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Application

2000131824/04, 2000-12-18

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Start date

2000-12-18

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Actual filing date

2000-12-18

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Published

2002-10-20

(72)

Inventor

Dzhemilev U.M.Sadykov R.A.Samokhina M.G.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF CATALYTIC ISOMERIZATION OF ENDOTETRAHYDRODICYCLOPENTADIENE TO EXO-TETRAHYDRODICYCLOPENTADIENE Russian patent published in 2002 - IPC

Abstract RU 2191172 C2

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to a method of synthesis of exo- tetrahydrodicyclopentadiene that can be used as a hydrocarbon fuel and parent monomers for synthesis of biologically active substances. Method involves the isomerization reaction of endo-tetrahydrodicyclopentadiene to exo-tetrahydrodicyclopentadiene when polychloromethane is added by drops to a reaction mass consisting of endo-tetrahydrodicyclopentadiene, an inert solvent and an organoaluminum compound. Chelate or salt of transient metal: PdCl2,Pd(acac)2,Ni(acac)2. is used as a catalyst. Reaction is carried in argon atmosphere, under normal pressure and at temperature 10-60 C for 15-60 min. The mole ratio endo- tetrahydrodicyclopentadiene : organoaluminium compound : poly-chloromethane : salt (chelate) of metal = 100:9:32:0.1, respectively. Invention provides the development of the effective catalytic system providing 99.5% of the yield of the end product. EFFECT: improved method of isomerization, increased yield. 1 tbl, 7 ex

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RU 2 191 172 C2

Authors

Dzhemilev U.M.

Sadykov R.A.

Samokhina M.G.

Dates

2002-10-20—Published

2000-12-18—Filed

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