Bis 4-methoxyphenyl

Diorgano ditellurium compounds eliminate tellurium on heating to form the corresponding diorgano tellurium. These reactions begin above 200° in the absence of a solvent but proceed in good yields only above 300°8. Less stable substrates, e.g., bis[3-methoxyphenyl]... 

Bis[3-methoxyphenyl] Tellurium Oxide1 0.80 g (2.3 mmol) of bis[3-methoxyphenyl] tellurium and 0.50 g (2.3 mmol) of sodium periodate are added to 30 ml of acctonitrilc/methanol/water (1/1/1, v/v/v) and the mixture is heated under reflux for 2 h. The mixture is allowed to cool, 100 ml of water are added, and the mixture is extracted 3 times with 30 ml of chloroform. The combined extracts are evaporated, the residue is chromatographed on silica gel with chloroform/methanol (9/1, v/v) as the mobile phase. The eluate is evaporated and the residue is recrystallized from benzene yield 0.26 g (22%) m.p. 189-191°. According to elemental analyses, the product contains two molecules of water and 1.5 molecules of benzene per molecule of tellurium oxide. 

Tokuhisa et al. (1995) investigated electron transport in a series of oxadiazole (OX) derivatives doped into PC. The derivatives were 2-(4-biphenyl)-5-(4-r-butylpheny 1)-1,3,4-oxadiazole (PBD), 2,5-bis( 1 -naphthyl)-1,3,4-oxadiazole (BND), 2,5-bis(3-methoxyphenyl)-l,3,4-oxadiazole (BMD), 2,5-bis(4-diphenylaminophenyl)-l,3,4-oxadiazole (BAPD), and 2,5-bis(4-diethylaminophenyl)-l,3,4-oxadiazole (BDB). Figure 29 shows the concentra-... 

Poly(2-methoxy-5-(3, 7 -dimethyloctyloxy)-l,4-phenylene vinylene), 117 Poly(2-methoxy-5-(2 -ethylhexyloxy)-l,4-phenylene vinylene), 31, 50, 91, 117 Poly(methyl-bis-(3-methoxyphenyl)-(4-propylphenyl)amine)siloxane, 42 Poly(methyl methacrylate), 32, 41, 100, 341, 499 Poly(2-methyl-5-vinyl)tetrazole, 319 Poly(l,5-naphthylene vinylene), 98 Poly(l,3,4-oxadiazole), 329 Poly(l,3,4-oxadiazole-2,5-diyl-l,2-vinylene), 337... 

Photocycloaddition. Synthesis of the highly carcinogenic polycycHc hydrocarbons, eg (51) [72735-91-2] may be affected by photocycloaddition of 2-bromo-3-methoxy naphthoquinone [26037-61-6] with 1,1-diarylethylenes such as l,l-bis(p-methoxyphenyl)ethene (41). 

Dihydro-2(3H)-turanthlone (3).2 Butyrolaclone 1 (0 86 g. 10 mmoO and [2,4-bis(4-methoxyphenyl)-l, 3-dilhia 2,4-diphospheiane-2,4-disui(ide) 2 (2 02 g, 5 mmol) in PhMe (10 mL) were heated to reflux until no more starling malenal was detected (TLC or GC) After cooling, the solvent was stripped off and the mixture was punlied on silica gel using CH2CI2 as eluent to afford 3, mp 96-97 C... 

Bis(4-methoxyphenyl)-l,3,2,4-d1thiadiphosphetane 2,4-disulfide Phos-phonotrithiolc acid, (p-methoxyphenyl)-bimol cyclic anhydrosuifide (8) ... 

The checkers distilled the anisole from calcium sulfate before use. This reagent functions not only as a reactant, but also as solvent. In some similar preparations the intermediate trichloride is rather insoluble, as in the case of bis(3-methyl-4-methoxyphenyl)tellurium dichloride. The addition of co-solvents such as bis-(2-methoxyethyl) ether is beneficial. ... 

Reductive Coupling of 4-Methoxy-a,ct,OrTnfIuoroacetophenone cis-and trans-l,1,1,4,4,4-Hexafluoro-2,3-bis(4-methoxyphenyl)-2-butene [67 ... 

A sulfoxide was obtained by oxidation of 8-[(4-trifluoromethylmercapto-phenyl)methoxy] derivative 358 with 36% H2O2 in AcOH (98MIP7) and by oxidation of l-[2-(4-thiomorfolin-l-yl)acetyl]-7-(3-methoxyphenyl)-A-methyl-A- [3,5-bis(trifluoromethyl)phenyl]ethyl -5-oxo-1,2,3,5-tetrahydro-pyrido[l,2,3-i/ ]quinoxaline-6-carboxamide with 3-chloroperbenzoic acid (01MIP12). A 7-[(4-fluorophenylsulfonyl)methyl] derivative was obtained by oxidation of a 7-[(4-fluorophenylsulfanyl)methyl]perhydropyrido[l,2-u] prazine with 3-chloroperbenzoic acid in CHCI3 (01EUP1074257). 

C21H43N,O2 56672-S7-S) see Hexetidine (/f, S )-2,3-bis(3-fluoro-4-methoxyphenyl)pentane (C19H22F2O2 79295-55-9) see Bifluranol [Pg.2310]

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