboxylation, hydrocyan-ation, isomerization-formylation, hydroaminomethylation and similar related reactions.
Claims7
1-8. (canceled)
A catalyst comprising a ligand and a transition metal salt, wherein the metal of said metal salt is selected from the group consisting of:
- Fe, Zn, Mn, Co, Cu, Ag, Ni, Pt, Pd, Rh, Ru and Ir:
- and wherein the ligand has the following formula:
- wherein i, j, k, l, m and n are, independently, H, R, Ar, substituted Ar, OR, OAr, COOEt, halide, SO2R, SO3H, SO2NHR, POR2, POAr2 or NR2, where R is an alkyl, substituted alkyl, aryl or substituted aryl and Ar is an aryl:
- X1-X4 are, independently, O, or CH2;
- Y1, Y′1, Y2, Y′2, Y3, Y′3, Y4, Y′4, are, independently, R, Ar, OR, OAr, pyrrole or substituted pyrrole, or where R, Ar, OR, OAr, pyrrole and substituted pyrrole are linked with a carbon to carbon bond, CH2, NH, NR or O.
A method of using the catalyst in a hydroformylation reaction, the catalyst comprising a ligand of claim 8 and a transition metal salt selected from the group consisting of (Rh(COD)Cl)2, (Rh(COD)2)X, Rh(acac)(CO)2, and RuH(CO)2 (PPh3)2.
Dependencies are inferred from the claim text.