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Synthesis and photosynthesis of substituted benzo(3, 2-c)quinolones

Two benzo(b)thieno(3, 2-c)quinolones with 3-dimethylaminopropyl substituent in the quinolono or amido part of the molecule: 9-(3-dimethylaminopropyl)benzo(b)thienyl(3, 2-c) quinolin-6(5H-one and 5-N-(3-dimethylaminopropyl)-9-carbomethoxybenzo(b)thienyl(3, 2-c)quinolin-6-one are prepared by multystep synthesis involving as key step a photochemical dehyddrohalogenation reaction.

Photodehydrohalogenation; benzo(b)thieno(3; 2-c)quinolones

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