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2 105 004

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C1

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IPC

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Application

96117228/04, 1996-08-27

(22)

Actual filing date

1996-08-27

(45)

Published

1998-02-20

(72)

Inventor

Bobyleva L.I.Krjukov S.I.Abreimova M.A.Egorova L.M.Liakumovich A.G.Akhmed'Janova R.A.

(73)

Holder

Jaroslavskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD OF SYNTHESIS OF 2,5-DIHYDROFURAN Russian patent published in 1998 - IPC

Abstract RU 2105004 C1

FIELD: chemical technology. SUBSTANCE: 2,5-dihydrofuran is synthesized by butadiene monooxide rearrangement in the presence of catalytical system consisting of zinc halide, solvent and iodine-containing compound. Lithium iodide crystal hydrate of the formula LiJ•H2O in combination with N-methylpyrrolidone is used as iodine-containing compound. Reaction is carried out at 100-130 C under pressure 0.1-0.5 MPa. Reagents were used at the following amounts, %: LiJ•H2O 5-35; zinc halide 4-18, and N-methylpyrrolidone 135-450 per loaded butadiene monooxide. EFFECT: improved method of synthesis. 2 cl, 1 tbl

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RU 2 105 004 C1

Authors

Bobyleva L.I.

Krjukov S.I.

Abreimova M.A.

Egorova L.M.

Liakumovich A.G.

Akhmed'Janova R.A.

Dates

1998-02-20—Published

1996-08-27—Filed

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