Process to prepare a multidentate phosphine compound

Details Process to prepare a multidentate phosphine compound Process to prepare a multidentate phosphine compound

2005-07-05

2005-07-05

Keys, Rosalynd (Department: 1621)

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

Organic compounds

Phosphorus containing

C568S012000, C568S017000

Reexamination Certificate

active

06914161

ABSTRACT:
Multidentate phosphate compounds of formula (1) are prepared by reacting a 9-phosphabicyclononane, in the presence of an acid catalyst, with a 9-phospha-bicyclononane alkenylmonophosphine of formula (2), some of which, e.g., P-{2-(2-butenyl)}-9-phospha-bicyclononane, are novel compounds. The multidentate phosphine compounds of formula (1) and those of formula (3), are useful as ligands for transition metal catalysts in various types of reactions, such as, hydrogenation reactions.

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