4-Methylphenol, sodium salt

SYNS CORODINOC cresotol DINITRO-o-CRESOL SODIUM SALT 3,5-DINITRO-o-CRESOL SODIUM SALT 2.4-DINITRO-6-METHYLPHENOL SODIUM SALT DINOC DNOC SODIUM SALT DYNOSOL EK 54 ELGETOL KRENITE (OBS.) KREZONTTE 2-METHYL-4.6-DLNITROPHENOL SODIUM SALT SINOX SODIUM-4,6-DINITRO-o-CRESOXIDE SODIUM SALT of 4,6-DINITRO-o-CRESOL... 

Caswell No. 757A Cresol sodium salt, Cresylic acid sodium salt EINECS 252-154-5 ERA Pesticide Chemical Code 357200 HSDB 5139 Methylphenol sodium salt Phenol, methyl-, sodium salt Sodium cresolale Sodium cresoxide Sodium cresylate. Mixture of 0, m and p-isomers,... 

Chemical name 7.3.1a. 4-Chloro-3-methylphenol, sodium salt ... 

Tetralin hydroperoxide (1,2,3,4-tetrahydro-l-naphthyl hydroperoxide) and 9,10-dihydroanthracyl-9-hydroperoxide were prepared by oxidizing the two hydrocarbons and purified by recrystallization. Commercial cumene hydroperoxide was purified by successive conversions to its sodium salt until it no longer increased the rate of oxidation of cumene at 56°C. All three hydroperoxides were 100% pure by iodometric titration. They all initiated oxidations both thermally (possibly by the bi-molecular reaction, R OOH + RH — R O + H20 + R (33)) and photochemically. The experimental conditions were chosen so that the rate of the thermally initiated reaction was less than 10% of the rate of the photoreaction. The rates of chain initiation were measured with the inhibitors 2,6-di-ter -butyl-4-methylphenol and 2,6-di-fer -butyl-4-meth-oxyphenol. None of the hydroperoxides introduced any kinetically first-order chain termination process into the over-all reaction. 

Allylphenols and derivatives with substituents in the allyl group can, be prepared by direct C-alkylation of the sodium salt of the phenol in benzene solution.16 This method is not as good for the preparation of allylphenols themselves as the one involving preparation of the allyl ether followed by rearrangement, because a mixture of several products is obtained in C-alkylation. Thus the alkylation of p-cresol in benzene with sodium and allyl bromide yields 20% of allyl 4-methylphenyl ether, 8% of allyl 2-allyl-4-methylphenyl ether, 40% of 2-allyl-4-methyl-phenol, and 15% of 2,6-diallyl-4-methylphenol.16 The rearrangement of allyl 4-methylphenyl ether, however, yields 2-allyl-4-methylphenol in practically quantitative yield, and the ether is easily obtained. 

XXXVII). Further reduction (Clemmensen) yielded 3,4,4 -trimethoxy-6,6 -diethyl-l,l -dimethyl-2,3 -diphenyl ether (XXXVIII), which proved to be identical with a synthetic product obtained by the Ullmann condensation of 1,2-dimethoxy-4-ethyl-5-methyl-6-bromobenzene and the sodium salt of 2-methoxy-4-ethyl-5-methylphenol. Oxyacanthine therefore is composed of two benzyltetrahydroisoquinoline rings linked by two oxygen bridges and must have the formula XXVI or XXXI. 

Benzotriazole, sodium salt IH-Benzotriazole, sodium salt. See Sodium benzotriazole 2-(2H-Benzotriazole-2-yl)-4-methylphenol. See Drometrizole... 

Sodium Chiorite Soi n. 50, Tech.] Sodium Chiorite, Tech.. See Sodium chlorite Sodium N-chlorobenzenesulfonamide Sodium, (N-chlorobenzenesulfonamido)-. See Chloramine-B Sodium p-chloro-m-cresol CAS 15733-22-9 EINECS/ELINCS 239-825-8 Synonyms p-Chloro-m-cresol, sodium salt 3-Methyl-4-chlorophenol, sodium salt Sodium p-chloro-m-cresolate Sodium p-chloro-m-methylphenate Sodium 4-chloro-3-methylphenolate Classification Org. compd. 

STRATEGY AND ANSWER Sodium bicarbonate will remove a proton from a carboxylic acid to form a water-soluble carboxylate salt, but sodium bicarbonate will not remove a proton from a typical phenol. Sodium hydroxide will remove a proton from both a carboxylic acid and a phenol to form salts in each case. Thus, in (a) benzoic acid will be found in the water layer as its sodium salt, whereas in (b) 4-methylphenol will remain in its neutral form and be found predominantly in the ether layer. In (C) and (d) both benzoic acid and 4-methylphenol wiU be found in the aqueous layer as their corresponding salts. 

Methylphenol, CHjCgH jOH 10.26), is only slightly soluble in water, but its sodium salt, CHjCgH, Na+, is quite soluble in water. In which solution(s) will 4-methylphenol dissolve ... 

PCMC sodium salt, sodium-4-chloro-3-methylphenolate BAYER AG... 

The condensation of 4-chloro-2-methylphenol with sodium salt of hydroxyl diethyl ester in the presence of a dehydrating agent such as concentrated sulfuric acid gives spirodilactone. A plausible mechanism comprises a transesterification of the oxaloacetate ester and 4-chloro-2-methylphenol to afford the ketoester 44. Then intermediate 36 submits to an intramolecular condensation/dehydration to give 45, which could,... 

The CH2CI2 solution can now be extracted with an aqueous solution of sodium hydroxide. This will remove the 4-methylphenol (as its sodium salt). Acidification of the aqueous extract will cause the formation of 4-methylphenol as a water-insoluble layer. The 4-methylphenol can then be extracted into ether, the ether removed, and file 4-methylphenol purified 1 distillation. 

The fact that phenols are weakly acidic, whereas alcohols are neutral, provides a convenient way to separate phenols from water-insoluble alcohols. Suppose that we want to separate 4-methylphenol from cyclohexanol. Each is only slightly soluble in water therefore, they cannot be separated on the basis of their water solubility. They can be separated, however, on the basis of their difference in acidity. First, the mixture of the two is dissolved in diethyl ether or some other water-immiscible solvent. Next, the ether solution is placed in a separatory funnel and shaken with dilute aqueous NaOH. Under these conditions, 4-meth-ylphenol reacts with NaOH to give sodium 4-methylphenoxide, a water-soluble salt. The upper layer in the separatory funnel is now diethyl ether (density 0.74 g/cm ), containing only dissolved cyclohexanol. The lower aqueous layer contains dissolved sodium 4-meth-ylphenoxide. The layers are separated, and distillation of the ether (bp 35°C) leaves pure cyclohexanol (bp 161°C). Acidification of the aqueous phase with 0.1 M HCl or another... 

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