METHOD FOR PREPARING SUBSTITUTED MONOCYCLIC KETONES Russian patent published in 2004 - IPC

Abstract RU 2227134 C2

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to method for preparing substituted monocyclic C₄-C₂₀.-ketones. Method is based on reaction of liquid-phase oxidation of substituted monocyclic alkenes of the formula C_nH_(2n-2-m)Rim

wherein m has values from 4 to 20; n has value from 1 to (2n-2); Rⁱ means substituents in cycle that represent hydrogen atom, alkyl, alkenyl or aryl radicals, among them comprising functional groups, except for radicals that include non-aromatic carbo- or heterocycles having double bonds C=C with nitrous oxide in the presence of inert gas as a diluting agent at temperature 100-350 C and under pressure of nitrous oxide 1.5-100 atm. Process provides the high selectivity by end products, explosion- -proofing and shows outlook for industrial using. EFFECT: improved preparing method. 5 cl, 3 tbl, 26 ex

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RU 2 227 134 C2

Authors

Dubkov K.A.

Starokon' E.V.

Panov G.I.

Ivanov D.P.

Dates

2004-04-20—Published

2002-03-20—Filed