Cyclodehydrogenation of 3-Cinnamoyltropolones with 2,3-Dichloro-5,6-dicyanobenzoquinone
作者:Kimiaki Imafuku、Kazuko Yamaguchi
DOI:10.1246/bcsj.54.2855
日期:1981.9
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-dihydrocyclohepta[b]pyran-4,9-diones, while 2′-and/or 4′-methoxy-substituted 3-cinnamoyltropolones gave 2-arylmethylene-2H-3,8-dihydrocyclohepta[b]furan-3,8-diones.