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Dichloroacetyl chloride

Dichloroacetic acid is produced in the laboratory by the reaction of chloral hydrate [302-17-0] with sodium cyanide (31). It has been manufactured by the chlorination of acetic and chloroacetic acids (32), reduction of trichloroacetic acid (33), hydrolysis of pentachloroethane [76-01-7] (34), and hydrolysis of dichloroacetyl chloride. Due to similar boiling points, the separation of dichloroacetic acid from chloroacetic acid is not practical by conventional distillation. However, this separation has been accompHshed by the addition of a eotropeforming hydrocarbons such as bromoben2ene (35) or by distillation of the methyl or ethyl ester. [Pg.89]

Oxidation. Oxidation of 1,1,1,2-tetrachloroethane in the presence of ionizing radiation gives dichloroacetyl chloride, Cl CHCOCl (117). The gas-phase photochlorination of 1,1,1,2-tetrachloroethane in the absence and presence of oxygen has been studied (115). [Pg.13]

Heating a mixture of tetrachloroethane vapors and chlorine over active charcoal at 400°C gives carbon tetrachloride and hydrogen chloride (125). Miscellaneous. Air oxidation of 1,1,2,2-tetrachloroethane under ionizing radiation gives dichloroacetyl chloride (117). Contact of... [Pg.14]

Compound (1) decomposes to form dichloroacetyl chloride, which in the presence of water decomposes to dichloroacetic acid and hydrochloric acid (HCl) with consequent increases in the corrosive action of the solvent on metal surfaces. Compound (2) decomposes to yield phosgene, carbon monoxide, and hydrogen chloride with an increase in the corrosive action on metal surfaces. [Pg.23]

The method is essentially that discovered by Boeseken and Prins - and studied further by Prinsd Pentachloroethane can be used in place of tetrachlorethylene, as it is converted into the unsaturated compound in the presence of aluminum chloride. irwiyw.-Heptachloropropane has been obtained also by the action of phosphorus pentachloride on pentachloroacetone, and by treating dichloroacetyl chloride with aluminum chloride. ... [Pg.59]

D1CHLORO-5-PHENYL ISOCYANATE DICHLOROACETIC ACID DICHLOROACETYL CHLORIDE DICHLOROANILINE... [Pg.215]

The dichloroacetamide of indole, formed by refluxing a mixture of dichloroacetyl chloride in dichloroethane, is cleaved upon treatment with TEA (CH2CI2, rt). ... [Pg.627]

The OH endgroups of hardly soluble polyesters of the PET family can be esterified by excess 3,5-dinitrobenzoic acid in nitrobenzene and back titrated by a solution of NaOH in ethylene glycol418 or derivatized by dichloroacetyl chloride... [Pg.94]

The reaction of volatile chlorinated hydrocarbons with hydroxyl radicals is temperature dependent and thus varies with the seasons, although such variation in the atmospheric concentration of trichloroethylene may be minimal because of its brief residence time (EPA 1985c). The degradation products of this reaction include phosgene, dichloroacetyl chloride, and formyl chloride (Atkinson 1985 Gay et al. 1976 Kirchner et al. 1990). Reaction of trichloroethylene with ozone in the atmosphere is too slow to be an effective agent in trichloroethylene removal (Atkinson and Carter 1984). [Pg.211]

Acetic anhydride Propionic anhydride Butyric anhydride Maleic anhydride Phthalic anhydride Acetyl chloride Propionyi chloride Butyryl chloride Hexonyl chloride Benzoyl chloride Oxalyl chloride Chloroacetyl chloride Dichloroacetyl chloride Trichloroacteyl dtloride... [Pg.329]

Dichloroacetophenone has been prepared by chlorination of acetophenone with and without aluminum chloride 1 by action of dichloroacetyl chloride upon benzene and aluminum chloride 1 by action of hypochlorous acid upon phenylacetylene 2 by heating trichloromethylphenylcarbinol 3 and by chlorination of phenylacetylene in alcohol.4... [Pg.89]

CHLORO-1,1-DIFLUOROETHYLENE TRICHLOROETHYLENE DICHLOROACETYL CHLORIDE TRICHLOROACETALDEHYDE PENTACHLOROETHANE TRIFLUOROETHENE TRIFLUOROACETIC ACID PENTAFLUOROETHANE ACETYLENE... [Pg.59]

See other pages where Dichloroacetyl chloride is mentioned: [Pg.286]    [Pg.547]    [Pg.590]    [Pg.302]    [Pg.118]    [Pg.204]    [Pg.65]    [Pg.75]    [Pg.186]    [Pg.27]    [Pg.2346]    [Pg.115]    [Pg.114]    [Pg.674]    [Pg.116]    [Pg.151]    [Pg.482]    [Pg.45]    [Pg.121]    [Pg.54]    [Pg.48]    [Pg.172]    [Pg.555]    [Pg.816]    [Pg.859]    [Pg.61]    [Pg.178]    [Pg.6]    [Pg.32]    [Pg.87]    [Pg.114]    [Pg.152]    [Pg.178]    [Pg.1036]   
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Dichloroacetyl chloride, dichloroketen from

Eliminations from dichloroacetyl chloride

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