Phosphoranylidene substituted cyclic compounds
    10.
    发明授权
    Phosphoranylidene substituted cyclic compounds 失效
    磷酸二苯酯取代的环状化合物

    公开(公告)号:US3655766A

    公开(公告)日:1972-04-11

    申请号:US3655766D

    申请日:1968-06-07

    Applicant: MONSANTO CO

    CPC classification number: A01N57/18 C07F9/5352 C08K5/50 D06M13/285

    Abstract: STABLE, YLIDE-SUBSITUTED 1,3-CYCLOBUTANEDIONES ARE SYNTHESIZED FROM TRIORGANOPHOSPHORANYLIDENEKETONE AND ALDEHYDES OR ACTIVE KETONES. ANALOGOUS ADDUCTS ARE FORMED FROM TRIOGANOPHOSPHORANYLIDENEKETENE AND KETENS IN A ONE-STEP REACTION. IN CONTRAST TO THE ABOVE REACTIONS YIELDING SUBSTITUED 1,3-CYCLOBUTANDIONES, REACTION OF ARYL ISOCYANATES WITH TRIOGANOPHOSPHORANYLIDENEKETENE RESULTS IN 2:1 ADDUCTS HAVING SIX-MEMBERED RING STRUCTURES. THE NEW COMPOUNDS ARE USEFUL AS FIRE RETARDANTS, BIOLOGICAL TOXICANTS, PLASTICIZER, TEXTILE TREATING AGENTS AND LUBRICANT ADDITIVES.

Patent Agency Ranking