Tris-p-methoxyphenyl ethylene

The following method is described in U.S. Patent 2,430,891. To a solution of 10 parts of tris-p-methoxyphenyl ethylene in 35 to 40 parts of carbon tetrachloride Is added a solution of 2.0 parts of chlorine in 50 parts of carbon tetrachloride, with stirring, and over a period of Vj hour. The carbon tetrachloride is then removed by distillation on a steam bath and the residual oil is recrystallized from 250 to 400 parts of methanol, decolorizing with charcoal or the like if necessary. Tris-p-methoxyphenyl chloroethylene is obtained in a yield of 65 to 75%. It melts at 113° to 114°C. 

Pyridine may react as a nucleophile with radical cations to pyridinium salts, as in the electrolysis of anthracene in acetonitrile-pyridine which yields a bis-pyridinium-adduct 283 With tris (p-methoxyphenyl)ethylene a tripositive tripyridinium cation is formed (Eq. (124) ) 284 ... 

SYNS ANISENE CHLORESTROLO 1,1, 1"-(1-CHLORO-l-ETHENYL-2-YLIDENE)-TRIS(4-METHOXYBENZENE) CHLOROTRIANIZEN CHLOROTRISIN CHLOROTRIS(p-METHOXY-PHENYL)ETHYLENE CHLORTRIANTSEN CLORESTROLO CLOROTRISIN CTA HORMONISENE KHLORTRIANIZEN MERBENTUL METACE NSC-10108 RIANIL TACE TACE-FN TRI-p-ANISYLCHLOROETHYLENE TRIS(p-METHOXYPHENYL)CHLOROETHYLENE... 

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