Chloro-2-propanone

CH2CI-CO-CH3. Colourless lachrymatory liquid b.p. 119°C. Manufactured by treating propanone with bleaching powder or chlorine. It is used as a tear gas and is usually mixed with the more potent bromoacetone. chloro acids Complex chloroanions are formed by most elements of the periodic table by solution of oxides or chlorides in concentrated hydrochloric acid. Potassium salts are precipitated from solution when potassium chloride is added to a solution of the chloro acid, the free acids are generally unstable. 

BENZYL CHLOROMETHYL KETONE (2-Propanone, l-chloro-3-phenyl-)... 

A. N-Trijluoroacetanilide. In a two-necked, round-bottomed flask fitted with a thermometer, a Drierite tube, and a magnetic stirring bar are placed 4.56 ml. (4.66 g., 0.050 mole) of aniline [Benzenamine] (Note 1) and 15 ml. of dimethyl sulfoxide (Note 2). The resulting solution is stirred and cooled in an ice water bath, and when the internal temperature has dropped to 10-15°, 21.5 g. (0.10 mole) of 1,1,1-tri-chloro -3,3,3 -trifiuoroacetone [2 -Propanone, 1,1,1 -trichloro-3,3,3-tri-fluoro-] (Note 3) is added in portions through the condenser. A mild exotherm results, and the addition is extended over ca. 5 minutes to... 

Propanone, l-chloro-l,l,3,3,3-pentafluoro-] (b.p. 7.8° available from PCR, Inc. or Allied Chemical Corp.) are combined in a flask fitted with a dry ice condenser and a magnetic stirring bar. The refluxing mixture is stirred for 4-0 hours and then allowed to warm gradually to room temperature. The contents of the flask are extracted three times with anhydrous ether, and the combined extracts are distilled at atmospheric pressure. After the ether has been removed, continued distillation gives 22.8-28.5 g. (55-69%) of l,l,l-trichloro-3,3,3-trifluoroacetone, b.p. 83.5-84.5°, infrared (film) 1790 cm. - This compound is stored at room temperature in a tightly stoppered bottle. In the absence of reliable toxicity data, it should be handled with normal precautions. 

Propanone, 1-chloro- [78-95-5], 73 2-Propanone, l-chloro-1,1,3,3,3 penta fluoro- [79-53-8], 124 2-Propanone, l-(methylthio) [14109-72... 

Acetic acid, vinyl- [3-Butenoic acid], 49 Acetone, ammo-, semicarbazone, hydrochloride [Hydrazinecarboxamide, 2-[l-(ammomethyl)ethyhdene], hydro chloride], correction note, 127 Acetone, chloro- [2 Propanone, 1-chloro ],... 

Propanone, 1-phenyl- [Benzyl methyl ketone), 55,94 Propene, 0 >l-bromo- 55, 108 Propene, (Z)-l-bromo- 55, 108 Propene, (F) 1 chloro-, 55, 104 Propene, (Z) 1 chloro, 55, 107 2-PROPENENITRILE, 2-(l,l-dimcthylethyl)... 

Synonyms Monochloroacetone chloroprop-anone l-chloro-2-propanone acetonyl chloride... 

Bupropion The synthesis of bupropion, I-3(-chlorophenyl)-2-[(I,I-dimethyIethyl)amino]-I-propanone (7.3.5), begins with the reaction of 3-chlorobenzonitriIe, with ethylmagnesium bromide to give 3-chloropropiophenone (7.3.3). Brominating this with bromine gives 3-chloro-a-bromopropiophenone (7.3.4), which on reaction with tert-butylamine gives bupropion (7.3.5) [54-58]. 

Bromo-3-chloro-2,2-dimethoxypropane 2-Propanone, l-bromo-3-chloro-,... 

Propanol, titanium (4+) salt, 65, 230 2-Propanone, l-bromo-3-chloro-, dimethyl acetal, 65, 32 Propargyl bromide (106-96-7), 66, 77, 79, 86... 

Nitrobromoform, Bromoacquinite, Tribromonitromethane, Picfume bromide Chloroacetone, l-Chloro-2-propanone Cyanogen, EthanedinitrUe, Dicyan, Oxalic acid dinitrUe, Dicyanide Chloroacetone, l-Chloro-2-propanone... 

Nitrobromoform, Bromoacquinite, Tribromonitromethane, Picfume bromide Chloroacetone, l-Chloro-2-propanone... 

In a hood, to a well-stirred dispersion of 62 gm (1.35 moles) of methyl-hydrazine, 175 ml of chlorobenzene, and 20 gm of powdered, anhydrous sodium sulfate is added dropwise, with cooling, 61 gm (0.663 mole) of freshly distilled l-chloro-2-propanone. After the addition has been completed, the reaction mixture is stirred for 1 hr. The moist sodium sulfate is separated by filtration and the filtrate is distilled. The fraction boiling between 60°C and 64°C is collected as product, yield 16.8 gm (31 %) of a yellow liquid. On redistillation the boiling point is raised slightly to 61°-64°C, index 1.4300. 

Ethanoate ion in 2-propanone reacts with 1-chloro-2-butene to give only 2-butenyl ethanoate, and with 3-chloro-1-butene to give only 1-methyl-2-propenyl ethanoate. 

Bromo-2-butene (cis and trans mixture) 2-Butene, 2-bromo- (13294-71-8), 65, 42 1 -Bromo-3-chloro-2,2-dimethoxypropane 2-Propanone, 1 -bromo-3-chloro-,... 

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