Method of purifying organic diphosphite compounds

A method of purifying an organic diphosphite of general formula (I) The method comprises providing a crude organic diphosphite of general formula (I) that is at least partly dissolved in a first solvent (L1), wherein (L1) is selected from the group consisting of alkylbenzenes, aryl alkyl ethers, chl...

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Bibliographic Details
Main Authors BERENS ULRICH, WINDLIN FRANZ NIKLAUS, AL-AKHDAR WALID, GANZ HOLGER
Format Patent
LanguageEnglish
Published 18.08.2015
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:A method of purifying an organic diphosphite of general formula (I) The method comprises providing a crude organic diphosphite of general formula (I) that is at least partly dissolved in a first solvent (L1), wherein (L1) is selected from the group consisting of alkylbenzenes, aryl alkyl ethers, chlorobenzene, and mixtures thereof, and precipitating by admixing with a second solvent (L2) selected from the group consisting of linear C1-C4-alkanols, ethylene glycol di(C1-C4-alkyl) ethers, and mixtures thereof, and separating off the precipitated organic diphosphite from the solvents.
Bibliography:Application Number: US201213731725