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2 256 655

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Application

2004101942/04, 2004-01-27

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Start date

2004-01-27

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Actual filing date

2004-01-27

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Published

2005-07-20

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Inventor

Uskov A.M.Nesterova L.M.Kharitonov A.V.Belov M.Ju.Neborako D.N.Kharauzov E.S.Aldoshin S.M.Dorokhov V.G.Savchenko V.I.

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Holder

Zakrytoe Aktsionernoe Obshchestvo Firma

METHOD FOR PREPARING 1-(4-CHLOROPHENYL)-3-(1,2,4-TRIAZOL-1-YL-METHYL)-4,4-DIMETHYLPENTANE-3- OL Russian patent published in 2005 - IPC

Abstract RU 2256655 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention describes the improved method for preparing 1-(4-chlorophenyl)-3-(1,2,4-triazol-1-yl-methyl)-4,4-dimethylpentane-3-ol. Method involves interaction of 1,2,4-triazole with 2-(4-chlorophenylethyl)-2-tert.-butyloxirane in the presence of potassium hydroxide in n-butanol medium. Process is carried out in reaction mixture directly containing 2-(4-chlorophenylethyl)-2-tert.-butyloxirane prepared by interaction of 4,4-dimethyl-1-(4-chlorophenyl)-pentane-3-one with trimethylsulfonium methylsulfate in n-butanol medium at 50-55°C without preliminary isolation of oxirane and its purification. Method provides reducing number of operations, time for carrying out the process and to retain high yield of product.

EFFECT: improved method for preparing.

4 cl, 3 ex

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RU 2 256 655 C1

Authors

Uskov A.M.

Nesterova L.M.

Kharitonov A.V.

Belov M.Ju.

Neborako D.N.

Kharauzov E.S.

Aldoshin S.M.

Dorokhov V.G.

Savchenko V.I.

Dates

2005-07-20—Published

2004-01-27—Filed