Reactions with Pyridine-2-Thiones: A New Route for the Synthesis of Several New Pyridines and Fused Azolo- and Azinopyridines
β Scribed by Eldin, Sanaa M.; Elneairy, Mohamed A. A.; Attaby, Fawzy A.; El-louh, Ali K. K.
- Book ID
- 118065381
- Publisher
- Taylor and Francis Group
- Year
- 2001
- Tongue
- English
- Weight
- 473 KB
- Volume
- 176
- Category
- Article
- ISSN
- 1042-6507
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π SIMILAR VOLUMES
## Abstract 6βAminopyridineβ2(1H)thiones **1** reacting with Ξ±βhaloβcompounds **2aβc** afforded the alkylthiopyridine derivatives **3aβc** which in turn cyclized to the corresponding thieno[2,3βb]pyridine derivatives **4aβc**. Several thieno[2,3βb]pyridine derivatives **7, 16, 19**, pyrido[3β²,2β²:4,
swrnnary: Three efficient routes to the title systems have been elaborated utilising 2-chloroquinoline-3-aldehyde acetals, 2-chloroquinoline-3ketones or 2-aminoquinoline-3-aldehydes. 2-Chloroquinoline-3-aldehydes (e.g.1: have been rendered readily available as described in earlier papers 2 and have