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2 101 288

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IPC

(21) (22)

Application

96100095/04, 1996-01-04

(22)

Actual filing date

1996-01-04

(45)

Published

1998-01-10

(72)

Inventor

Efanov V.A.Leonov A.A.Zhuk R.V.Rudnev Ju.P.Olenin V.I.Rubezhanskij V.I.

(73)

Holder

Volgogradskoe Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF SYNTHESIS OF DIPHENYL-2-ETHYLHEXYLPHOSPHITE Russian patent published in 1998 - IPC

Abstract RU 2101288 C1

FIELD: organophosphorus compounds. SUBSTANCE: diphenyl-2-ethylhexylphosphite is synthesized by reesterification of triphenylphosphite with 2-ethylhexanol using potassium fluoride as catalyst at amount 0.05-0.40 wt.-% with respect to triphenylphosphite. Process is carried out in phenol at 50-70 C for 5-6 h. Phenol is taken at amount 0.7-1.8 mole/1 mole 2-ethylhexanol. The synthesized compound is used as an inhibitor of oxidation in lubricant oils, stabilizing agent of polymers, plasticizer and fireproofing compound. EFFECT: improved method of synthesis. 2 cl, 1 tbl

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RU 2 101 288 C1

Authors

Efanov V.A.

Leonov A.A.

Zhuk R.V.

Rudnev Ju.P.

Olenin V.I.

Rubezhanskij V.I.

Dates

1998-01-10—Published

1996-01-04—Filed

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