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Benzenes alkylated

Styrene is manufactured by alkylating benzene with ethene followed by dehydrogenation, or from petroleum reformate coproduction with propylene oxide. Styrene is used almost exclusively for the manufacture of polymers, of which the most important are polystyrene, ABS plastics and styrene-butadiene rubber. U.S. production 1980 3 megatonnes. [Pg.374]

Oxidation of side chains. Aromatic nitro compounds that contain a side chain (e.g., nitro derivatives of alkyl benzenes) may be oxidised to the corresponding acids either by alkahne potassium permanganate (Section IV,9, 6) or, preferably, with a sodium dichromate - sulphuric acid mixture in which medium the nitro compound is more soluble. [Pg.529]

Data for alkyl-benzenes are collected in table 9.1, and for substituted-alkyl compounds in table 9.2. [Pg.163]

The importance of a primary steric effect in the nitration of alkyl-benzenes has been mentioned ( 9.1.1). The idea was first introduced by Le Fevre to account for the fact that -alkyltoluenes (alkyl = Et, -Pr,68a t-Bu ) are nitrated mainly adjacent to the methyl group. Without the rate data reported for the alkylbenzenes the effect might equally well have been accounted for by hyperconjugation. [Pg.184]

Hammett s equation, and substituent effects, 137-43 heteromolecules, 130 Holleman s product rule, 3 hyperconjugation, in nitration of alkyl-benzenes, 165-7 in nitration of positive poles, 169... [Pg.239]

Alkyl halides react with benzene m the presence of aluminum chloride to yield alkyl benzenes... [Pg.481]

Secondary alkyl halides react by a similar mechanism involving attack on benzene by a secondary carbocation Methyl and ethyl halides do not form carbocations when treated with aluminum chloride but do alkylate benzene under Friedel-Crafts conditions The aluminum chloride complexes of methyl and ethyl halides contain highly polarized carbon-halogen bonds and these complexes are the electrophilic species that react with benzene... [Pg.482]

In an attempt to prepare propylbenzene a chemist alkylated benzene with 1 chloropropane and aluminum chloride However two isomeric hydrocarbons were obtained m a ratio of 2 1 the desired propylbenzene being the minor component What do you think was the major product How did it anse ... [Pg.483]

Aromatic. Aromatic feedstreams (C-8, C-9, C-10) derived from the steam cracking of petroleum distillates are composed of styrene, iadene, vinyltoluenes (eg, meta- and i ra-methylstyrene), and their respective alkylated analogues. A typical aromatic feedstream might contain 50% reactive olefins with the remainder being alkylated benzenes and higher aromatics. [Pg.352]

Alkylation. Benzene and phenol feedstocks are readily alkylated under Friedel-Crafts conditions to prepare extensive families of alkylated aromatics. These materials generally are intermediates in the production of surfactants or detergents such as linear alkylbenzenesulfonate (LABS) and alkylphenolethoxylate (APE). Other uses include the production of antioxidants, plasticizers, and lube additives. [Pg.436]

Wax Cracking. One or more wax-cracked a-olefin plants were operated from 1962 to 1985 Chevron had two such plants at Richmond, California, and Shell had three in Europe. The wax-cracked olefins were of limited commercial value because they contained internal olefins, branched olefins, diolefins, aromatics, and paraffins. These were satisfactory for feed to alkyl benzene plants and for certain markets, but unsatisfactory for polyethylene comonomers and several other markets. Typical distributions were C 33% C q, 7% 25% and 35%. Since both odd and... [Pg.441]

Most of the industrially important alkyl aromatics used for petrochemical intermediates are produced by alkylating benzene [71-43-2] with monoolefins. The most important monoolefins for the production of ethylbenzene, cumene, and detergent alkylate are ethylene, propylene, and olefins with 10—18 carbons, respectively. This section focuses primarily on these alkylation technologies. [Pg.47]

