Manufacture of pyranthrones
    5.
    发明授权
    Manufacture of pyranthrones 失效
    吡啶的制备

    公开(公告)号:US3673220A

    公开(公告)日:1972-06-27

    申请号:US3673220D

    申请日:1970-10-09

    申请人: BASF AG

    发明人: BOCK GUSTAV

    CPC分类号: C09B3/42

    摘要: A new process for the manufacture of pyranthrones (I) from 2,2'' -dialkyl-1,1''-dianthraquinonyls (II) by heating (II) at from 150* to 210* C. in polar organic solvents in the presence of alkali metal acetates.

    摘要翻译: 通过在极性有机溶剂中在150-210℃下加热(II),在2,2'-二烷基-1,1'-二蒽醌(II)存在下,从2,2'-二烷基-1,1'-二蒽醌(II)制备吡喃酮 碱金属乙酸盐。

    Process for the production of pyranthrones or flavanthrones
    8.
    发明授权
    Process for the production of pyranthrones or flavanthrones 失效
    吡喃酮或黄酮酮的生产方法

    公开(公告)号:US4182882A

    公开(公告)日:1980-01-08

    申请号:US886203

    申请日:1978-03-13

    IPC分类号: C09B3/42 C09B5/20

    CPC分类号: C09B5/20 C09B3/42

    摘要: A process for the production of pyranthrones or flavanthrones which comprises reacting substituted or unsubstituted 2,2'-dialkyl-1,1'-dianthraquinonyls or 2,2'-diacylamino-1,1'-dianthraquinonyls respectively in a two-phase system of aqueous organic solvents using quaternary ammonium or phosphonium compounds as catalysts.

    摘要翻译: 制备吡喃酮或黄酮酮的方法,其包括将取代或未取代的2,2'-二烷基-1,1'-二蒽醌基或2,2'-二酰基氨基-1,1'-二蒽醌基分别在两相体系中 使用季铵或鏻化合物作为催化剂的含水有机溶剂。

    6,14-dichloropyranthrone
    9.
    发明授权
    6,14-dichloropyranthrone 失效
    6,14-DICHLOROPYRANTHRONE

    公开(公告)号:US3790603A

    公开(公告)日:1974-02-05

    申请号:US3790603D

    申请日:1971-02-16

    申请人: BASF AG

    发明人: GRASER F BOCK G

    IPC分类号: C09B3/42

    CPC分类号: C09B3/42

    摘要: 6,14 - DICHLOROPROPYRANTHRONE AND A PROCESS FOR ITS MANUFACTURE FROM 3,3''-DICHLORO-2,2''-DIMETHYL-1,1''-DIANTHRAQUINOYL. 6,14-DICHLOROPYRANTHRONE IS A PIGMENT DYE HAVING EXCELLENT COLORISTIC PROPERTIES.