4-ethoxyphenyl 4-methoxyphenyl

Ethoxyphenyl)(4-methoxyphenyl)methanone, 598 (2-Methoxy-5-methylphenyl)(4-metlioxyphenyl)methanone, 634... 

Ethyl, methyl > m-tolyl, phenyl >/>-tolyl, p-ethoxyphenyl, p-methoxy-phenyl, o-tolyl, o-ethoxyphenyl, o-methoxyphenyl > cyclohexyl, mesityl, 1-naphthyl. The reaction is catalyzed by metal salts such as aluminum chloride. 

Phenyl, 4-methoxyphenyl, and 4-ethoxyphenyl tellurium thiocyanates are known only in the form of their complexes with thiourea1,2 ethylenethiourea3, triphenylarsine oxide, 3-methylpyridine, 3-methylpyridine /V-oxidc, or 4-methylpyridine Af-oxide2. These compounds were prepared from the diaryl ditellurium compounds, thiocyanogen, and the ligands2. 

Similarly prepared were tetraphenylarsonium phenyl ( dibromo ) tellur ate (II triphenylmethylphosphonium 4-methoxyphenyl ( dibromo ) tellur ate (II) triphenylmethylphosphonium 4-methoxyphenyl ( diiodo ) tellur ate (II) triphenylmethylphosphonium 4-ethoxyphenyl( diiodo ) tellur ate (II) triphenylmethylphosphonium 2-naphthyl ( diiodo )tellurate( II) ... 

Methoxyphenyl Tellurium Trifluoride h A 100 m/ two-necked flask fitted with a magnetic stirrer and a reflux condenser is charged with 1.3 g (6 mmol) of silver fluoride and 30 ml of dry toluene. The stirred suspension is heated to reflux, 0.68 g (2 mmol) of 4-methoxyphenyl tellurium trichloride are added in small portions, and refluxing is continued for 3 h. The mixture is allowed to cool to 20°, silver chloride is Altered off, and light petroleum is added to the filtrate. The precipitated product is collected and dried m.p. 176-178°. 4-Ethoxyphenyl tellurium trifluoride (m.p. 204°) was similarly prepared. 

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