Photochemistry of 2,3-, 4,5,- and 2,7-Azepinobenzodioxins: Photochemical Rearrangement of 2,7-Azepinobenzodioxin to 2,3- and 4,5-Azepinobenzodioxins, and Formation of 2,3-Dihydrodibenzodioxin from 2,3- and 4,5-Azepinobenzodioxins
作者:Katsuhiro Saito、Katsuhiko Ono、Yoshitaka Emoto、Kentaro Miyanaga
DOI:10.3987/com-02-s30
日期:——
Photoirradiation of a 2,7-azepinobenzodioxin with a low pressure mercury lamp afforded 2,3- and 4,5-azepinobenzodioxins, a 2,3-dihydrodibenzodioxin, and an azepine derivative. The analogous irradiation of a 2,3-azepinobenzodioxin gave a 2,3-dihydrodibenzodioxin. On the other hand, a 4,5-azepinobenzodioxin formed a dihydropyrrole derivative accompanied by a 2,3-dihydrodibenzodioxin. The effects of solvents and sensitizers were investigated.