5,7-Diphenyl- -phenyl

Electro-optical modulators are other examples whose efficiency is enhanced in the presence of ion-radicals. These devices are based on the sandwich-type electrode structures containing organic layers as the electron/hole-injecting layers at the interface between the electrode and the emitter layer. The presence of ion-radicals lowers the barrier height for the electron or hole injection. Anion-radicals (e.g., anion-radicals from 4,7-diphenyl-l,10-phenanthroline—Kido and Matsumoto 1998 from tetra (arylethynyl) cyclooctatetraenes—Lu et al. 2000 from bis (1-octylamino) perylene-3,4 9,10-bis (dicarboximide)s— Ahrens et al. 2006) or cation-radicals (e.g., cation-radicals from a-sexithienyl—Kurata et al. 1998 l,l-diphenyl-2-[phenyl-4-A/,A- /i(4 -methylphenyl)] ethylene— Umeda et al. 1990, 2000), all of them are electron or hole carriers. 

Diphenyl-[2-(trans-2-phenyl-ethenyl)-phenyl]-phosphanoxid297 4,35 g (12 mmol) Diphenyl-(2-phenyl-ethin-yl)-phosphan werdcn in 20 ml wasserhaltigem Ethanol 30 Min. am RiickflufS erhitzt. Nach Abdampfen des Lo-sungsmittels wird aus Benzol/Cyclohexan (1 2) umkristallisiert Ausbeute 3,0 g (66%), Schmp. 169—170°. 

HsCbIjP-CHj-PICbHsIj K, Xylol hsc6-cho -CH=CH-C6Hs Diphenyl-(2-phenyl-vinyl)-.. . 57 165-167 406... 

Diphenyl-(1-phenyl-propyl)- E2, 147 Diphenyl-(2-phcnyl-vinyl)- E2, 66 Diphenyl-[2-(/ranv-2-phcnyl-vinyl)-phenyl)-aus Diphenyl-(2-phenyl-ethinyl)-phosphan und wasserhaltigem Ethanol E2, 48 Diphenyl-(phthalimino-methyl)- E2, 22 Diphenyl-piperidinomethyl- XII/1, 155 Diphenyl-1-propinyl- E2, 76 Diphenyl-tosyloxymethyl- El, 513 Diphenyl-(3-trialkylsik>xy-a]]yD- E2, 27 Diphenyl-trichlormethyl- XII/1, 151 F.2, 23 (Z)-Diphenyl-(3-triethylsilyloxy-allyl)- E2, 27 (Z)-Diphenyl-(3-triethylsilyloxy-2-butenyl)-aus Diphenyl-methoxy-phosphan und Chlor-triethyl-silan/3-Oxo-l-butcn E2, 27 Diphenyl-trifluoracctyl- E2, 8, 19, 42 Diphenyl-(2,2,2-lrifluor-ethyl)- E2, 16 Diphenyl-(l,l,3-trimethyl-2-butenyl)- E2, 71 Diphenyl-(trimethylsilyl-methyl)- E2, 22, 66 Diphcnyl-(l-trimethylsilyloxy-alkyl)- E2, 26 Diphenyl-triphenylmethyl-XlI/1,151 Diphenyl-(triphenylstannyl-methyl)-... 

Diphenyl-(2-methyl-propyl)- XII/1, 171 Diphenyl-pentafluorphenyl- E2, 90 Diphenyl-phenylcthinyl- E2, 91 Diphenyl-(2-phenyl-l-propenyl)- E2, 91 Diphenyl-(2-phenyl-vinyl)- E2, 82, 91 Diphenyl-(frarcs-1-propenyl)- E2, 91 Diphenyl-1-propinyl- E2, 91 Diphenyl-2-pyridyl- XII/1, 170 Diphenyl-(l-triphenylsfannyl-cthyl)- E2, 90 Diphenyl-vinyl E2, 90 Di-l-propinyl-phenyl- E2, 83 Dipropyloxy- XII/2 84ff., E2, 730, 786 Ethoxy-ethyl- E2, 449... 

The reaction between l,3-diphenyl-2-(phenylmethylene)-l,3-propanedione (85a) and ylides (86) has been shown to result in the formation of Michael adducts (87). In contrast, under identical conditions 1,3-diphenyl-2-(phenyl-imino)-l,3-propanedione (85b) undergoes Wittig olefination yielding alkenes (88). ... 

N,1S7-diphenyl-/)-phenyl-enedia 18 16 2 [74-31-7] white sohd 146 from hydro quinone and 10.38... 

