77633-12-6Relevant academic research and scientific papers
A Convenient Synthesis of 2-Arylidene-3,8-dihydro-2H-cycloheptafuran-3,8-diones
Jin, Zhong-Tian,Liu, Zhong,Imafuku, Kimiaki
, p. 811 - 812 (2007/10/02)
3-(2-Bromoacetyl)tropolone (1) reacted with several benzaldehydes 2a-e to afford 2-arylidene-3,8-dihydro-2H-cycloheptafuran-3,8-diones 3a-e in very good yield.
Cyclodehydrogenation of 3-Cinnamoyltropolones with 2,3-Dichloro-5,6-dicyanobenzoquinone
Imafuku, Kimiaki,Yamaguchi, Kazuko
, p. 2855 - 2856 (2007/10/02)
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
OXIDATIVE CYCLIZATION OF 3-CINNAMOYLTROPOLONES WITH MANGANESE(III) ACETATE AND LEAD(IV) ACETATE
Imafuku, Kimiaki,Suezaki, Kazunori,Matsumara, Hisashi
, p. 637 - 639 (2007/10/02)
3-Cinnamoyltropolones (1a-i) were oxidized with manganese(III) acetate and lead(IV) acetate to give 2-arylidene-3,8-dihydro-2H-cycloheptafuran-3,8-diones (4a-i), which have an aurone-like structure.
