Cytec Technology Corporation

Cytec Canada Inc.

Yuehui Zhou

Christine J Bradaric-Baus

Allan J Robertson

Donato Nucciarone

Jeffrey Charles Henry Dyck

Boban Jakovljevic

Cyril Christian Henri Bourget

John Henry Hillhouse

Douglas Baumann

Allan James Robertson

John H Hillhouse

Methods of preparing compounds according to Formula (I): and salts thereof as well as their corresponding phosphine intermediates are provided herein, wherein Rand Rare different and each of Rand Ris independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature.

Phosphinic acids and their sulfur derivatives and methods for their preparation

Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of R, R, R, and Ris independently hydrocarbyl and Xis a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.

Phosphonium salts and methods of their preparation

The present invention provides phosphinic acids and their sulfur derivatives, in accordance with the following formula (I): wherein Rand Rare different and each of Rand Ris independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature. Compounds of formula (I) find utility for example as metal extractants. Also provided are methods for making compounds of formula (I) and their corresponding phosphine intermediates. 

A primary phosphine or a secondary phosphine is reacted with an ester compound selected from the group consisting of; a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula (VII) wherein each of R, R, R, and Ris independently hydrocarbyl and Xis a phosphate, phosphonate, sulfate, or sulfonate. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.

Phosphonium salts and their method of preparation

Novel phosphonium and imidazolium salts and methods for preparing them are disclosed. The novel phosphonium and imidazolium compounds are useful as polar solvents and have the general formula (I): QXwherein Qis formula (a) or formula (b); and Xis formula (c), formula (d) or formula (e); and wherein: each of R, R, R, R, R, R, R, R, R, and Ris independently a hydrocarbyl group; each of R, R, and Ris independently a hydrogen or hydrocarbyl group. 

Phosphonium and imidazolium salts and methods of their preparation

Tertiary phosphines are prepared by reacting a phosphine (PHor a primary or secondary phosphine) with a cyclic alpha,beta-unsaturated carbonyl compound having no more than one C&#x2550;C double bond conjugated with a carbonyl group. The inventive tertiary phosphines can have R groups that are the same or different. The inventive tertiary phosphines may be used as ligands for metal catalysts or as starting materials for preparing phosphonium salts or ylids.

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Toronto, Canada

Yuehui Zhou