P-tolyl ketone

Some di-p-tolyl ketone is produced as a by-product, presumably by Interaction of the lithium salt of the carboxylic acid with the aryl lithium ... 

Evaporate the dried ethereal extract the residue, m.p. 85-90°, weighs 3 3 g. Recrystallise it from alcohol pure di-p-tolyl ketone, m.p. 95°, is obtained. 

Disulphides, 1078 dialkyl, 496, 498 Dithizone, 955 Di-p-tolyl ketone, 930, 931 Dixon gauze rings, 97 n-Dodecane, 237 n-Dodecyl bromide, 282 n-Dodecyl chloride, 275 n-Dodecyl p-toluenesuiphonate, 825 Doebner reaction, 463, 465, 710, 711, 719... 

Propiophenone Dichloroselenopropio- phenone Dichloroselenomethyl-p-tolyl ketone (C6H6.CO.C2H4)2SeCl2 118 60 2 weeks. 

Toluene reacted with III and aluminum chloride much as did benzene, except that yields were lower and tar formation more extensive. From the organic layer methyl p-tolyl ketone was isolated, while acetylation of the product from the aqueous layer led to 1,1-di-p-tolyl- 1-desoxy-D-glucitol hydrate (VI). p-/3-D-Glucopyranosyltoluene, structurally... 

SYNS p-ACETYLTOLUENE ETHANONE, l-(4-METHYLPHENYL)-(9CI) FEMA No. 2677 MELILOTAL p-METHYL ACETOPHENONE 1-METHYD4-ACETYLBENZENE METHYL-p-TOLYL KETONE... 

SYNS p-BENZOPHENONE, METHYL- PHENYL p-TOLYL KETONE USAF DO-54... 

PHENYL p-TOLYL KETONE see MHF750 PHENYLTRICHLOROMETHANE see BFL250 PHENYL TRICHLOROSILANE (DOT) see TJA750 l-PHENYL-4-(3,4,5-... 

A solution of 25 g. (0.13 mole) of phenyl p-tolyl ketone (p. 260) in 130 ml. of warm acetic acid is placed under a reflux condenser. A solution of 35 g. of chromic oxide in a mixture of 80 ml. of water, 130 ml. of acetic acid, and 25 ml. of concentrated sulfuric acid is added slowly through the condenser at such a rate that the temperature of the reaction mixture remains just below the boiling point. The mixture is then refluxed for 45 minutes, and the liquid portion is poured into sufficient water to make a total volume of 2 1. The precipitated solid is filtered off and washed with water until it is white. The solid is suspended in hot water, and potassium hydroxide is added to dissolve as much solid as possible. The mixture is filtered, and the filtrate is acidified with concentrated hydrochloric acid. The precipitated acid is recrystallized from ethanol to give 18-20 g. of p-benzoylbenzoic acid which melts at 197-200° (rapid heating of bath). 

A mixture of 59 g. (0.3 mole) of phenyl p-tolyl ketone (p. 260) and 1 1. of concentrated nitric acid (sp. gr. 1.4) is held at a temperature of 80° for 10 hours. Hood.) The solid that precipitates from the cooled reaction mixture is removed by filtration and washed with nitric acid, water, and aqueous sodium carbonate solution. The solid is recrystallized from ethanol, with an activated carbon treatment, to give 47.4 g. Q5%) of 3-nitro-4-methylbenzophenone, melting at 130-131°. 

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