Diisobutylene oxidation

Dihydro-o-toluic acid, 43, 24 Dihvdeoxycyclopentene, 42, SO Diisobutylene, oxidation to neopentyl... 

Dihydroresorcinol, 41, 56 methylation of, 41, 56 reaction with ethanol to yield 3-ethoxy-2-cyclohexenone, 40, 41 Dihydroxycyclopentene, 42, 50 Diisobutylene, oxidation to neopentyl alcohol by hydrogen peroxide, 40,76... 

A terminal epoxy ring is one case in which methylene C-H groups are influenced by the strained structure and an oxygen atom. Such epoxides, such as epichlorohydrin and 1,2-diisobutylene oxide, have a sharp absorption band at about 6060 cm (1650 nm) with a molar absorptivity of about 0.21/mol-cm. ... 

Purification of industrial oils, kerosene/jet fuel, lubricating oils Mono- dicumyldiphenylamine Mono- dioctyldiphenylamine Dimer fatty acids Purification of xylenes Improvement of bromine number of recycle cumene in phenol plants Improvement of bromine number of recycle ethylbenzene in styrene plants based on liquid pha.se oxidation Alkylation of xylenes with diisobutylenes to mono-/ rr-butyI derivatives Phenyl xylyl ethane... 

In another paper from the Jackson Laboratories of the du Pont Company (Calcott et al., 34) there is reported a repetition of some of the reactions of Simons and Archer, as well as additional ones. Mono-, di-, and 1,2,4,5 tetraisopropylbenzene were obtained from propylene and benzene both l -chloro-i-butylbenzene and di-(l/-chloro)-d-butylben-zene were obtained from 3-chloro-2-methyl-propene-l and benzene p-f-butyltoluene and di-i-butyltoluene were obtained from diisobutylene and toluene tetraisopropylnaphthalene was obtained from propylene and naphthalene naphthyl-stearic acid was obtained from oleic acid and naphthalene mixed isopropyltetrahydronaphthalene was obtained from propylene and tetrahydronaphthalene 2,4,6-triisopropylphenol was obtained from propylene and phenol a mixture of monoisopropylated m-cresols was obtained from propylene and wi-cresol and di-(s-hexyl)-diphenyl oxide was obtained from hexene-3 and diphenyl oxide. 

By way of example, iso-octyl phenol from diisobutylene and phenol reacts quantitatively with ethylene oxide in the presence of an alkaline catalyst to add any desired number of (C2H 0) groups as follows ... 

Mention has already been made of the relatively small reactivity of allyl peroxy radicals compared with other alkyl peroxy radicals. Jost (88, 96) has reasoned that paraffins react by a small number of long chains, whereas olefins oxidize by a large number of short chains. Olefins are thus attacked more readily than paraffins but form less reactive allyl radicals. In addition, during oxidation chain transfer occurs in which alkyl radicals are replaced by allyl radicals. Shorter chains would then be expected. Comparison of the precombustion products of iso-octane and diisobutylene (154) indicates that marked self-inhibition of reaction chains was occurring in the latter case. 

Several hydrocarbons, including benzene, diisobutylene, and methane, do not form cool flames in engines (26, 37, 105). The absence of cool flame radiation does not indicate the absence of preflame reaction, as oxidation products have been isolated from a diisobutylene-air mixture in a motored engine (105). At lean air-fuel ratios, benzene, diisobutylene, and methane have been observed to form blue flames (36). 

Tellurium-containing products were not obtained when tellurium tetrachloride reacted with ethylene. The instability of this addition product makes it a desirable intermediate in the catalytic oxidation of ethylene. Patents for such a process using a solution of tellurium dioxide in hydrobromic/glacial acetic acid were issued - Diisobutylene, 1,4-diphenylbuta-diene, 2,3-diphenylbutadiene, 2,4-hexadiene , allyl bromide, allyl chloride, allyl acetate, and styrene either reduced tellurium tetrachloride to tellurium, produced compounds of indefinite composition, or did not react at all. 

Liquid phase oxidation with potassium permanganate shows a similar trend in the reactivity. The importance of the groups attached to the unsaturated carbon atoms is further shown by experiments on the action of potassium permanganate on more complex olefins.2, The results have shown pentene, cyclohexene, and trimethylethylene are fairly easily oxidized but that diisobutylene and diamylene are surprisingly stable. 

Hydrogen peroxide, oxidation of diisobutylene to neopentyl alcohol by, 40, 76... 

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