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Preparation of e 1 2 bis 2 2' bithiophene 5 ylethylene and e 1 2 bis 2 2' 5' 2 terthiophene 5 ylethylene

, : Preparation of e 1 2 bis 2 2' bithiophene 5 ylethylene and e 1 2 bis 2 2' 5' 2 terthiophene 5 ylethylene. Heterocycles (Tokyo) 24(9): 2639-2644

(E)-1,2-Bis(2,2'-bithiophene-5-yl)ethylene and (E)-1,2-bis(2,2',5',2''-terthiophene-5-yl)ethylene were synthesized by reductive coupling reaction of 2,2'-bithiophene-5-carbaldehyde and 2,2':L5',2''-terthiophene-5-carbaldehyde, respectively, using a low-valent titanium reagent prepared from titanium(IV) chloride and zinc powder in tetrahydrofuran.

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