B.Bg (0.15 mol) of 4-phenylbenzophenoneare dissolved in 200 ml of ethanol and 3 g (0.075 mol) of sodium borohydride are added. After heating for 15 hours under reflux, and allowing to cool, the reaction mixture is hydrolyzed with water containing a little hydrochloric acid. The solid thereby produced is purified by recrystallization from ethanol, 36 g (B9% of theory) of (biphenyl-4-yl)-phenyl-carbinol [alternatively named as diphenyl-phenyl carblnol or a-(biphenyl-4-yl)benzylalcohol] of melting point 72°-73°C are obtained. 

The most direct method for the preparation of a-peroxylactones is via singlet oxygenation of ketenes (Eq. 25). A few a-peroxylactones have been prepared in this way, including dimethyl, diphenyl, phenyl, and methyl phenyl derivatives. 

In Cyclokexan unter Stickstoff (HanauTQ81 8 Stdn.) bildot sieli 2-[6-Hydroxy-o-pftenyl-phenyt)-l- 4-methoxy-3,5-diphenyl-phenyl)-benzol (F 180-181°) in 41%iger Ausbeute. 

Transarylation has been observed in the reaction of 2,6-diphenylphenol 8 mols.) with 2,2-bis(4-hydroxyphenyl)propane ( bis-phenol A ) in dry chloroform by treatment with methanesulphonic acid (5 mols.) followed by reaction for 4 hours at ambient temperature to afford 2,2-bis(4-hydroxy-3,5-diphenyl-phenyl)propane in 87% yield (ref.70)... 

Biphenyl ( )bl- fe-n l, - fe- [ISV] (1923) n. (diphenyl, phenyl benzene) (C6H5)2. A stable, high-boiling (256°C) liquid long used as a heat-transfer medium. 

C4 3H3 i,BrN02, 2,6-Diphenyl-4- (4-bromophenyl )-N-(p-oxy-m,m -diphenyl )-phenyl-pyridinium betaine monoethanol solvate, 34B, 143 CinjHijyClijNi 1O2U, Bis(protonated 2,6-diacetylpyridine-bis(phenylhyd-razone)) uranyl tetrachloride acetonitrile, 41B, 300 C5 2H4 bNbOi,, 1 -Benzyl-3-carbamoylpyr idine cyclotetracondensate, 43B, 317... 

Terpenes Diphenyl-phenyl-hydrazyl Yellow spots on purple background... 

CUCI2 on phenyl magnesium halides also provide reasonable quantities of diphenyl. Uses include its action as a fungistat during shipment of apples and oranges, and as a heat transfer agent (dowtherms) mixed with diphenyl ether and terphenyls. 

TTie true ketones, in which the >CO group is in the side chain, the most common examples being acetophenone or methyl phenyl ketone, C HjCOCH, and benzophenone or diphenyl ketone, C HjCOC(Hj. These ketones are usually prepared by a modification of the Friedel-Crafts reaction, an aromatic hydrocarbon being treated with an acyl chloride (either aliphatic or aromatic) in the presence of aluminium chloride. Thus benzene reacts with acetyl chloride... 

Phenyl isocyanate is a colourless liquid, b.p. 164° or 55°/13 mm. its vapour is lacluymatory. The liquid reacts readily with water, yielding diphenyl urea, m.p. 241°, and hence must be protected from atmospheric moisture ... 

About 2-3 per cent, of diphenyl is formed in the initial preparation of phenyl-sodium and, in consequence, careful fractionation is required in the case of alkylbenzenes with a b.p. near that of diphenyl. 

Diphenyl-4-aminothiazolium chloride reacts with aniline at room temperature to give 2-phenyl-4-anilinothiazole (52). 

Researchers at Du Pont used hydroquinone asymmetrically substituted with chloro, methyl, or phenyl substituents and swivel or nonlinear bent substituted phenyl molecules such as 3,4- or 4,4 -disubstituted diphenyl ether, sulfide, or ketone monomers. Eor example,... 

Sulphenone /5 (9-J(9-, /)-chlorophenyl phenyl sulfone (142), is a white soHd (mp 98°C). The technical material consists of ca 80% of this compound, with small amounts of 0- and y -isomers, bis(/)-chlorophenyl) sulfone, and diphenyl sulfone. Sulphenone is effective against all stages of mites. Its oral LD q to the rat is >2000 mg. 

Many newer poly(phenylene oxide)s have been reported ia the early 1990s. Eor example, a number of poly(2,6-diphenyl-l,4-phenylene oxide)s were prepared with substituents ia the 4-positions of the pendent phenyl groups. Of particular iaterest is the 4-fluoro substitueat, which imparts a lower melting poiat, enhanced solubiUty, and a lesser tendency to crystallize than has been found for the parent material (1). 

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