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2 185 361

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Application

2000126368/04, 2000-10-19

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Start date

2000-10-19

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Actual filing date

2000-10-19

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Published

2002-07-20

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Inventor

Dzhemilev U.M.Ibragimov A.G.Ramazanov I.R.Luk'Janova M.P.Sharipova A.Z.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF SYNTHESIS OF 1,2-DIALKYL-1,2-DIETHYLCYCLO-PROPANES Russian patent published in 2002 - IPC

Abstract RU 2185361 C1

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to a method of synthesis of 1,2-dialkyl-1,2-diethylcyclopropanes of the general formula (I) where R1 and R2 mean respectively: n-Pr, n-Pr; n-Bu, n-Bu; Me, n-C5H11 that can be used as a basic component of high-energy fuels, for synthesis of antiviral medicinal preparations, pesticides, low-molecular bioregulating agents. Method involves interaction of dialkylsubstituted acetylenes R1-≡-R2 with triethylaluminium (Et3Al) and diiodomethane (CH2I2)) taken in the mole ratio = 10 : 40 : 20, respectively. Interaction reaction is carried out under normal conditions in hexane medium at stirring for 16-20 h followed by hydrolysis of reaction mass with hydrochloric acid solution. The yield of the end product is 63-84%. EFFECT: high regioselectivity and yields of indicated tetrasubstituted derivatives of cyclopropanes from disubstituted acetylenes. 1 tbl

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RU 2 185 361 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Ramazanov I.R.

Luk'Janova M.P.

Sharipova A.Z.

Dates

2002-07-20—Published

2000-10-19—Filed

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