52762-41-1Relevant articles and documents
3,4-Bis(1,3-benzothiazol-2-yl)furan
Mrvos-Sermek,Tralic-Kulenovic,Nagl,Fiser-Jakic
, p. 2541 - 2543 (1996)
The title compound, C18H10N2OS2, was prepared and characterized on the basis of its 1H NMR and UV spectra, and X-ray diffraction analysis. The five-membered heterocyclic rings are flat and coplanar with their fused benzene rings. The furan ring is planar, with the 2-benzothiazolyl groups rotated out of plane by 6.3 (1) and 32.7 (1)°. The S atoms of the 2-benzothiazolyl groups are positioned anti with respect to one another.
THIENO, FURO AND SELENOPHENO-[3,4-C]PYRROLE-4,6-DIONE COPOLYMERS
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Paragraph 00112, (2014/03/25)
Novel photoactive copolymers based on thieno, furo or selenopheno-[3,4- c]pyrrole-4,6-dione-derivative are described herein. More specifically, the photoactive copolymers comprise repeating units of Formula I -[A1-A2]- I wherein A1 is an electron donating unit such as a mono or polycyclic heteroaryl that is unsubstitued or substituted with one or more C1-20-alkyl or C1-20-alkoxy; and A2 is an alkylfuro or alkylselenopheno-[3,4-c]pyrrole-4,6-dione-derivative. The photoactive copolymers are suitable for use in BHJ solar cells.
Thieno-, furo-, and selenopheno[3,4-c ]pyrrole-4,6-dione copolymers: Effect of the heteroatom on the electrooptical properties
Beaupre, Serge,Pron, Agnieszka,Drouin, Simon H.,Najari, Ahmed,Mercier, Lauren G.,Robitaille, Amelie,Leclerc, Mario
, p. 6906 - 6914,9 (2020/08/24)
New push-pull conjugated polymers based on furo[3,4-c]pyrrole-4,6-dione (FPD) and selenopheno[3,4-c]pyrrole-4,6-dione (SePD) have been synthesized and compared with their thieno[3,4-c]pyrrole-4,6-dione (TPD) analogues to investigate the effects of the heteroatom on the electrooptical properties. The copolymers were synthesized using either Stille cross-coupling or direct heteroarylation polymerization (DHAP), the latter method giving high molecular weights. Hypsochromic shifts of the band gaps were observed for FPD-based copolymers (sulfur substituted by oxygen) while small bathochromic shift was observed for SePD (sulfur substituted by selenium) when compared to its TPD analogue. These two new classes of conjugated polymers exhibit electrooptical properties that could lead to interesting bulk heterojunction plastic solar cells.
Carboxylic acid derivatives, medicaments comprising these compounds, their use and processes for their production
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, (2008/06/13)
The present application relates to the use of the carboxylic acid derivatives of general formula R1—A—B—R2 ??(I) wherein R1, R2, A and B are defined as in claim 1, the isomers and the salts thereof, particularly the physiologically acceptable salts thereof, which have an inhibitory effect on telomerase, processes for the preparation thereof, pharmaceutical compositions containing these compounds and the use thereof as well as the preparation thereof.