Synthesis and properties of Oligo-6-(2-thienyl)pentafulvenes
β Scribed by Takeshi Kawase; Hiroyuki Kurata; Tatsuya Morikawa; Masaji Oda
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- French
- Weight
- 250 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Oligo-6-(2-thienyl)pentafulvenes, synthesized up to a tetramer by application of a new pentafulvene synthesis, show considerably low reduction potentials to suggest ready formation of polyanions or polyanion radicals with oligoacetylene spines.
π SIMILAR VOLUMES
The reactlon of 2,4-dl-t-butyl-cyclopentadlene-I-carbaldehyde with oxalyl chloride or oxalyl bromide provides stable 6-chloro-and 6bromo-pentafulvenes, respectively Several nucleophlllc displacement reactIons of the new compounds are described Pentafulvenes carrying electron donating or wIthdrawIng
## Abstract Activated dihydridocarbonyltris(triphenylphosphine)ruthenium catalyzes the cyclodimerization of both bis(2βthienyl)acetylene and bis(3βthienyl)acetylene to yield, respectively, 4,5,6βtris(2β²βthienyl)βbenzo[__b__]thiophene and 5,6,7βtris(3β²βthienyl)benzo[__b__]thiophene. These fluoresce
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