Diphosphines containing silane groups, immobilised diphosphines

Details Diphosphines containing silane groups, immobilised diphosphines Diphosphines containing silane groups, immobilised diphosphines

1993-07-14

1994-05-03

Ivy, C. Warren

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502166, 502169, 549220, 549221, B01J 3124, C07F 928

Patent

active

053088190

ABSTRACT:
Compounds where a solid carrier material which contains diphosphine rhodium or iridium complexes fixed on the surface thereof, of which the carrier material has the formula IV or IVa: ##STR1## wherein Y denotes two monoolefin ligands or a diene ligand, M is Ir(I) or Rh(i), Z is --Cl, --Br or -I, A.crclbar. is the anion of an oxyacid or complex acid, T is a solid carrier material, r is 0, 1 or 2, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are as defined in claim 1. These materials are heterogeneous and separable catalysts for the asymmetrical hydrogenation of prochiral compounds containing carbon double bonds or carbon/hetero atom double bonds, for example ketones and imines.

REFERENCES:
patent: 3978101 (1976-08-01), Aviron-Violet
patent: 4994615 (1991-02-01), Spindler
patent: 4996361 (1991-02-01), Cullen
patent: 5011995 (1991-04-01), Pugin
patent: 5244857 (1993-09-01), Pugin
Nagel, U., "The First Stereospecific . . . ", J. Chem. Soc., Chem. Commun., pp. 1098-1099, 1986.
Achwa J. Chem. Jap Soc., Chem Letters, pp. 905-908 (1978).
Nagel et al. J. Chem. Soc, Chem. Commun., pp. 1098-1099 (1986).
Kolb et al. React Kinet Catol. Let. 7(2) pp. 199-204 (1977).

Affiliated with

Also associated with

Rating

Diphosphines containing silane groups, immobilised diphosphines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diphosphines containing silane groups, immobilised diphosphines , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diphosphines containing silane groups, immobilised diphosphines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2115085