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AssigneeSRI International
InventorsRoelof Van Ginkel, Alexander Van Der Made, Jan De With, Wolf Eilenberg, Ursula Eilenberg-Robben
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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—PR2 is a ligand suitable for making catalysts for copolymerizing carbon monoxide and a olefinically unsaturated compound.
A process comprising:
A process for the preparation of a compound of the formula R13P, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group, comprising:
A process for the preparation of a compound of the formula R2P—Li, comprising reacting a compound of formula R2P-L with lithium, where R is a substituted hydrocarbyl group, and L represents a leaving group.
A process for the preparation of a compound of the formula R12P—Li, comprising reacting a compound of formula R12P-L with lithium, where R1 is a substituted hydrocarbyl group, and L represents a group of formula —NR″2 where each group R″ represents an alkyl group or the groups R″ together constitute an alkylene chain.
A process for the preparation of a compound of the formula R2P—Li, comprising:
A process for the preparation of a compound of the formula R12P—X—PR12, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group;
A process for the preparation of a compound of the formula R2P+(L)-X—P+(L)R2 2Hal—, where R is a substituted hydrocarbyl group, X is a bivalent bridging group, Hal is a halogen atom and L is a leaving group, comprising:
A process for the preparation of a compound of the formula R12P+(L)-X—P+(L)R12 2Hal—, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group;
A process for the preparation of a compound of the formula R12P+(L)-X—P+(L)R12 2Hal—, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group;
A process for the preparation of a compound of the formula R12P—X—PR12, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group;
A process for the preparation of a compound of the formula R12P—X—PR12, where R1 represents an aryl group substituted by an alkoxy, aryloxy, dialkylamino, dialkylaminoalkyl, dialkylamido, alkoxyalkoxy, alkylthio, alkylsulfonyl, dialkylamidosulfonyl, alkylsulfonate or lithiated hydroxyl group;
Dependencies are inferred from the claim text.