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    4-phenyl 2-(2{40 -hydroxy-meta-terphenyl-5{40 -yl)-dibenzofuran and 4,4{40 -diphenyl-2,2{40 -bidibenzofuran
    6.
    发明授权
    4-phenyl 2-(2{40 -hydroxy-meta-terphenyl-5{40 -yl)-dibenzofuran and 4,4{40 -diphenyl-2,2{40 -bidibenzofuran 失效
    4-苯基-2-（2- {40-羟基 - 甲基] -5- {40 -YL] - 二苯并呋喃和4,4 {40-二苯基-2,2（40-二苯并呋喃

    公开(公告)号：US3673219A

    公开(公告)日：1972-06-27

    申请号：US3673219D

    申请日：1970-06-23

    申请人： GEN ELECTRIC

    发明人： HAY ALLAN S

    IPC分类号： C07C37/055 ,  C07C37/07 ,  C07C37/64 ,  C07D307/91 ,  C07D5/44

    CPC分类号： C07D307/91 ,  C07C37/055 ,  C07C37/07 ,  C07C37/64 ,  Y02P20/582 ,  C07C39/15 ,  C07C39/235

    摘要： Heating 3,3'',5,5''-tetraphenyldiphenoquinone above its melting point but below its carbonization temperature causes an intramolecular disproportionation reaction the progress of which is monitored by the color change. Three sexiphenyl compounds are produced which are separable by chromatography. Two of the products are new compounds, having one and two dibenzofuran groups, respectively in their structures. The bidibenzofuran compound can be converted to 5'',5''''-diphenyl-m-quaterphenyl2,2''''''-diol, useful in the preparation of polycarbonates and polyester. The other two products can be reworked to serve as a recycle feedstock.

    摘要翻译： 加热高于其熔点但低于其碳化温度的3,3'，5,5'-四苯基联苯醌引起分子内歧化反应，其进展由颜色变化监测。 产生三种通过色谱分离的二苯基化合物。 其中两种产物是新化合物，其结构中分别有一个和两个二苯并呋喃基团。 二苯并呋喃化合物可以转化成可用于制备聚碳酸酯和聚酯的5'，5“ - 二苯基 - 间四苯基-2,2” - 二醇。 另外两种产品可以重新加工，作为回收原料。