Phenyl-ethylene

The insoluble material consists of silica, l,l-di-(/)-chloro-phenyl)-ethylene and a small amount of di-(/>-chlorophenyl)-methane (melting at 54-55° when purified), formed by decarboxylation of the acid. 

Polystyrene Poly(phenyl ethene) Poly(l-phenyl ethylene)... 

Phenyl ether-biphenyl vapor mixture (Dowtherm A) Phenyl ethylene (styrene)... 

The cycloaddition of nitrones to enamines results in the formation of an isoxazolidine (179,180). The reaction of l-(N-pyrrolidino)- -phenyl-ethylene (133) with nitrone 134 producing isoxazolidine 135 illustrates this type of cycloaddition (180). 

Styrolene, CgHg, also known as styrol, is phenyl-ethylene, of the constitution. 

Styrene (Phenyl Ethylene, Ethenylbenzene or Vinylbenzene). HsCH2,mw 104.16,... 

A new branched carbazole derivative with phenyl ethylene moieties attached, l,3,5-tris(2-(9-ethylcarbazyl-3)ethylene)benzene (TECEB, 41) (Scheme 3.15), was prepared as a HTM for OLEDs [86], TECEB has a HOMO energy level of —5.2 eV and hole-drift mobility of 1(T 4 cm2/(V s), comparable to NPD. The device performance (maximum luminance of about 10,000 cd/m2 and current efficiency of 3.27 cd/A) in a standard HTL/tris-(8-hydroxyquino-line) aluminum double-layer device is also comparable to NPD, but TECEB has a higher Tg (130°C) and its ease of synthesis is superior to NPD. Distyryl units linked to a TPD derivative, A, A"-bis(4-(2,2-diphenylethenyl)-phenyl)-jY,jV -di(p-tolyl)-bendidine (DPS, 42) (Scheme 3.15), reported by Yamashita and coworkers, showed good hole transport properties and improved thermal stability compared with the parent TPD [87]. 

Synonyms AI3-24374 Annamene BRN 1071236 C-07083 CCRIS 564 Cinnamene Cin-namenol Cinniminol Cinnamol Diarex HF77 EINECS 202-851-5 EINECS 273-493-5 Eth-enylbenzene FEMA No. 3233 NCI-C02200 NSC 62785 Phenethylene Phenylethene Phenyl-ethylene Styrene monomer Styrol Styrolene Styron Styropol Styropor UN 2055 Vinyl benzene Vinyl benzol. 

Synonyms 1-Methyl-1-phenyl ethylene iso-propenylbenzene (3-phenylpropylene... 

The most commonly observed dimerization is that of alkenes to form cyclobutane derivatives. Nonconjugated alkenes such as cyclopentene and norbornene are dimerized in the presence of a sensitizer, whereas conjugated alkenes dimerize directly dimerizations of the second type have been observed in dienes, phenyl-ethylenes, and a,/9-unsaturated carbonyl, cyano, and nitro derivatives. The precise structure and stereochemistry of many of these dimers is uncertain, although it is known to be influenced by the solvent, by the presence and nature of substituents, and by the use of a sensitizer. The structures of dimers formed in solid-state irradiations are often determined by crystal structure. 

Phenylethyl bromide, AM83 Phenyl ethylene, AM46... 

The temperature dependence of AH2 for chloral-PC (Fig. 37) shows that the motions of phenyl rings occur above -80°C. Furthermore, the doublet shape observed for the lH spectrum above room temperature presents a splitting constant of 25 d= 0.2 G, which corresponds to the static interaction between the 2,3 phenyl protons, indicating that the phenyl motions do not affect the dipole-dipole interaction parallel to the 1,4 phenyl axis. A quantitative analysis of the intra- and inter molecular contributions to AH2 leads to the conclusion that the phenyl motions correspond to either isolated or concerted rotations around the 1,4 axis, with little (if any) reorientation of this axis. In addition, it excludes other motions as crankshaft motions, or motion of the phenyl-ethylenic unit as a group. The decrease of AH2 above - 40 °C could be intermolecular in nature. 

Styrene (phenyl ethylene, vinyl benzene freezing point -30.6°C, boiling point 145°C, density 0.9059, flash point 31.4°C) is made from ethylbenzene by dehydrogenation at high temperature (630°C) with various metal oxides as catalysts, including zinc, chromium, iron, or magnesium oxides coated on activated carbon, alumina, or bauxite (Fig. 1). Iron oxide on potassium carbonate is also used. 

A similar synthetic route was adopted by Stadler et al. for the synthesis of (PS)(PB)(PMMA) stars [54] as shown in Scheme 21. Living PS chains were end-capped with l-(4-bromomethylphenyl)-l-phenyl ethylene to produce the macromonomer. The capping reaction with DPE was employed in order to reduce the reactivity of the PSLi chain ends thus avoiding several side reactions (trans-metallation, addition to the double bond of the DPE derivative). The next step involved the linking of living PB chains, prepared in THF at -10 °C to the end double bond of the macromonomer. This produces a new active center which was used to initiate the polymerization of MMA leading to the formation of the desired product. 

Poly(sodium styrenesulfonate) Poly[l-(4-[2-(triethylammonio)ethyl]-phenyl)ethylene bromide] 81-85... 

Phenyl-2-bromobutene-r, 6, 27 Phenyl-4-bromo 2-butene-i, 6, 2.1 iV-Phenyl carbazole, 8,119 Phenyl ethylene, 8, 84 Phenylhydhazine, 2, 71 /3-Phenyl Hydroxylamine, 4, 19, ff... 

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