Abstract
A series of novel benzo[f]thiopyrano[3,4‐b]quinolin‐11(8H)‐one derivatives were synthesized via the reaction of aryl aldehyde, 2H‐thiopyran‐3,5(4H,6H)‐dione, and β‐naphthylamine in glacial acetic acid. This protocol features mild reaction conditions, high yields, and short reaction time.
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