Substituted diphosphines and a process for their preparation

Details Substituted diphosphines and a process for their preparation Substituted diphosphines and a process for their preparation

1997-04-17

1998-12-08

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

562 11, 562 13, 562 8, 562 20, 568 17, C07F 950

Patent

active

058472002

ABSTRACT:
New diphosphines in the form of ammonium carboxylates, sulfonates or phosphonates having a singly or multiply charged diphosphine anion and the corresponding number of ammonium cations as counter ions, and a process for their preparation useful as ligand in rhodium catalyst systems for hydroformylation of olefins.

REFERENCES:
patent: 4142060 (1979-02-01), Kuntz
patent: 4710321 (1987-12-01), Bahrmann
patent: 4716250 (1987-12-01), Abatjoglou et al.
patent: 5274183 (1993-12-01), Herman
patent: 5347045 (1994-09-01), Herrmann

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