Phenyl oxide

PPO poly(phenyl oxide) SCF self-consistent field ... 

H-l,2,3-Benzotriazole, 2-phenyl-oxidation, 5, 721 as photostabilizers, 5, 731 synthesis, 5, 722 Benzotriazoles acylation, 5, 54 antifogging agents... 

Imidazole, 1,2-diamino-4-phenyl-oxidation, S, 440, 454 Imidazole, 4,5-diaryl-synthesis, S, 481 Imidazole, diazoreactions, S, 96... 

Imidazole, 2-ethyl-1 -(o-nitrophenyl)-cyclization, S, 431 Imidazole, 4-ethyl-2-phenyl-oxidation, S, 405 Imidazole, ethynyl-Michael addition, S, 437 Imidazole, 4-ethynyl-2-phenyl-synthesis, S, 494 Imidazole, 1-formyl-reactions, S, 452 Imidazole, 2-formyl-mass spectra, S, 360 Imidazole, 4-formyl-synthesis, S, 475-476 Imidazole, 2-formyl-1,5-dimethyl-mass spectra, S, 360 3-oxide... 

Imidazole-5-thione, 4,4-diphenyl-tautomerism, 5, 368 3 H-Imidazole-2-thione, 1,3-dimethyl-structure, 5, 367 Imidazole-2-thiones acidity, 5, 367 betaines, 5, 372 synthesis, 5, 481 tautomerism, 5, 367 3H-Imidazole-2-thiones synthesis, 5, 473, 6, 992 Imidazolides deacylation, 5, 453 mass spectra, 5, 360 phosphoric acid reactions, 5, 454 reactions, 5, 451-453 Imidazolidine, l-alkyl-3-phenyl-N-oxidation, 5, 427 Imidazolidine, 1,3-benzyl-2-phenyl-oxidation, S, 427... 

Isoxazole-4-carbaldehyde, 6, 84 Isoxazole-4-carbaldehyde, 5-methyl-3-phenyl-oxidation, 6, 27, 53 Isoxazole-5-carbaldehyde synthesis, 6, 84 Isoxazole-3-carboxylic acid esters... 

Lumazine, l,3-dimethyl-6-phenyl-oxidation, 3, 305 Lumazine, 6,7-dimethyl-8-ribityl-in riboflavin biosynthesis, 1, 93 Lumazine, 6,7-dimethyl-8-D-ribityl-biosynthesis, 3, 320 structure, 3, 277 Lumazine, 6,7-dimethyl-2-thio-reactions... 

Pteridine, 6-oxo-5,6,7,8-tetrahydro-electrochemistry, 3, 285 Pteridine, 7-oxo-5,6,7,8-tetrahydro-electrochemistry, 3, 285 Pteridine, 2-phenyl-structure, 3, 266 Pteridine, 4-phenyl-structure, 3, 266 Pteridine, 7-phenyl-oxidation, 3, 305 Pteridine, 2,4,6,7-tetraamino-synthesis, 3, 291 Pteridine, 2,4,6,7-tetrabromo-reactions, 3, 291 Pteridine, 2,4,6,7-tetrachloro-hydrolysis, 3, 291 properties, 3, 267 Pteridine, 1,2,3,4-tetrahydro-structure, 3, 280 Pteridine, 5,6,7,8-tetrahydro-reduction, 3, 280 synthesis, 3, 305 Pteridine, 2,4,6,7-tetramethyl-NMR, 3, 266... 

Pyran-2-one, 4-methoxy-6-( 1 -propenyl)-synthesis, 3, 690 Pyran-2-one, 6-methyl-bromination, 3, 690 Pyran-2-one, 6-(2-methylpropenyl)-synthesis, 3, 796 Pyran-2-one, 3-methylthio-synthesis, 3, 796 Pyran-2-one, 3-nitro-6-phenyl-oxidation, 3, 681 Pyran-2-one, 6-phenyl-chlorination, 3, 679... 

Thiophene, 3-pentadeuterophenyl-chemical shifts, 4, 730 Thiophene, 2-phenyl-oxidation, 4, 800 phototranspositions, 4, 743 rearrangement, 4, 42 reduction, 4, 775 synthesis, 4, 865, 914 UV spectrum, 4, 735 Thiophene, 3-phenyl-photochemical rearrangements, 4, 735 phototranspositions, 4, 743 lsmeier formylation, 4, 759 Thiophene, 2-pivaloyl-Birch reduction, 4, 775 Thiophene, polybromo-reactivity, 4, 829 Thiophene, polylithio-synthesis, 4, 831 Thiophene, (propargylthio)-rearrangement, 4, 746 Thiophene, 2-(3-pyridinyl)-synthesis, 4, 781 Thiophene, 2-(5-pyrimidinyl)-synthesis, 4, 781 Thiophene, 3-pyrrolidinyl-cycloaddition reactions, 4, 68 with dimethyl acetylenedicarboxylate, 4, 788-789... 

