フルオレン誘導体の研究 (第10報)

4, 4', 4''-トリブロムートリビフェニレンープロパンおよび4'一プロムートリビフェニレンープロパンについて

抄録

4-Bromofluorenone was obtained from diphenic acid through fluorenone-4-carboxylic acid. It was further converted into 4, 9-dibromofluorene which was changed to 4, 4'-dibromo-bisdiphenyleneethylene by alkali. 4, 4', 4''-Tribromotribiphenylenepropane was synthesized by Michael condensation of the ethylene and 4-bromofluorene. Similarly, 4'-bromotribiphenylenepropane was obtained from bisdiphenyleneethylene and 4-bromofluorene. Thermal decomposition of these compounds yielded 4-bromofluorene, 4, 4'-dibromobisdiphenyleneethylene and-ethane, and bisdiphenyleneethylene and-ethane etc., these compounds being separated and confirmed respectively.