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2 102 372

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IPC

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Application

95119122/04, 1995-11-10

(22)

Actual filing date

1995-11-10

(45)

Published

1998-01-20

(72)

Inventor

Dzhemilev U.M.Ibragimov A.G.Ramazanov I.R.Kunakova R.V.

(73)

Holder

Institut Neftekhimii I Kataliza S Opytnym Zavodom Akademii Nauk Respubliki Bashkortostan

METHOD OF PREPARING 1,4-BUTANEDIOL Russian patent published in 1998 - IPC

Abstract RU 2102372 C1

FIELD: organic chemistry. SUBSTANCE: 1,4-butanediol is prepared by reaction of ethylene with triethyl aluminium in the presence of catalysts Cp2ZrCl2 and Bu2AlH and γ in 1:(2-4) ratio at room temperature for 12-16 hours followed by oxidation and hydrolysis of reaction mixture. Said compound is prepared for manufacturing thermoplastic material such as polybutylene terephthalate useful as constructional material in automobile manufacture, electrical engineering or in other industries 1,4-butene diol is used in large quantities for preparing 8-butyrolaclone, N- methyl and N-vinyl pyrrolidones widely used in pharmaceutical, cosmetic, textile, food, paint and electronic industries. Besides, 1,4-butane diol is raw material for producing polyurethanes. EFFECT: more efficient preparation method. 1 tbl

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RU 2 102 372 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Ramazanov I.R.

Kunakova R.V.

Dates

1998-01-20—Published

1995-11-10—Filed

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