METHOD FOR PRODUCTION OF CYCLIC SULFONE BUTADIENE-1,3 (SULFOLENE-3) Russian patent published in 1996 - IPC

Abstract RU 2065857 C1

FIELD: organic chemistry. SUBSTANCE: desired product sulfolene-3 has essential formula BF C4H602. Butadiene is converted into desired product at yield 89 %. Hydrocarbon -C₄ fraction of separation of gases of pyrolysis of benzine) being source of butadiene-1,3 is used as reagent 1. Liquid dioxide of sulfur is used as reagent 2. Reaction is carried out at 95-105 C under pressure up to 30 atm within 2-4. Phenols being inhibitor of production of linear polysulfones are used during said reaction. Alcohols, ethers, toluene and benzene are used as solvents for phenols. EFFECT: improves efficiency of the method. 5 cl, 1 tbl

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RU 2 065 857 C1

Authors

Ovsjannikov L.F.

Porubleva T.P.

Dates

1996-08-27—Published

1995-03-27—Filed