发明授权
- 专利标题: Process for the production of pyranthrones or flavanthrones
- 专利标题(中): 吡喃酮或黄酮酮的生产方法
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申请号: US886203申请日: 1978-03-13
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公开(公告)号: US4182882A公开(公告)日: 1980-01-08
- 发明人: Jurgen Markert , Hans Morawietz
- 申请人: Jurgen Markert , Hans Morawietz
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: CHX3570/77 19770322
- 主分类号: C09B3/42
- IPC分类号: C09B3/42 ; C09B5/20
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.
公开/授权文献
- US5355091A Apparatus for real time interference signal rejection 公开/授权日:1994-10-11