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- Title
Tetracyclic Heteroaromatic Systems-Synthesis of Ethoxycarbonylphenylpyrido[3',2':5,6]Thiopyranoquinolines.
- Authors
Khan, Muhammad Naeem; Khan, Misbahul Ain; Aslam, Noreen; Khan, Pir Bakhsh; ul Haq, Ehsan
- Abstract
7-benzylideneammo-5H-thiochromeno[2,3-b]pyridm-5-ones and 9-benzylideneamino-5H-thiochromeno[ 2,3-b]pyridin-5-ones, on reaction with ethyl pyruvate to afford 1-ethoxycarbonyl-3-phenyl-12Hpyrido[ 3',2':5,6]thiopyrano[3,2-f]quinoline-12-ones and 4-ethoxycarbonyl-2-phenyl-7Hpyrido[ 3',2':5,6]thiopyrano[3,2-h]quinoline-7-ones respectively by the two different methods. These products were precipitated by addition of ethanol, water (1:1), were purified by recrystalizing from appropriate solvents and were characterized from their IR, 1H-NMR, mass spectra and elemental analysis data.
- Subjects
MASS spectrometry; SCHIFF bases; PYRUVATES; DATA analysis
- Publication
Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences, 2021, Vol 64, Issue 3, p191
- ISSN
2221-6413
- Publication type
Article
- DOI
10.52763/pjsir.phys.sci.64.3.2021.191.194