Bulletin of the Chemical Society of Japan p. 2855 - 2856 (1981)
Update date:2022-08-03
Topics:
Imafuku, Kimiaki
Yamaguchi, Kazuko
3-Cinnamoyltropolone and 3-(3-methoxycinnamoyl)tropolone were oxidized with 2,3-dichloro-5,6-dicyanobenzoquinone to give 2-phenyl- and 2-(3-methoxyphenyl)-4,9-dihydrocycloheptapyran-4,9-diones, while 2'- and/or 4'-methoxy-substituted 3-cinnamoyltropolo
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