Phosphanes, their method of production and use in metal complexes

US6225504A · kind A · utility

Assignee

• Celanese GmbH · US

Inventors

• Sandra Bogdanovic · Frankfurt am Main, DE
• Matthias Beller · Ostseebad Nienhagen, DE
• Alexander Zapf · Rosenheim, DE
• Jurgen Krauter · Dreieich, DE

Key dates

• Filing date: Jun 23, 1999
• Grant date: May 1, 2001
• Expiry date: Jun 23, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the preparation of the formula EQU Ar.sup.1.sub.3-x P[(Ar.sup.2 (OZ).sub.y ].sub.x I wherein Ar.sup.1 and Ar.sup.2 are individually aromatic of 6 to 20 carbon atoms or heteroaromatic of 4 to 9 carbon atoms, each unsubstituted or substituted with at least one member of the group consisting of halogen, carboxyl, --OH, alkyl of 1 to 6 carbon atoms, phenyl and naphthyl, Ar.sup.1 has one valence and R.sup.2 has y+1 valences, x is an integer of 1, 2 or 3, y is 1 or 2, Z is carbohydrate with a glycosidic bond comprising reacting a hydrocarbon halide of the formula EQU Z'--X II EQU when Z' has the definition of Z with --OH protected and X is chlorine, bromine or fluorine with a phosphane of the formula EQU Ar.sup.1.sub.3-x P[(Ar.sup.2 (OH).sub.y ].sub.x III in a multi-phase reaction medium in the presence of a base and a phase transfer catalyst to form a phosphane of the formula EQU Ar.sup.1.sub.3-x P[(Ar.sup.2 (OZ.sup.1).sub.y ].sub.x IV and removal of the protective groups to form a compound of Formula I, metal complexes thereof and various processes.