Friedel-Grafts Reactions. In the presence of Friedel-Crafts catalysts, succinic anhydride reacts with alkyl benzenes to form alkylben2oylpropionic acids (103), eg, the reaction with iadane gives a 97% yield of 4-oxo-(4,5-iQdanyl)butyric acid (eq. 6). [Pg.536]

Cumene as a pure chemical intermediate is produced in modified Friedel-Crafts reaction processes that use acidic catalysts to alkylate benzene with propylene (see Alkylation Friedel-CRAFTSreactions). The majority of cumene is manufactured with a soHd phosphoric acid catalyst (7). The remainder is made with aluminum chloride catalyst (8). [Pg.363]

ABS Alkyl benzene sulfonate MSDA Material safety data sheets... [Pg.2153]

The detailed study of chemical composition, stmcture, surface, shape and sizes of particles of fine-dispersed zeolite powder by EPMA will provide useful recommendations to improve the technology of producing alkanes and alkyl benzenes catalysts. [Pg.438]

Naphthalene, xylenes and alkyl benzenes can be purified by sulfonation with concentrated sulfuric acid and crystallisation of the sodium sulfonates. The hydrocarbon is distilled out of the mixture with superheated steam. [Pg.58]

A number of examples of nucleophilic capture of n-complexes have also been uncovered in the study of nitration of alkylated benzenes in acetic acid. For example, nitration of 3 at 0°C leads to formation of 4 with acetate serving as the nucleophile ... [Pg.556]

Sulphur oxides G Sulphur dioxide Sulphur trioxide Coal distillation Combustion of coal and heavy fuel oil Detergents (sulphonation of alkyl benzenes) Electricity generation... [Pg.497]

Industrial chemicals, including those used for the manufacture of detergents such as linear alkyl benzene (LAB) and of coatings, dyestuffs, agrochemicals, pharmaceuticals, and explosives. [Pg.54]


See other pages where Benzenes alkylated is mentioned: [Pg.92]    [Pg.92]    [Pg.62]    [Pg.66]    [Pg.165]    [Pg.239]    [Pg.240]    [Pg.242]    [Pg.242]    [Pg.232]    [Pg.553]    [Pg.561]    [Pg.263]    [Pg.264]    [Pg.244]    [Pg.171]    [Pg.175]    [Pg.480]    [Pg.86]    [Pg.86]    [Pg.102]    [Pg.186]    [Pg.409]    [Pg.2022]    [Pg.2210]    [Pg.66]   
See also in sourсe #XX -- [ Pg.101 ]

See also in sourсe #XX -- [ Pg.101 ]




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1-Decene benzene alkylation with

