PRODUCTION AND PURIFICATION OF PHOSPHINE OXIDE

PURPOSE: Provided is a production of a high purity phosphine oxide in a high yield which is useful for a catalyst in polymerizing alkylene oxide compounds by reacting a specific iminophosphorane with phosphorus oxychloride in an aprotic organic solvent having a dielectric constant. CONSTITUTION: Pho...

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Main Authors NOBORI TADAHITO, SHIBAHARA ATSUSHI, KIYONO SHINJI, HARA ISAO, HAYASHI TAKAOMI, FUNAKI KATSUHIKO, MIZUTANI KAZUMI, TAKAKI USAJI
Format Patent
LanguageEnglish
Korean
Published 06.04.2001
Edition7
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:PURPOSE: Provided is a production of a high purity phosphine oxide in a high yield which is useful for a catalyst in polymerizing alkylene oxide compounds by reacting a specific iminophosphorane with phosphorus oxychloride in an aprotic organic solvent having a dielectric constant. CONSTITUTION: Phosphine oxide of the formula(2) is manufactured by reacting iminophosphoranes such as iminotris(dimethylamino) phosphorane represented by formula(1) (wherein R is a C1-10 hydrocarbon or two Rs on the same nitrogen atom may be combined with each other into a ring structure) with phosphorus oxychloride in an aprotic organic solvent such as toluene having a dielectric constant of over 2.2 at 20 deg.C. Purification of the phosphine oxide preferably is carried out by washing a solution containing both the phosphine oxide and a water-immiscible organic solvent with water to form a phosphine oxide solution and by concentrating the solution to dryness.
Bibliography:Application Number: KR20000019160