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2 237 055

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IPC

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Application

2002129859/04, 2002-11-06

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Start date

2002-11-06

(22)

Actual filing date

2002-11-06

(45)

Published

2004-09-27

(72)

Inventor

Dzhemilev U.M.Khusnutdinov R.I.Shchadneva N.A.Lavrent'Eva Ju.Ju.Burangulova R.Ju.Golikova M.T.

(73)

Holder

Gu Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD FOR PREPARING ACETOPHENONE (METHYLPHENYL KETONE) Russian patent published in 2004 - IPC

Abstract RU 2237055 C2

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to the improved method for preparing acetophenone that is used in perfume. Method involves oxidation of ethyl benzene with alkyl hypochlorite generated in situ from carbon tetrachloride and alcohol by effect of catalyst M₀(CO)₆, at temperature 170-180^oC, for 3-6 h in the mole ratio [M₀] : [ethyl benzene] : [CCl₄] : [ROH] = (1:100)-(500:500)-(1500:500)-1500, respectively. Method provides preparing the end product with the yield 72-92%.

EFFECT: improved preparing method.

1 tbl, 2 ex

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RU 2 237 055 C2

Authors

Dzhemilev U.M.

Khusnutdinov R.I.

Shchadneva N.A.

Lavrent'Eva Ju.Ju.

Burangulova R.Ju.

Golikova M.T.

Dates

2004-09-27—Published

2002-11-06—Filed