2.4- Dimethyl-6-t-butylphenol

Dimethyl-6-t-butylphenol Hydrogen chloride Ethylene diamine p-Toluene sulfonic acid... 

Dimethyl-6-t-butylphenol 4-Toluenesulfonic acid Sodium cyanide Hydrogen chloride... 

BHT 6-t-Butyl-2,4-xylenol 2,6-Di-t-butylphenol N,N -Di-s-butyl-p-phenylenediamine N,N -Di-(1,4-dimethylpentyl)-p-phenylenediamine N,N -Diisopropyl-p-phenylenediamine 2,4-Dimethyl-6-t-butylphenol N,N -Di (n-octyl)-p-phenylenediamine... 

Butyl lactate Diamyl phenol 2,4-Dimethyl-6-t-butylphenol... 

Dimethyl-6-t-butylphenol a-lsobutylphenethyl alcohol 1-Phenyl-3-methyl-3-pentanol... 

It is of interest that mixtures of 3- and 4-methylphenols are usually employed for the preparation of the di-tert-butyl compounds, namely, 4-methyl-2,6-di-tert-butylphenol and 5-methyl-2,4-di-tert-butylphenol from the butylation reaction which is carried out at 40-50°C and atmospheric pressure with sulphuric add (2%) as the catalyst. t-Butylation occurs ortho to the hydroxyl group. The products are separable by fractional distillation into the pure compounds. 2,4-and 2,5-Xylenols are employed as a mixture to provide, under the same reaction conditions, a source of the required 2,4-dimethyl-6-tert-butylphenol which has an important use as a stabiliser in petroleum fuels. The products from the reaction with iso-butene are procesed to remove alkali-soluble unchanged 2,5-xylenol together with the mono tert-butyl derivative and the alkali-insoluble 2,4-dimethyl-6-tert-butylphenol is recovered by distillation... 

Fuels and Lubricants. Gasoline and jet-engine fuels contain unsaturated compoimds that oxidize on storage, darken, and form gums and deposits. Radical scavengers such as 2,4-dimethyl-6-terf-butylphenol [1879-09-0], 2,6-di-te/t-butyl-p-cresol (1), 2,6-di-ferf-butylphenol [128-39-2], and alkylated paraphenylene diamines are used in concentrations of about 5-10 ppm as stabilizers. 

Irganox 3052. See 2,2 -Methylenebis (4-methyl-6-t-butylphenol) monoacrylate Irganox 3114. See Tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate Irganox 3790. See 1,3,5-Tris (4-t-butyl-3-hydroxy-2,6-dimethyl benzyl)-1,3,5-triazine-... 

Synonyms 2,2 -Bis (6-t-butyl-p-cresyl) methane BKF BPH 2,2 -Methylenebis (6-t-butylcresol) 2,2 -Methylenebis (6-t-butyl-p-cresol) 2,2 -Methylenebis (4-methyl-6-t-butylphenol) Phenol, 2,2 -methylenebis-6-[(1,1-dimethyl)-4-methyl-]... 

Methylenebis (1,1-dimethyl-3-phenylurea). See Methylenebis (phenyl dimethyl urea) 2,2 -Methylenebis (4-ethyl-6-t-butylphenol)... 

Propanoic acid, 2,2-dimethyl-, 2-ethylbutyl ester. See Isohexyl neopentanoate 2-Propanoic acid, 2-(1,1-dimethylethyl)-6-[[3-(1,1 -d i methylethyl )-2-hydroxy-5-methyl phenyl] methyl]-4-methyl phenyl ester. See 2,2 -Methylenebis (4-methyl-6-t-butylphenol) monoacrylate... 

Thiobisethane. See Ethyl sulfide 2,2 -Thiobisethanol. See Thiodiglycol Thiobismethane. See Dimethyl sulfide 2,2 -Thiobis (4-methyl-6-t-butylphenol). See 2,2 -Thiobis-(6-t-butyl-4-methylphenol) 4,4 -Thlobls (2-methyl-6-t-butylphenol). See 4,4 -Thiobis (6-t-butyl-o-cresol)... 

Chloromethyl)-6-(1,1-dimethylethyl)-2,4-dimethyl-phenol. 6-t-Butyl-3-chloromethyl-2,4-xylenol 3-(Chloro-methyl)-6-(1,1-dimethylethyl)-2,4-dimethylphenol 2,4-Dimethyl-3-(chloromethyl)-6-t-butylphenol EINECS 245-6974 Phenol, 6-t-butyl-3-(chloromethyl)-2,4-dimethyl- Phenol, 3- chloromethyl)-6-(1,1-dimethyl-ethyl)-2,4-dimethyl-. 

Thiobis (3-methyl-6-t-butylphenol) 1,1 -Thiobis (2-methyl-4-hydroxy-5-t-butylbenzene). See4,4 -Thiobis-6-(t-butyl-m-cresol) 3,3 -Thiobis (methyl propionate). See Dimethyl thiodipropionate... 

The reagents which have been used here to illustrate these interesting reactions are periodic acid for the oxidation of 2,6-di-t-butylphenol,56 and a Celite-supported silver carbonate reagent for the oxidation of 2,6-dimethyl phenol, and 2,4,6-trimethylphenol57 (Expt 6.129). 

Ethylidene bis(4,6-di-t-butylphenol), 2,2 -Ethylidenebis(4,6-di-t-butylphenol)i EINECS 252-816-3 Phenol, 2,2 -ethylidenebis(4,6-bis(1,1-dimethyl-ethyl)- Vanox 1290, Antioxidant oxidative inhibitor for polymers process stabilizer for polyolefins stabilizer for PU and PS, Crystals mp 162-164°, Vanderbilt R.T. Co. Inc. 