2- Chlorobutane benzene alkylation with

ALKASURF Alkyl Benzene Sulfonates

Acylation-reduction, alkylation benzene

Alkyl benzene standards

Alkyl benzene standards values

Alkyl benzene sulfonate

Alkyl benzene sulfonate , with

Alkyl benzene sulphonates

Alkyl benzene sulphonic acid

Alkyl benzenes Friedel-Crafts alkylation

Alkyl benzenes also react at the ortho and para positions

Alkyl benzenes electron density

Alkyl benzenes halogenation

Alkyl benzenes react at the ortho and para positions a donor substituents

Alkyl benzenes reduction

Alkyl benzenes synthesis

Alkyl benzenes under ionic conditions

Alkyl benzenes under radical conditions

Alkyl benzenes, separation

Alkyl groups substituted benzenes

Alkyl subs benzenes

Alkyl-Substituted Benzenes Homologous

Alkyl-substituted benzene

Alkylated benzenes alkylbenzenes

Alkylated benzenes and

Alkylated benzenes and naphthalenes

Alkylated benzenes linear

Alkylated of benzene

Alkylation of Benzene by Propylene to Cumene

Alkylation of benzene

Alkylation of benzene with ethylene

Alkylation reactions of benzene

Alkylation, of benzene derivatives

Alkylations benzene

Alkylbenzene sulfonate alkyl-benzene

Basis benzene alkylation

Benzene Fnedel Crafts alkylation

Benzene Friedel-Crafts alkylation

Benzene Friedel-Crafts alkylations

Benzene alkyl derivatives, nitration

Benzene alkyl groups

Benzene alkyl substituted, oxidation

Benzene alkylation

Benzene alkylation

Benzene alkylation with ethene

Benzene alkylation with olefins

Benzene alkylation, base catalyzed

Benzene alkylation, with ethylene

Benzene and its Alkyl Derivatives

Benzene derivatives Friedel-Crafts alkylation

Benzene derivatives alkylation

Benzene detergent alkylates

Benzene dichloromethyl alkyl ethers

Benzene ethylene alkylation

Benzene higher alkylated

Benzene poly-alkylated

Benzene with alkyl halides

Benzene, 1,3,5-tribromo with primary alkyl Grignard reagents

Benzene, acylation Friedel-Crafts alkylation

Benzene, acylation alkyl substituted, nitration

Benzene, acylation alkylation

Benzene, alkylation Friedel-Crafts reactions

Benzene, alkylation bromination

Benzene, alkylation chlorination

Benzene, alkylation discovery

Benzene, alkylation disulfonation

Benzene, alkylation iodination

Benzene, alkylation molecular orbitals

Benzene, alkylation nitration

Benzene, alkylation reaction with

Benzene, alkylation resonance

Benzene, alkylation stability

Benzene, alkylation structure

Benzene, alkylation sulfonation

Benzene, alkylation toxicity

Benzene, alkyloxidative degradation via alkyl radical addition

Benzene, nucleophilic alkylation

Benzene, trichlorodialkylation coupling reactions with primary alkyl Grignard

Benzene, trichlorodialkylation with primary alkyl Grignard reagents

Benzenes alkyl

Benzenes alkyl

Catalysts benzene alkylation

Chemical benzene alkylation

Cumene, benzene alkylation

Cyclic mechanism alkyl-substituted benzenes

Cyclohexane benzene alkylation with

Cyclohexene alkylation of benzene with

Energy benzene alkylation

Enhancer alkyl benzene synthesis

Ethylbenzene by Alkylation of Benzene with Ethylene

Ethylbenzene, by alkylation of benzene

Ethylene alkylation of benzene

Feed benzene alkylation

Friedel Crafts alkylation of benzene

Furan, 2-methyltetrahydroalkylation benzene alkylation

Halogenation of alkyl benzenes

Hydrogen peroxide reaction with alkyl benzenes

Hydrogenation of Alkyl-Substituted Benzenes

Isopropyl benzene alkylation

Ketone to alkyl benzenes

Kinetics benzene alkylation

Linear alkyl benzene

Linear alkyl benzene product properties

Linear alkyl benzene production

Linear alkyl benzene sulfonates

Linear alkyl benzene sulphonates

Manufacturing benzene alkylation

Mass benzene alkylation

Mercury lamps alkyl benzenes with

Methane bond alkyl benzenes

Nitro, acids alkyl benzenes

Of alkyl benzenes

Oxidation alkyl benzenes

Oxidation from alkyl benzenes

Oxidation of alkyl benzenes

Phenols =* alkyl benzenes

Phenols, from alkyl benzenes

Process benzene alkylation

Processes benzene alkylation process chemistry

Project benzene alkylation

Propionic acid, 2- benzene alkylation with

Propionic acid, methyl-2- benzene alkylation with

Reaction benzene alkylation

Reactive benzene alkylation

Reactor selection, benzene alkylation

Simulation benzene alkylation

Sodium alkyl benzene sulfonate

The Alkylation of Benzene by Acylation-Reduction

The Friedel-Crafts Alkylation of Benzene

Toluene-benzene reactivity ratios in Friedel-Crafts alkylation reactions

Y-Valerolactone benzene alkylation

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