The Synthesis and Reactions of Benzo-1, 4-thiazinotropone Derivatives
作者:Tetsuo Nozoe、Toyonobu Asao、Kazuko Takahashi
DOI:10.1246/bcsj.39.1980
日期:1966.9
bromination of benzo-1, 4-thiazino[3,2-b]tropone (I) and its 8-isopropyl derivative (II) afforded 7- and/or 9-substituted compounds. In the case of nitration, 5-oxide and 5-oxide of 7-nitro derivative were obtained. The reaction of I or II with thionyl chloride unexpectedly gave the 7, 9-dichloro derivative of I, or four kinds of chloro derivatives of II.