Alkofen B 2,4,6-Tri-t-butylphenol 2,4,6-Tri-tert-butyl-1-hydroxybenzene 2,4,6-Tri-tert-butylphenol CCRIS 5845 2,4,6-Tris(1,1-dimethylethyl)phenol EINECS 211-989-5 NSC 14459 P 23 Phenol, 2,4,6-lri-tert-butyl- Phenol, 2,4,6-tris(1,1-dimethylethyl)- TM02 Tris(1,1-dimethyl-ethyl)phenol Voidox. Solid mp = 131° bp = 278° (P = 0.864 Xm = 280 nm (cyclohexane) insoluble in H2O, alkali, soluble in EtOH, Me2CO, CCI4. 

Methyl-2,6-di-t-butylphenol Methyl di-t-butylphenol. See BHT 4-Methyl-7-(diethylamino) coumarin. See 7-Diethylamino-4-methylcoumarin Methyl diglyme. See Diethylene glycol dimethyl ether Methyl digol. See Methoxydiglycol Methyl 1,1-dimethylethyl ether. See Methyl t-butyl ether 4-Methyl-1,3-dioxolan-2-one. See Propylene carbonate Methyl dodecanoate Methyl n-dodecanoate Methyl dodecylate. See Methyl laurate... 

Phenol, 2,4-diamino-, dihydrochloride. See 2,4-Diaminophenol hydrochloride Phenol, 2,4-dibromo-. See 2,4-Dibromophenol Phenol, 2,6-di-t-butyl-. See 2,6-Di-t-butylphenol Phenol, 2,4-dichloro-. See 2,4-Dichlorophenol Phenol, 2,6-dichloro-. See 2,6-Dichlorophenol Phenol, 2,4-dichloro-3,5-dimethyl-. See Dichloro-m-xylenol... 

Di-t-butyl-4-hydroxybenzolc acid, n-hexadecyl ester 3,5-Di-t-butyl-4-hydroxyhydrocinnamic acid, 1,3,5-tris (2-hydroxyethyl)-s-triazine-2,4,6-(1H,3H,5H)-trione triester Dicetyl thiodipropionate Dicyandiamide Didodecyl-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate Dimyristyl thiodipropionate p,p -Dioctyldiphenylamine 2,4-Di-t-pentyl-6-(1-(3,5-di-t-pentyl-2-hydroxyphenyl) ethyl) phenyl acrylate Distearyl pentaerythrityl diphosphite Drometrizole Ethylenebis (oxyethylene) bis (3-t-butyl-4-hydroxy-5-methylhydrocinnamate) 2,2 -Ethylidenebis (4,6-di-t-butylphenol) 2,2 -Ethylidenebis (4,6-di-t-butylphenyl) fluorophosphonite N,N -Hexamethylene bis (3,5-di-t-butyl-4-hydroxyhydrocinnamamide) Hexamethylenebis (3,5-di-t-butyl-4-hydroxycinnamate)... 

Dilauryl phosphite Dimethyl hydrogen phosphite p,p -Dioctyldiphenylamine 4,4 -Di-t-octylphenylamine Diphenylamine Distearyl thiodipropionate Ditridecyl thiodipropionate Ethylene glycol bis [3,3-bis (3-t-butyl-4-hydroxyphenyl) butyrate] 2,2 -Ethylidenebis (4,6-di-t-butylphenol) Hydrocinnamic acid... 

Acetylacetone p-t-AmyI phenol 3-Bromochloro-5,5-dimethyl hydantoin 6-t-Butyl-m-cresol Calcium hydrogen sulfite Cetalkonium chloride Cetethyidimonium bromide Cetrimonium bromide Cetrimonium tosylate Cetylpyridinium bromide Chlorophene Cupric sulfate anhydrous Cupric sulfate pentahydrate Cyclohexanol Dibehenyl/diarachidyl dimonium chloride 1,3-Dibromo-5,5-dimethyl hydantoin 2,4-Di-t-butylphenol p-Dichlorobenzene Dicocodimonium chloride Dicocodimonium methosulfate... 

Coriander (Coriandrum sativum) oil Cupric sulfate anhydrous Dehydroacetic acid Dimethyl dicarbonate Disodium EDTA Edetic acid Erythorbic acid Ethyl vanillate Ferulic acid Formic acid Fructose Fumaric acid Glucose oxidase Guaiac gum Heptyl paraben Hexamethylenetetramine 4-Hydroxymethyl-2,6-di-t-butylphenol Isobutylparaben Isopropyl citrate Isopropylparaben Lactic acid Methyl paraben Myristalkonium chloride Natamycin Nisin o-Phenylphenol Potassium acetate Potassium bisulfite Potassium butyl paraben Potassium diacetate... 

For reasons outlined above, deltamethrin in commercial solutions contains the radical scavenger 2,6-dimethyl, 4-t butylphenol. For other proposals for stabilizations see Sect. B.3.4.2 Vol. 4 of this series. 

The synthesis of butralin (dibutalin, 3) starts with 4-/-butylphenol, the nitration of which with a mixture of nitric acid and acetic acid gives 4-t-butyl-2,6-dinitrophenol in a good yield. The dinitrophcnol is reacted in dimethyl formamide solution with phosphorus oxychloride to give l-/-butyl-4-chloro-2,6-dinitro-benzene. The reaction of the latter with jec-butylamine gives butralin (Bishop el al.,... 

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