Hydroformylation process using novel phosphine-rhodium catalyst

Details Hydroformylation process using novel phosphine-rhodium catalyst Hydroformylation process using novel phosphine-rhodium catalyst

1993-06-01

1994-07-26

Lone, Werren B.

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

Organic compounds

Heavy metal containing

556 15, 556 17, 568454, C07F 1500

Patent

active

053328469

ABSTRACT:
Disclosed are bis-phosphine compounds having the general formula ##STR1## wherein: each of A.sup.1, A.sup.2, A.sup.3 and A.sup.4 is an arylene radical wherein (i) each phosphorus atom P is bonded to a ring carbon atom of A.sup.1 and A.sup.2 and to a ring carbon atom of A.sup.3 and A.sup.4, (ii) A.sup.1 and A.sup.2, and A.sup.3 and A.sup.4 are bonded to each other by ring carbon atoms and (iii) each of the residues ##STR2## constitutes a 5-membered ring; each of A.sup.5 and A.sup.6 is an arylene radical wherein A.sup.5 and A.sup.6 are bonded to each other and to residues R.sup.1 --C--R.sup.2 and R.sup.3 --C--R.sup.4 by ring carbon atoms and R.sup.1 --C--R.sup.2 and R.sup.3 --C--R.sup.4 are connected to each other through a chain of 4 carbon atoms; and

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