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2-Chloroethyl methyl ketone

CH3—CO—CHjj—CHgCl and Cl—CHg—CHg—CO—Q.C Hj /3 chloroethyl methyl ketone and ethyl /3 chloropropionate... [Pg.17]

Treatment of the epoxy sulfones obtained thus with MgBr2 produces a-bromo ketones or a-bromo al-dehyde. This conversion can be applied to stereoselective preparations of a-bromo methyl ketones from cyclohexanone derivatives. Thus, treatment of 17-P-hydroxy-5-a-androstan-3-one (134) with 1-chloroethyl phenyl sulfone provides an epoxy sulfone (135), which is cleaved by MgBr2 to give a 99 1 mixture of 3-acetyl-3-bromoandrostanes (136 and 137 equation 33), whereas similar treatment of 17-p-hydroxy-5-B-androstan-3-one (138) gives a 4 96 mixture of 3-acetyl-3-bromoandrostanes (139 and 140 equation 34). These facts may reflect the steric course of the initial attack of the a-sulfonyl carbanion on the carbonyl face. [Pg.530]

The extraction of TcO with methyl ethyl ketone, acetone, and pyridine results in a ruthenium decontamination factor of about 10 . Another effective separation method is based on the extraction of technetium as triphenylguanidinium pertechnetate from sulfuric acid by means of chlorex ()S-chloroethyl ether). Pertechnetate can be re-extracted with 3 N NH OH solution . [Pg.126]

EINECS 203-468-6, see Ethylenediamine EINECS 203-470-7, see Allyl alcohol EINECS 203-472-8, see Chloroacetaldehyde EINECS 203-481-7, see Methyl formate EINECS 203-523-4, see 2-Methylpentane EINECS 203-528-1, see 2-Pentanone EINECS 203-544-9, see 1-Nitropropane EINECS 203-545-4, see Vinyl acetate EINECS 203-548-0, see 2,4-Dimethylpentane EINECS 203-550-1, see 4-Methyl-2-pentanone EINECS 203-558-5, see Diisopropylamine EINECS 203-560-6, see Isopropyl ether EINECS 203-561-1, see Isopropyl acetate EINECS 203-564-8, see Acetic anhydride EINECS 203-571-6, see Maleic anhydride EINECS 203-576-3, see m-Xylene EINECS 203-598-3, see Bis(2-chloroisopropyl) ether EINECS 203-604-4, see 1,3,5-Trimethylbenzene EINECS 203-608-6, see 1,3,5-Trichlorobenzene EINECS 203-620-1, see Diisobutyl ketone EINECS 203-621-7, see sec-Hexyl acetate EINECS 203-623-8, see Bromobenzene EINECS 203-624-3, see Methylcyclohexane EINECS 203-625-9, see Toluene EINECS 203-628-5, see Chlorobenzene EINECS 203-630-6, see Cyclohexanol EINECS 203-632-7, see Phenol EINECS 203-686-1, see Propyl acetate EINECS 203-692-4, see Pentane EINECS 203-694-5, see 1-Pentene EINECS 203-695-0, see cis-2-Pentene EINECS 203-699-2, see Butylamine EINECS 203-713-7, see Methyl cellosolve EINECS 203-714-2, see Methylal EINECS 203-716-3, see Diethylamine EINECS 203-721-0, see Ethyl formate EINECS 203-726-8, see Tetrahydrofuran EINECS 203-729-4, see Thiophene EINECS 203-767-1, see 2-Heptanone EINECS 203-772-9, see Methyl cellosolve acetate EINECS 203-777-6, see Hexane EINECS 203-799-6, see 2-Chloroethyl vinyl ether EINECS 203-804-1, see 2-Ethoxyethanol EINECS 203-806-2, see Cyclohexane EINECS 203-807-8, see Cyclohexene EINECS 203-809-9, see Pyridine EINECS 203-815-1, see Morpholine EINECS 203-839-2, see 2-Ethoxyethyl acetate EINECS 203-870-1, see Bis(2-chloroethyl) ether EINECS 203-892-1, see Octane EINECS 203-893-7, see 1-Octene EINECS 203-905-0, see 2-Butoxyethanol EINECS 203-913-4, see Nonane EINECS 203-920-2, see Bis(2-chloroethoxy)methane EINECS 203-967-9, see Dodecane EINECS 204-066-3, see 2-Methylpropene EINECS 204-112-2, see Triphenyl phosphate EINECS 204-211-0, see Bis(2-ethylhexyl) phthalate EINECS 204-258-7, see l,3-Dichloro-5,5-dimethylhydantoin... [Pg.1482]

