Bulletin of the Chemical Society of Japan p. 1158 - 1166 (1989)
Update date:2022-07-29
Topics:
Shindo, Kimio
Ishikawa, Sumio
Nozoe, Tatsuo
2-Chloro- or 2-methoxytropone reacts with o-phenylenediamine to give 2-(D-aminoanilino)tropone, which upon heating provides 6H-cycloheptaquinoxaline (10a).Upon acidification, 10a reversibly gives a green cation, 9a. 10a is easily converted, especially
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