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2 146 248

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C1

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IPC

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Application

97122021/04, 1997-12-30

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Start date

1997-12-30

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Actual filing date

1997-12-30

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Published

2000-03-10

(72)

Inventor

Alimov N.I.Kuchinskij E.V.Ivanov K.N.Shantrokha A.V.Demidov O.M.Kozyreva A.V.

(73)

Holder

Vojskovaja Chast'

METHOD OF PREPARING DIVINYL SULFOXIDE Russian patent published in 2000 - IPC

Abstract RU 2146248 C1

FIELD: chemical industry. SUBSTANCE: method comprises dehydrochlorination of β,β′-dichlorodiethyl sulfoxide. Process is carried out in 40% aqueous solution of potassium hydroxide in the presence of interphase transfer catalyst, e. g. N,N,N-tributyl-N-benzyl ammonium at β,β′-dichloroethyl sulfoxide to alkali to catalyst molar ratio of 1:4:0.04 respectively and at temperature of 35-50 C. EFFECT: improved method of preparing divinyl sulfoxide, shorter process duration, lower power consumption and higher yield of the desired product. 6 ex

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RU 2 146 248 C1

Authors

Alimov N.I.

Kuchinskij E.V.

Ivanov K.N.

Shantrokha A.V.

Demidov O.M.

Kozyreva A.V.

Dates

2000-03-10—Published

1997-12-30—Filed

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