Synthesis of a narrow band gap heterocyclic polymer: Poly-4,6-di(2-thienyl)thieno[3,4-c][1,2,5]thiadiazole
β Scribed by Tanaka, S.; Yamashita, Y.
- Book ID
- 120508617
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 168 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0379-6779
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## Abstract Four previously unknown polycyclic heterocyclic ring systems, namely, benzo[__h__]thieno[3β²,2β²:4,5]βthieno[2,3β__c__]quinoline (6), benzo[__h__]thieno[3β²,2β²:4,5]thieno[2,3β__c__]quinoline (11), benzo[__f__]thienoβ[3β²,2β²:4,5]thieno[2,3β__c__]tetrazolo[1,5β__a__]quinoline (12) and benzo[_
## Abstract Photocyclization of 3βchloroβNβ(3βphenanthryl)thieno[2,3β__b__]thiopheneβ2βcarboxamide (5) yielded only one of the two possible structural isomers, thieno[3β²,2β²:4,5]thieno[2,3β__c__]naphtho[1,2β__f__]quinolinβ6(5__H__)βone (6), which was further elaborated to afford the unsubstituted ri