Chemical and Pharmaceutical Bulletin p. 1322 - 1324 (1994)
Update date:2022-08-02
Topics:
Fujiwara
Okabayashi
The Skraup reaction of amino-9H-thioxanthen-9-ones was conducted in the presence of glycerol, fuming sulfuric acid, nitrobenzene, iron(II) sulfate and boric acid. 1-Amino-9H-thioxanthen-9-one (1) gave 12H- [1]benzothiopyrano[2,3-h]quinolin-12-one (5). 2-A
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