5,5 -Dichloro-2,2 dihydroxy-diphenyl

Fig. 29. Decrease in concentration of phenolics in activated sludge (Paulus Genth, 1983). (OPP, u-phenyl-phenol PCMC, p-chloro-m-cresol BP, benzyl-phenol CBP, p-chloro- -benzyl-phenol DC, (2,2 -dihydroxy-5,5 dichloro-)diphenyl methane PCMX, / -chloro-m-xylenol PCP, pentachlorophenol.)...

Substance classes Properties — Effectiveness — Applications 5.7.3 2,2 -Dihydroxy-5,5 -dichloro-diphenyl methane — Dichlorophen... 

Is a 20% dihydroxy-dichloro-diphenyl methane. This emulsion type product is cationic in nature and is compatible with alum-inum/wax type water repellent material. This permits the single bath application of a water repellent and a mildew-proofing agent. EPA 6009-8... 

Dihydroxy-dichloro-diphenyl methane ECCO Eastern Color... 

Nickel, dichloro [ethylenebis(dimethyl-phosphine)], 58, 133 Nickel, dichloro[ethj lenebis(diphenyl-phosphine)], 58,133 [Ni (-)-diop Cl2 ], (-)-diop=2,3-0-iso-propylidene-2,3-dihydroxy-l,4-bis(di-phenylphosphino)butane, 58, 133 Nickel, dichloro [ trimethylenebis(diphenyl-phosphine)], 58,133 NITRILES, alkylation of, 55, 91 NITRILES FROM KETONES, 58, 101 NITRILES, a vinyl, 55, 99, 101 p-Nitrobenzenesulfonyl cyanide, 57, 89 p-Nitrobenzyl alcohol, 57, 72 p-NITROBENZYL FLUORIDE, 57, 72 Nitro compounds, 56, 36 Nitronates, 56, 36... 

A general route to phenoxathiins 85 (Z = O, Z = S) utilizes the reaction of diphenyl ethers with sulfur. One route to thianthrene 85 (Z, Z = S) involves reaction of sulfur monochloride with benzene over aluminum chloride. Likewise, tf-methoxyphenol reacts with sulfur dichloride to give, depending on the rate of addition of the reactant, 2,8-dihydroxy-3,7-dimethoxythianthrene 89 or l,6-dichloro-2,7-dihydroxy-3,8-dimethoxythianthrene 90 <1997JCM272>. 

Some chlorinations have been reported with thionyl chloride. 23-Dicyano-5,6-dihydroxypyrazine refluxed with thionyl chloride in pyridine was reported to give 23-dichloro-5,6-dicyanopyrazine (862) and 2-hydroxy-3-nitro-5,6-diphenyl-pyrazine with thionyl chloride gave 2-chloro-3-hydroxy-5,6-diphenylpyrazine (817, 841) but with thionyl chloride and pyridine it gave the betaine of 2-hydroxy-5,6-diphenyl-3-pyridiniopyrazine chloride (5) (863), which was hydrolyzed in acid to 2,3-dihydroxy-5,6-diphenylpyrazine (863). No product could be isolated from 2-methylpyrazine when refluxed with thionyl chloride (864). 1,4-Dimethylpiperazine-... 

Methoxypyrazines (31) have been prepared by diazomethane methylation of 2-hydroxy-3-isobutylpyrazine (60, 311, 367), 2-hydroxy-3-isopropylpyrazine (59, 367), 2-hydroxy-3-propyl(ethyl or hexyl)pyrazine (367), 3-hydroxy-2-isobutyl-5(and 6)methylpyrazine and 2-hydroxy-3-isobutyl-5,6-dimethylpyrazine (368), 2,3-dihydroxypyrazine (832), 2-hydroxy-5-methoxy- and 2,5-dihydroxy-3,6-diphenyl-pyrazine (832), 2-hydroxy-6-methoxy(and benzyloxy)pyrazine (832), 2,6-dihydroxy-3,5-diphenylpyrazine (873), 2,3,5-trifluoro-6-hydroxypyrazine (851), 2-chloro-6-hydroxy-3,5-diphenylpyrazine (873), 2-chloro-6-hydroxy-5-methyl-3-phenylpyrazine (873), 2-chloro-6-hydroxy-3-methyl-5-phenylpyrazine (873), 5,6-dichloro-1 -cyclohexyl-34iydroxy-2-oxo-l, 2-dihydropyrazine (853), 2-chloro-5-hydroxy-3-methoxy-6-methoxycarbonylpyrazine (881), 2-(4 -amino-3, 5 -dibromo-phenylsulfonamido)-3Tiydroxy-6-methoxypyrazine (881), 2-amino-3-hydroxy-... 

Acetamide, N-(p-hydroxybenzyl)-, 41 Acetanilide, 58 Acetic acid, diphenyl-, 50 Acetoacetic acid, 31 Acetoin, 37 Acetone, acetyl-, 39 dichloro-, 39 dihydroxy-, 31 Acetophenone, 52, 54 o-amino-, 55... 

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