Pentachlorophenyl ether

Vinyl Pentachlorophenyl Ether, (9). Method A 2-Pentachlo-phenoxyethyl bromide (0.4 g, 1.1 mmol) was dissolved In tetrahydrofuran (3 ml) and l,5-dlazablcyclo-5,4,0-undec-5-ene (DBU) (0.16 g, 1.1 mmol) was added dropwlse to the solution. The mixture was refluxed for 30 minutes and water (100 ml) was added, and the solution was extracted with chloroform. The chloroform extract was dried with anhydrous MgS04 and the chloroform removed In vacuo to yield 0.2 g (64.5%) of (9). 

Attempts to make acrylic latlces containing o-benzyl-p-chlorophenyl acrylate, 17, using the same techniques employed for the systems In Table 6, failed. It was found that no 17 was Incorporated Into the polymer of these latlces. Similar attempts to make terpolymer latlces with vinyl pentachlorophenyl ether, 25 or vinyl 3,4 5-trlbromosallcylanlllde ether, 28 (with MMA and nBA) failed. These fungicidal vinyl ethers were not.Incorporated Into the resulting latex polymers. However, vinyl o-benzyl-p-chlorophenyl ether, 17, was successfully terpolymerized In latex form (see latex 12, Table 6). Formulations for latlces 1-3 and 5-14 are given In Table 7. 

Pentachloroanisole Methyl pentachlorophenyl ether CjHjCIsO 1826-21-4 280.363 nd MeOH 108.6 ... 

Methyl pentachlorophenyl ether 9614 Methyl pentafluorophenyl ether... 

Perfluoroalkylcopper and perfluoroarylcopper compounds are noticeably more thermally stable than the corresponding alkyl and aryl compounds. Solutions of perfluoroalkylcopper compounds in DMSO or DMF are stable up to at least 120°C 200), whereas ether suspensions of alkylcopper compounds decompose at 0°C or below. Similarly, pure pentafluorophenylcopper tetramer decomposes at 210°C-220°C, and a sample has been kept in a Dry Ice chest for 5 years 32). However pure phenylcopper can be kept for no more than a few days, even under nitrogen 73). Solutions of pentafluorophenylcopper reagents containing metal halides in THF have been refluxed for 5 days or more without decomposition (97, 144). Other stable perhaloarylcopper reagents are those in which the aryl moiety is perfluoro(p-phenoxyphenyl) (96), pentachlorophenyl, and 2,3,5,6-tetrachloropyridyl 144), none of which... 

SYNS ETHER, PENTACHLOROPHENYL PHENYL ETHER PENTACHLORO... 

The higher nucleophilicity of phenoxide and perchlorobenzoate counterions causes immediate nucleophilic substitution on the corresponding phosphonium ion phenoxy group, giving triphenylphosphine oxide and either perchlorodiphenyl ether or pentachlorophenyl pentachlorobenzoate respectively (p. 324) (92). Similarly, the reaction of triphenylphosphine dibromide with excess of silver pentachlorobenzoate yields pentachlorobenzoic anhydride in quantitative yield (Veciana, 1977). 

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