Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus containing
Reexamination Certificate
2006-06-27
2006-06-27
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus containing
C568S013000, C568S014000, C568S015000, C564S015000
Reexamination Certificate
active
07067701
ABSTRACT:
This invention relates to processes for making phosphorus compounds R2P—X—PR2, R2P-M, R2P-L and R3P, and the novel cation R2P+(L)-X—P+(L)R2, where R represents an optionally substituted hydrocarbyl group, X represents a bridging group, L represents a leaving group and M represents an alkali metal atom. The invention relates further to a process for making a compound R2P-L from a compound R—H via a new process for making the compound R—Li followed by its reaction with a compound Hal2P-L. The compound R2P—X—PR2is a ligand suitable for making catalysts for copolymerizing carbon monoxide and a olefinically unsaturated compound.
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De With Jan
Eilenberg-Robben, legal representative Ursula
Van Der Made Alexander
Van Ginkel Roelof
Reed Dianne E.
SRI - International
Witherspoon Sikarl A.
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