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1-Alkyl-4-(arylamino)quinolinium-3-thiolates and 7-Alkyl-12H-quino[3,4-b]-1,4-benzothiazinium Salts

✍ Scribed by Andrzej Zięba; Andrzej Maślankiewicz; Kinga Suwińska


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
362 KB
Volume
2000
Category
Article
ISSN
1434-193X

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A one-pot synthesis of the 1-benzopyrano
✍ Sourav Maiti; Suman Kalyan Panja; Chandrakanta Bandyopadhyay 📂 Article 📅 2010 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 402 KB

## Abstract magnified image 2‐(Alkyl/arylamino)chromone‐3‐carbaldehyde reacts with Meldrum's acid, hippuric acid, 4‐hydroxycoumarin, diethyl malonate, ethyl acetoacetate, or ethyl benzoylacetate to produce 1‐benzopyrano[2,3‐__b__]pyridine‐2,5‐dione moiety, but ethyl cyanoacetate and malononitrile r