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US 4,233,244 AGranted
Novel technique for reacting vinyl cyclohexene with nitrobenzene in the presence of a hydrogen-transfer catalyst
AssigneeTexaco Inc.
InventorsJohn A. Patterson, Wheeler C. Crawford, James R. Wilson
Life of this patent
Estimating the term…
Abstract
Vinyl cyclohexene is reacted with nitrobenzene to produce ethylbenzene, aniline, and styrene at 170.degree. C.-360.degree. C. in the presence of a hydrogen transfer catalyst typified by palladium acetylacetonate optionally containing cobalt acetylacetonate or copper oxide.
Claims15
The method which comprises
- passing a charge stream containing vinyl cyclohexene and R'NO.sub.2 into contact with a catalytic amount of, as catalyst, at least one acetylacetonate of a Group VIII metal, thereby forming product streams containing R'NH.sub.2 wherein R' is alkyl, cycloalkyl, aralkyl, aryl or alkaryl;
- and
- recovering said product stream containing R'NH.sub.2.
The method which comprises
- passing a charge stream containing vinyl cyclohexene and nitrobenzene into contact with a catalytic amount of, as catalyst (i) palladium acetylacetonate, and (ii) 0-6 moles, per mole of palladium acetylacetonate, of copper oxide, thereby forming product stream containing aniline;
- and
- recovering said product stream containing aniline.
The method for preparing a product stream containing ethylbenzene which comprises
- passing a charge stream containing vinyl cyclohexene and nitrobenzene into contact with a catalytic amount of, as catalyst (i) one mole of palladium acetylacetonate, (ii) 0-6 moles of cobalt acetylacetonate, and (iii) 0-6 moles of copper oxide thereby forming a product stream containing ethylbenzene;
- and
- recovering said product stream containing ethylbenzene.
The method for preparing a product stream containing ethylbenzene which comprises
- passing a charge stream containing vinyl cyclohexene and nitrobenzene into contact with a catalytic amount of, as catalysts, palladium acetylacetonate thereby forming product stream containing ethyl benzene;
- and
- recovering said product stream containing ethylbenzene.
A novel catalyst which comprises
- (i) an acetylacetonate of at least one Group VIII metal;
- and
- (ii) an oxide of a Group I B metal.
Dependencies are inferred from the claim text.