Synthesis of and hydroformylation with fluoro-substituted bident

Details Synthesis of and hydroformylation with fluoro-substituted bident Synthesis of and hydroformylation with fluoro-substituted bident

1996-04-10

1998-08-04

Ivy, C. Warren

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

Organic compounds

Oxygen containing

568456, 568 16, 568 17, C07C 4549

Patent

active

057896240

ABSTRACT:
Hydroformylation of alkenes to aldehydes in the presence of a rhodium complex catalyst is improved by the addition of a novel bidentate ligand of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.1 ' and R.sub.2 ' are organic radicals selected from alicyclic, aliphatic and aromatic groups of which at least one is preferably substituted with at least one electronegative moiety and the methylene groups are present at the trans-2,3 positions on the norbomane moiety. The invention also provides a novel method for producing the bidentate ligand and novel intermediate phosphine oxide and phosphinous acid compounds.

REFERENCES:
J. Am Chem Soc 1992 114 5535-5543 Casey "Diphosphines etc".
Eller. J Organomet. Chem (1920) 22(3) 631-6 "Synthesis of new tetrafluoroarylderive of P+S".
McFarlane, Polyhedron vol. 7 Mo 19/20 pp. 1878-79 1988 "Polyphosph Ligand".
Morrison & Boyd 3rd Ed. 1975 pp. 318, 337-338.

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