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Synthesis of New Cyano-Substituted bis-Benzothiazolyl Arylfurans and Arylthiophenes

Author(s): Livio Racanè | Vesna Tralić-Kulenović | David W. Boykin | Grace Karminski-Zamola

Journal: Molecules
ISSN 1420-3049

Volume: 8;
Issue: 3;
Start page: 342;
Date: 2003;
Original page

Keywords: bis-Benzothiazole | 6-Cyanobenzothiazole | Furan | Thiophene

The new compounds 2-[4-(6-cyanobenzothiazol-2-yl)phenyl]-5-(6-cyano-benzothiazol-2-yl)furan (6a) and 2-[4-(6-Cyanobenzothiazol-2-yl)phenyl]-5-(6-cyano-benzothiazol-2-yl)thiophene (6b) were synthesized by multi-step reactions from the corresponding 2-furan and 2-thiophene carboxaldehydes (route A), as well as from 2-furan and 2- thiophene carboxylic acids (route B). Route B involves one less step than route A, but the overall yields of the reactions are considerably lower.
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