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2 171 797

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IPC

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Application

99114655/04, 1999-07-05

(24)

Start date

1999-07-05

(22)

Actual filing date

1999-07-05

(45)

Published

2001-08-10

(72)

Inventor

Khusnutdinov R.I.Atnabaeva A.M.Parfenova R.I.Dodonova N.E.Muslimov Z.S.Dzhemilev U.M.Nefedov O.M.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF PREPARING 5-ALKOXYPENTANONES-2 Russian patent published in 2001 - IPC

Abstract RU 2171797 C2

FIELD: chemical industry. SUBSTANCE: described is method of preparing 5- alkoxypentanones-2 of formula: CH3CO(CH2)3OR wherein R is CnH2n+1 n is 1-10 by reacting acetylcyclopropane with monohydric alcohol R-OH in the presence of palladium-containing catalyst in aqueous medium in the presence of original alcohol R-OH as solvent or in aqueous-ether medium at temperatures from 165 to 200 C for 6-60 hours at acetylcyclopropane to R-OH to H2O to catalyst to solvent molar ratio of 1:1:(3-8):(0.001- 0.01:(2 9) is R is CnH2n+1 (n is 1-3), solvent is corresponding alcohol, and if n is equal or greater than 4, solvent is diethyl alcohol. Method makes it possible to attain yield of products of 43-97%. EFFECT: low consumption of catalyst and no toxic waste. 2 ex, 4 tbl

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RU 2 171 797 C2

Authors

Khusnutdinov R.I.

Atnabaeva A.M.

Parfenova R.I.

Dodonova N.E.

Muslimov Z.S.

Dzhemilev U.M.

Nefedov O.M.

Dates

2001-08-10—Published

1999-07-05—Filed

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