Benzo-1, 4-thiazino[3,2-b]tropone 5-Oxides and 5, 5-Dioxides
作者:Tetsuo Nozoe、Toyonobu Asao、Kazuko Takahashi
DOI:10.1246/bcsj.39.1988
日期:1966.9
benzo-1, 4-thiazino[3,2-b]tropone and its 8-isopropyl derivative with hydrogen peroxide afforded the corresponding 5-oxides or 5, 5-dioxides. The stability of these oxides to heating, acid and alkali was examined. The bromination or nitration of these oxides gave mainly 9-bromo or 9-nitro derivatives. 7- or 9-Aminobenzo-1, 4-thiazino[3,2-b]tropones were obtained by the reduction of the corresponding nitro