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Chloroethyl ester

Nucleophilic participation is important only for esters of alcohols that have pK <13. Specifically, phenyl and trifluoroethyl esters show nucleophilic catalysis, but methyl and 2-chloroethyl esters do not. This result reflects the fete of the tetrahedral intermediate that results fi om nucleophilic participation. For relatively acidic alcohols, the alkoxide group can be eliminated, leading to hydrolysis via nucleophilic catalysis ... [Pg.491]

A derivative of the anti-inflammatory ibuprofen, the corresponding (S)-2-chloroethyl ester, has been obtained vhth 96% ee by CALB-catalyzed ammonolysis of the... [Pg.178]

Renberg [35] used an ion-exchange technique for the determination of chlorophenols and phenoxy acetic acid herbicides in soil. In this method the soil extracts are mixed with Sephadex QAE A-25 anion exchanger and the adsorbed materials are then eluted with a suitable solvent. The chlorinated phenols are converted into their methyl ethers and the chlorinated phenoxy acids into their methyl or 2-chloroethyl esters for gas chromatography. [Pg.166]

Renberg [154] has described a method for the determination of 2.4 dichlorophenoxy acetic acid (2.4D) and 2.4.5 tri chlorophenoxy acetic acid (2.4.5T) in soils in which the herbicide is derivativized to its methyl or 2-chloroethyl ester prior to determination by gas chromatography. Recoveries of the two herbicides at the 8-16mg kgp1 level in soil were between 70-74% (2.4D) and 84-86% (2.4.5T). [Pg.251]

B. S. Kaphalia, R. R. Fritz, G. A. S. Ansari, Purification and Characterization of Rat Liver Microsomal Fatty Acid Ethyl and 2-Chloroethyl Ester Synthase and Their Relationship with Carboxylesterase (p/ 6.1) , Chem. Res. Toxicol. 1997, 10, 211 -218. [Pg.433]

Chloroethanol Ethanol, 2-chloro- (107-07-3), 65,150 2-Chloroethyl dichlorophosphate Phosphorodichloridic acid, 2-chloroethyl ester (1455-05-6), 65, 68... [Pg.271]

Dipephde synthesis in acetonitrile is found to be enhanced 425-fold in the a-chymotrypsin-catalyzed reaction between the 2-chloroethyl ester of N-acetyl-L-phenylalanine and L-phenylalaninamide upon lyophilization of the enzyme in the presence of 50 equivalents of 18-crown-6 (van Unen, 1998). Acceleration is observed in different solvents and for various peptide precursors. [Pg.353]

Phosphonic acid, (phthalimidomethyl)-, diethyl ester, 65, 119 Phosphorazidic acid, diphenyl ester (26386-88-9), 68,1 Phosphoric triamide, hexamethyl- (680-31-9), 66, 51, 94 Phosphorodichloridic acid, 2-chloroethyl ester, 65, 68 Phosphorous acid, triethyl ester, 65, 108.119 Phosphorus oxychloride, 66,173, 176 67,1 68, 41,162 Phosphorus tribromide (7789-60-8), 67, 210 Phthalimide, N-(bromoethyl)-, 65, 119 Phthalimide, N-(hydroxymethyl)-, 65,119 Pig liver esterase, 69, 20... [Pg.157]

Esters for the selective and sensitive detection of carboxylic acids contain atoms or functional groups for which the detector is specific. As with substances of other types, preferably derivatives containing halogens are used for electron-capture detection. Karmen [151] suggested 2-chloroethyl esters for specific detection with the aid of the alkali FID. They are much less volatile than methyl or ethyl esters, and are therefore interesting for the analysis of short-chain fatty acids. GC separation was carried out on EGA polyester or SE-30. [Pg.116]

SYNS CELLUFLEX FYROL CEF NCI-C60128 NIAX FLAME RETARDANT 3 CF TRICHLORETHYL PHOSPHATE TRI-P-CHLOROETHYL PHOSPHATE TRI(2-CHLOROETHYL)PHOSPHATE TRIS(2-CHLOROETHYL)ESTER PHOSPHORIC ACID TRIS(p-CHLOROETHYL) PHOSPHATE TRIS(2-CHLOROETH-YL) PHOSPHATE... [Pg.328]

SYNS 2-CHLORETHYLESTER KYSELINY CHLORMRAVENCI CHLOROFORNHC ACID 2-CHLOROETHYL ESTER FORMIC ACID, CHLORO-, 2-CHLOROETHYL ESTER TL 207... [Pg.328]

SOP500 CAS 140-57-8 HR 3 SULFUROUS ACID, 2-(p-tert-BUTYL-PHENOXY)-1-METHYLETHYL-2-CHLOROETHYL ESTER... [Pg.1294]

ISOCYANIC ACID, BUTYL ESTER see BRQ500 ISOCYANIC ACID-2-CHLOROETHYL ESTER see IKHOOO... [Pg.1735]

Cyclization of the 2-chloroethyl ester (669) with base gave (670) (64JOC3707). [Pg.661]

ETHANOL, 2-CHLORO-, ESTER WITH 2-(P-TERT-BUTYLPHENOXY)-1-METH YLETHYL SULFITE ETHANOL, 2-CHLORO-, 2- P-T-BUTYLPHENOXY)-1-METHYLETHYL SULFITE ETHANOL. 2-CHLORO-. 2-(P-T-BUTHYLPHENOXY)-1-METHYLETHYL SULFITE SULFUROUS ACID, 2-CHLOROETHYL 2-t4-(1,1-DIMETHYLETHYL)PHENOXY]-1-METHYLETHYL ESTER 2-CHLOROETHYL SULPHITE OF 1-(P-T-BUTYLPHENOXY)-2-PROPANOL 2-(P-BUTYLPHENOXY)-1-METHYLETHYL 2-CHLOROETHYL SULFITE 2-(P-BUTYLPHENOXY)ISOPROPYL 2-CHLOROETHYL SULFITE 2-(P-T-8UTYLPHENOXY)-1-METHYLETHYL 2 -CHLOROETHYL SULPHITE 2-(P-T-BUTYLPHEN0XY)-1-METHYLETHYL 2-CHLOROETHYL ESTER OF SULPHUROUS ACID 2-(P-T-BUTYLPHENOXY)-1-METHYLETHYL SULPHITE OF 2-CHLOROETHANOL 2-(P-T-8UTYLPHENOXY)ISOPROPYL 2 -CHLOROETHYL SULPHITE 2-(P-TERT-BUTYLPHENOXY)-1-METHYLETHYL 2-CHLOROETHYL ESTER SULFUROUS ACID 2-(P-TERT-BUTYLPHENOXY)ISOPROPYL 2-CHLOROETHYL SULFITE 2-CHLOROETHYL 1-METHYL-2- P-T-BUTYLPHENOXY)ETHYL SULFATE 2-(4-T-BUTYLPHENOXY)ISOPROPYL-2-CHLOROETHYL SULFITE... [Pg.3]

See other pages where Chloroethyl ester is mentioned: [Pg.2392]    [Pg.6]    [Pg.390]    [Pg.158]    [Pg.257]    [Pg.265]    [Pg.294]    [Pg.233]    [Pg.235]    [Pg.2392]    [Pg.63]    [Pg.144]    [Pg.273]    [Pg.790]    [Pg.1294]    [Pg.1577]    [Pg.1926]    [Pg.428]    [Pg.383]    [Pg.280]    [Pg.158]   
See also in sourсe #XX -- [ Pg.235 ]



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Phosphorodichloridic acid, 2-chloroethyl ester

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