Chlorodiphenyl ether

Synonyms AI3-01021 AI3-32895 4-CPPE p-CPPE 4-Chlorodiphenyl ether p-Chlorodiphenyl ether l-Chloro-4-phenoxybenzene 4-Chlorodiphenyl oxide p-Chlorodiphenyl oxide 1-Chloro-p-phenoxybenzene 4-Chlorophenyl ether p-Chlorophenyl ether p-Chlorophenyl phenyl ether EINECS 230-281-7 Monochlorodiphenyl oxide NSC 61839 4-Phenoxychlorobenzene p-Phenoxychlorobenzene. 

Chlorobutane [109-69-3] 4-Chloro-o-cresol [1570-64-5] Chlorocyclohexane [542-18-7] 4-Chlorodiphenyl ether... 

Chlorodiphenyl ether, see 4-Chlorophenyl phenyl ether p-Chlorodiphenyl ether, see 4-Chlorophenyl phenyl ether... 

Tellurium tetrachloride acted as chlorinating agent in its reactions with 4-fluorodiphenyl ether and 4-chlorodiphenyl ether. The expected 2-fluoro- and 2-chlorophenoxatellurin... 

Synonym 4-chlorophenyl phenyl ether, l-chloro-4-phenoxybenzene, p-chlorophenyl phenyl etlier, 4-chlorodiphenyl ether, monochlorodiphenyl oxide... 

Chemical Name 4-chlorophenyl phenyl ether, 4-chlorodiphenyl ether... 

Phenyl ether 4-chlorodiphenyl ether 2-carb-oxylicacid. CjgHgOgCl. MW, 248-5. M.p. 115° Weil, Traun, Marcel, Ber., 1922, 55,2664. LeuUer, Pinet, BiM. soc. chim., 1921, 41. 1363. 

The other fragmentation pathways are typical for diaryl sulfoxides1-4-6,1. A corresponding ortho effect was found in chlorodiphenyl ethers and sulfides but not in sulfones12 (12) were the sulfinate ester rearrangements1-4,6,11 and the consequent formation of the m/z 125 and m/z 159 ions suppress the other possible fragmentations of the molecular ions (equation 4). It is also noteworthy that the ratio [m/z 125] [m/z 159] increases with increasing distance between the chlorine and the sulfur (equation 4). 

Technical chlorophenol formulations are the major sources of PCDEs in the environment [4,40,45,46]. Hydroxy chlorodiphenyl ethers (OH-PCDE), also called polychlorinated phenoxyphenols (PCPP), are the main impurities of chlorophenols [39,47,48]. 2-OH-PCDEs are called predioxins, since they are phenolic precursors to polychlorinated dibenzo-p-dioxins (PCDD) [47]. The levels of 2-hydroxy-nonaCDEs have varied between 0.6 mg kg-1 and 1100 mg kg-1 in commercial pentachlorophenol preparations (sodium salts) [47]. 3,4,5,6-tetrachloro-2-(2,3,4,5,6-pentachlorophenoxy)phenol) is the main impurity of commercial pentachlorophenols [48]. 

Polychlorinated diphenyl ethers (PCDEs) 10.1.4.1 2-Chlorodiphenyl ether (PCDE-1)... 

Several imrelated groups of chlorinated aromatic compounds can be considered together based on their similar composition and toxicity polychlorinated biphenyl congeners (PCBs), dioxins and furans, chlor-onaphthalenes, and chlorodiphenyl ethers (see Figure 13.1). Most of these compoimds are included in the Stockholm Convention Agreements of 2001 and 2008, and their production is reduced or eliminated in most parts of the world. However, the compoimds are highly persistent in the environment and exhibit other properties associated with POPs. Because chlorinated aromatic compoimds are nonpolar and stable at elevated temperature, gas chromatography is the preferred approach for analysis. Numerous reviews have been published that detail GC methods of analysis for PCBs, dioxins, and other chlorinated aromatic compounds in environmental samples [6,9,54]. 

Chlorobenzene Producers Association (CPA), 270 p-Chlorobenzotrichloride, 39 Chlorobenzotrifluorides, 39 Chlorobromomethane, 39 Chlorodifluorobromomethane, 39 Chlorodifluoroethane, 39 Chlorodifluoromethane, 39 Chlorodiphenyl, 39 Chloroethanol, 39 2-Chloroethyl vinyl ether, 39 Chlorofluorocarbons, 39 Chloroform, 40 Chloromethyl anilines, 40 Chloromethyl ether, 40 Chloromethyl methyl ether, 40 2-(4-Chloro-2-methylphenoxy) propionic acid, 40 Chloromethyl phenyl isocyanate, 40... 

Synonyms Chlorinated phenyl ethers mono-chlorodiphenyl oxide, dichlorodiphenyl oxide, etc., through hexachlorodiphenyl oxide... 

Polychlorinated diphenyl ethers (PCDE), also called bis(chlorophenyl) ethers and chlorodiphenyl oxides, are neutral aromatic compounds which resemble structurally polychlorinated biphenyls (PCB), except that one oxygen atom connects the phenyl rings. The empirical formula of the PCDEs is C12H10 nClnO, where n = 1-10. The structural formula of the PCDEs is given in Fig. 1. 

SYNONYMS benzene, l,l -oxybis, hexachloro, chlorinated diphenyl ether, hexaclorodi-phenyl ether, hexachlorodiphenyl oxide, hexachlorophenyl ether, trichlorodiphenyl ether, tri-chlorodiphenyl oxide. 

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