2.4- dichlorophenoxy-propionic acid

Dichlorophenols. Among all the dichlorophenols, C H Cl O, it is 2,4-dichlorophenol that is produced in greatest quantity. 2,4-Dichlorophenol is used in manufacturing 2,4-dichlorophenoxyacetic acid [94-75-7] (2,4-D) and 2-(2,4-dichlorophenoxy)propionic acid [720-36-5] (2,4-DP). Industrially, 2,4-dichlorophenol can be obtained by chlorinating phenol, -chlorophenol, o-chlorophenol, or a mixture of these compounds in cast-iron reactors. The chlorinating agent may be chlorine or sulfuryl chloride in combination with a Lewis acid. For example ... 

Dicliloroethane, 52 Dichloroethyl ether, 52 Dichloromethane, 52 Dichloromethyl ether, 52 Dichloromethylphenylsilane, 52 Dichloromonofluoromethane, 52 2-(2,4-Dichlorophenoxy) propionic acid, 52 Dichlorophenyl isocyanates, 53... 

Zipper C, M Bunk, AJB Zehnder, H-PE Kohler (1998) Enantioselective uptake and degradation of the chiral herbicide dichloroprop [(R5)-2-(2,4-dichlorophenoxy)propionic acid] by Sphingomonas herbicidov-orans MH. J Bacteriol 180 3368-3374. 

The enantiomerization of phenoxyalkanoic acids containing a chiral side chain has been studied in soil using (Buser and Muller 1997). It was shown that there was an equilibrium between the R- and S- enantiomers of 2-(4-chloro-2-methylphenoxy)propionic acid (MCPP) and 2-(2,4-dichlorophenoxy)propionic acid (DCPP) with an equilibrium constant favoring the herbicidally active f -enantiomer. The exchange reactions proceeded with both retention and inversion of configuration at the chiral sites. 

Dichlorophenox3q)henol. see TCDD 4 (2,4 Dichlorophenoxy)phenol. see Diclofop-methvl (2,4 Dichlorophenoxy)propionic acid, see 2,4-D 2((((3,5-Dichlorophenyl)carbamoyl)oxy)2-methyl)-3-butenoic acid, see Vinclozolin Dichlorophenyl cyanide, see 1,2,3,4-Tetrachlorobenzene... 

The polystyrene latexes produced from concentrated emulsions have been used as carriers for the controlled release of herbicides [160], The release of 2-(2,4-dichlorophenoxy) propionic acid (2,4-DP) was found to depend on the water concentration, increasing with increasing dilution of the latex. High conversion to polymer was required to prevent a large initial release of herbicide on dilution however, a significant initial burst was still observed at almost complete conversion. This was reportedly due to dissolution of 2,4-DP at, or near, the surface of the latex particles. 

D 2,4,5-T Silvex 2.4- DB MCPA Dichlorprop Dicamba (2,4-dichlorophenoxy) acetic acid (2,4,5-trichlorophenoxy) acetic acid (2,4,5-trichlorophenoxy)propionic acid 4-(2,4-dichlorophenoxy) butyric acid (4-chloro-2-methylphenoxy)acetic acid 2-(2,4-dichlorophenoxy)propionic acid 3,6-dichloro-2-methoxybenzoic acid... 

Chemical Name ( )-2-(2,4-dichlorophenoxy) propanoic acid ( )-2-(2,4-dichlorophenoxy) propionic acid Uses herbicide and growth regulator to control annual broadleaf and grass weeds also to control aquatic weeds and chemical maintenance of embankments and roadside verges. 

Dichlorophenoxy) propionic acid 0.05 M lithium acetate containing heptakis-(2,6-di-0-methyl)-P-cyclodextrin UV 200 nm [21]... 

Propi-Rhap [Uniroyal]. TM for the 2-eth-ylhexyl ester of 2-(2,4-dichlorophenoxy)propionic acid. 

The three most important members of this group of compounds are 2-(2,4-dichlorophenoxy)propionic acid (dichlorprop, 2,4-DP, 8), 2-(4-chIoro-2-methyl-phenoxy)propionic acid (MCPP, CMPP, mecoprop, 9) and 2-(2,4,5-trichIoro-phenoxy)propionic acid (2,4,5-TP, fenoprop, silvex, 10). 

D used in the United States does not result in any level of tetrachlorodioxin contamination. Other members of the phe-noxys in wide use are 2-(2,4-dichlorophenoxy)propionic acid (Dichlorprop or 2,4-DP), 4-(4-chloro-2-methylphenoxy) butanoic acid (MCPB), and 2-(4-chloro-2-methylphenoxy) propanoic acid (Mecoprop or MCPP) (18B18). None of these compounds [2,4-DB, 2,4-DP, MCPB, MCPA, MCPP, 2-(2,4,5-trichlorophenoxy)propionic acid] has been found in tobacco or tobacco smoke. 

Dichlorophenoxy) propionic acid a-(2,4-Dichlorophenoxy) propionic acid. See Dichlorprop... 

CE has been used for the analysis of chiral pollutants, e.g., pesticides, polynuclear aromatic hydrocarbons, amines, carbonyl compounds, surfactants, dyes, and other toxic compounds. Moreover, CE has also been utilized to separate the structural isomers of various toxic pollutants such as phenols, polyaromatic hydrocarbons, and so on. Sarac, Chankvetadze, and Blaschke " resolved the enantiomers of 2-hydrazino-2-methyl-3-(3,4-dihydroxyphenyl)propanoic acid using CD as the BGE additive. The CDs used were native, neutral, and ionic in nature with phosphate buffer as BGE. Welseloh, Wolf, and Konig investigated the CE method for the separation of biphenyls, using a phosphate buffer as BGE with CD as the chiral additive. Miura et al., used CE for the chiral resolution of seven phenoxy acid herbicides using methylated CDs as the BGE additives. Furthermore, the same group resolved 2-(4-chlorophenoxy) propionic acid (MCPP), 2-(2,4-dichlorophenoxy) propionic acid (DCPP), (2,4-dichlorophenoxy) acetic acid (2,4-D), 2-(4-chlorophenoxy) propionic acid (2,4-CPPA), [(2,4,5-... 

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