Step B 3-Carbethoxy-4-Hydroxy-8-Trifluoromethylquinoline - A mixture of 113 grams of crude ortho-trifluoromethylanilinomethylene ethyl malonate from Step A, and 115 cc of phenyl oxide was heated rapidly under an inert atmosphere. At about 195°C, the ethanol formed began to distill off. At the end of about 30 minutes, the interior temperature reached 250°C and the reaction mixture was heated to reflux. Reflux was maintained for 1 hour and the mixture was then cooled, 25 cc of acetone were added and the mixture was allowed to crystallize. The mixture was filtered and the crystals thus formed were washed and dried to obtain 71.5 grams of 3-carbethoxy-4-hydroxy-8-trifluoromethylquino-line with a melting point of 210° to 214°C, which was used as is for the following stage. 

Dimethyl-phenyl- -oxid 537, 698 Dimethyl-(2,2,2-trifluor-athyl)- 239 Diphenyl- 538... 

Valuable metabolic insights have been gained from in-depth studies of phenytoin (diphenylhydantoin, 10.21), whose main biotransformation pathway is by cytochrome P450 catalyzed phenyl oxidation. Incubations with rat liver 9000 g supernatant produced the para-phenol (4 -hydroxyphenytoin) as the major metabolite, and the dihydrodiol in smaller proportions. Minute amounts of other metabolites were also detected, e.g., the meto-phenol and the 3-O-mclhylcalcchol. Studies in rats confirmed the urinary excretion, in decreasing order of importance, of the para-phenol, the dihydrodiol, and the 3-O-mclhylcalcchol metabolites [78][79],... 

While comparatively few dihydrodiols have been observed in the metabolism of phenyl-containing drugs, the examples above are far from unique. Thus, oxazepam incubated in rat, mouse, and human microsomes did yield a dihydrodiol besides the para-phenol [82], A more-recent example is that of rofecoxib (10.22), a potent and selective cyclooxygenase-2 (COX-2) inhibitor. In rats and dogs, phenyl oxidation produced 4 -hydroxyrofecoxib and rof-ecoxib-3, 4 -dihydrodiol as urinary metabolites of intermediate quantitative importance [83]. 

Chemoselective anodic methoxylation at a distinct carbon atom in the a-position to an amino group in a polypeptide was achieved by prior introduction of a silyl group as an electroauxiliary at this carbon atom [156]. Amide oxidation in A-acetylpyrrolidines substituted with electron-rich phenyl rings led to either methoxylation a to the nitrogen atom or in the benzylic position. Mechanistic studies indicate that both the amide and the phenyl oxidation compete, but intramolecular electron transfer leads to... 

Synonyms AI3-00749 Biphenyl ether Biphenyl oxide BRN 1364620 CCRIS 5912 Diphenyl ether Diphenyl oxide EINECS 202-981-2 FEMA No. 3667 Geranium crystals NSC 19311 NSC 174083 1,1-Oxybisbenzene Phenoxybenzene Phenyl oxide UN 3077. 

Phenyl-2-methylpropane, see sec-Butylbenzene 4-Phenylnitrobenzene, see 4-Nitrobiphenyl p-Phenylnitrobenzene, see 4-Nitrobiphenyl Phenyl oxide, see Phenyl ether... 

The following were introduced into 383.52 ml of phenyl oxide 225.60 grams of 2-nitro-5-chloro-trifluoromethylbenzene, described in the German Patent... 

No. DRP 637,318, 128.10 grams of 5,5-dimethylhydantoin described in Beil., Vol. 24, 289 and 198.53 grams of cuprous oxide. The mixture was heated to 200°C for 24 hours, then cooled to 20°C and filtered. The residue was rinsed with phenyl oxide, then extracted with ethyl acetate. The ethyl acetate phase was concentrated to dryness under reduced pressure at 60°C and the residue was taken up in ammoniacal dichloroethane. The crystals obtained were dried at 60°C to obtain 66.55 grams of crude product which, after purification from aqueous ethanol yielded 62.55 grams of purified desired product. 

The following were introduced into 288 ml of phenyl oxide 96.10 grams of 5,5-dimethyl-hydantoin, 170.86 grams of 2-nitro-5-chloro trifluoromethylbenzene and 89.40 grams of cupric oxide. The mixture was heated to 190°C for about 23 hours, then cooled to 20°C and filtered. The residue was characterized in the phenyl oxide filtrate by thin layer chromatography. The analytical results obtained for these 5 examples were identical to those obtained and indicated in French Patent No. 2,329,276. 

Color. All aromatic azopolymers are colored owing to the strongly chromophoric azogroup. Even the azoblock copolymer derived from a phenyl oxide-isophthalamide backbone (discussed earlier) which has only one azogroup per repeat unit of a molecular weight of 3500 is bright yellow. Naturally, the shade of color of individual polymers depends on the structure of the repeat unit as expected, fully conjugated polymers... 

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