Similarly, methyl a-chloroethyl ketone, a, -dichloroacetone and a,a,/3-trichlorobutyraldehyde have been converted phytochemically and in good yield to the corresponding primary or secondary halogenated alcohols. Since all these alcohols show optical rotation, it seems established that the phytochemical reduction generally takes an asymmetric course. (See pp. 80, 81, 88 and 92.)... [Pg.81]

B. 2-Iodoethyl benzoate. A mixture of 170 g. of anhydrous sodium iodide and 1.2 1. of methyl ethyl ketone (Note 2) is heated on a steam bath for 1 hour with occasional shaking in a 3-1. round-bottomed flask fitted with a water-cooled reflux condenser. 2-Chloroethyl benzoate (162 g., 0.88 mole) is added to the mixture, and heating is maintained for an additional 22-24 hours with occasional shaking. The mixture is cooled to room temperature and filtered through a 15-cm. Buchner funnel with suction. The inorganic salts on the filter are washed with 200 ml. of methyl ethyl ketone, and the filtrate is concentrated by distillation of about 1 1. of the solvent. The residue is poured into 1 1. of water contained in a separatory funnel, which is shaken, and the lower layer is withdrawn. The latter is washed successively with 200 ml. of 10% sodium bisulfite solution, 200 ml. of 5% sodium bicarbonate solution, and 100 ml. of water. It is dried with anhydrous magnesium sulfate (5-7 g.) and fractionated under reduced pressure. The yield of material boiling at 133 -136°/2.5 mm., 1.5820, is 190 -196 g. (78-81%). [Pg.66]

Ketone, methyl a-chloroethyl, phytochemical reduction of, IV, 81 —, methyl ethyl, phytoohemical reduction of, IV, 83... [Pg.370]

For example, in chlorinating methyl ethyl ketone, CH3—CO—CHj—CHj, methyl-a-chloroethyl ketone is first obtained ... [Pg.146]

Polyitaconic add is converted completdy to the methyl ester with diazomethane (7), while Fisher esterification results in partial esterification of both itaconic acid homo- and copolymers (6). DMI homopolymers and its copolymer with butadiene can be reduced with lithium aluminum hydride to the polymeric alcohols, which on the basis of solubility, may under some conditions be partially cross-linked by intermolecular ester formation (6). Hydrazine converts polydimethyl itaccmate to the polymeric dihydrazide which is water-soluble and exhibits reducing properties. The hydrazide can be treated with aldehyde or ketones to form polymeric hydrazones (45). A cross-linked polymer of bi chloroethyl ita-conate) on treatment with trietlylamine, has been converted by partial quatemization to an anion exchange resin (46). [Pg.230]

Poly(methyl a-chloroacrylate) Poly(2-chloroethyl methacrylate) Poly(2-chlorocyclohexyl methacrylate) Poly(methyl isopropenyl ketone) Polymethacrylonitrile Polyacrylonitrile... [Pg.344]

Pyrolysis of the 3,3-bis-(2-chloroethoxy)-5cx-androstane derivative (368) gave the A -enol ether (369), which afforded the 2a,3a-methano-derivative (370) with the Simmons-Smith reagent. The 2-chloroethyl group was easily removed by n-butyl-lithium to give the cyclopropanol (371), which rearranged on melting to give the 2a-methyl-3-ketone (372). °... [Pg.355]

Alkyl vinyl ketones were synthesized in 1906 by heating (3-chloroethyl ketones with diethylaniline [327]. A large number of syntheses have been developed since that time, but only three or four have general applicability. Most syntheses are carried out at a low pH value to minimize the base-catalyzed condensation of the vinyl ketones. However, a rather elegant synthetic route for alkyl vinyl ketones involves a base catalyzed condensation of formaldehyde with methyl or ethyl ketones, respectively. Thermal dehydration of the p-ketoalcohol intermediates in the presence of weak acid catalysts produced a,p-unsaturated ketones in 50 to 60% yields. Several variations of this procedure have been reported [328]. [Pg.639]

Comelli, F. Francesconi, R. Castellari, C. Excess molar enthalpies for binary mixtures containing ethylbenzene or (2-chloroethyl)benzene + five methyl alkyl ketones J. Chenu Eng. Data 1993,38, 224-226... [Pg.1615]

See other pages where 2-Chloroethyl methyl ketone is mentioned: [Pg.48]    [Pg.17]    [Pg.25]    [Pg.230]    [Pg.1068]    [Pg.332]    [Pg.3024]    [Pg.77]    [Pg.455]    [Pg.883]    [Pg.644]    [Pg.644]    [Pg.314]   
See also in sourсe #XX -- [ Pg.218 ]



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