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18 条记录 (耗时 0.015 秒)

    Aromatic mono(nitrile carbonates)
    5.
    发明授权
    Aromatic mono(nitrile carbonates) 失效
    芳香甘油（NITRILE CARBONATES）

    公开(公告)号：US3560519A

    公开(公告)日：1971-02-02

    申请号：US3560519D

    申请日：1969-03-28

    申请人： SINCLAIR RESEARCH INC

    发明人： BURK EMMETT H JR ,  CARLOS DONALD D

    IPC分类号： C07D273/00 ,  C07D85/06

    CPC分类号： C07D273/00

    摘要： COMPOUNDS OF THE FORMULA

    5-R-1,3,4-DIOXAZOL-2-ONE

    WHEREIN R IS AN AROMATIC HYDROCARBON RADICAL OF 1 TO 3 AROMATIC RINGS WHICH CAN BE SUBSTITUTED WITH, FOR INSTANCE, HALOGEN, NITRO, OR ALKOXY, E.G., METHOXY, GROUPS EXCEPT THAT WHEN R IS MONOCYCLIC, R IS SUBSTITUTED ON THE RING WITH AT LEAST ONE OF THE AFOREMENTIONED GROUPS. THE COMPOUNDS CAN BE MADE BY REACTING THE CORRESPONDING HYDROXAMIC ACIDS AND PHOSGENE.

    Aromatic-poly(nitrile carbonates)
    9.
    发明授权
    Aromatic-poly(nitrile carbonates) 失效
    芳族聚碳酸酯（NITRILE CARBONATES）

    公开(公告)号：US3560518A

    公开(公告)日：1971-02-02

    申请号：US3560518D

    申请日：1968-03-18

    申请人： SINCLAIR RESEARCH INC

    发明人： BURK EMMETT H JR ,  CARLOS DONALD D

    IPC分类号： C07D273/00 ,  C07D85/06

    CPC分类号： C07D273/00

    摘要： THERE ARE DISCLOSED COMPOUNDS OF THE FORMULA:

    (2-(O=)-1,3,4-DIOXAZOL-5-YL)(N+1)-A

    WHEREIN N IS AN INTEGER OF 1 TO 3 AND A IS AROMATIC HYDROCARBON OF UP TO ABOUT 30 CARBON ATOMS AND OF 2 TO 3 MONOCYCLIC AROMATIC RINGS OR ONE FUSED BICYCLIC AROMATIC RING OR ONE FUSED TRICYCLIC AROMATIC RING. THE COMPOUNDS CAN BE MADE BY REACTING THE CORRESPONDING HYDROXAMIC ACIDS AND PHOSGENE. THE COMPOUNDS ARE USEFUL AS, INTER ALIA, AROMATIC POLYISOCYANATE GENERATORS AND HAVE THE ADVANTAGE OVER CONVENTIONAL AROMATIC POLYISOCYANATES IN THAT THEY CAN BE EASILY HANDLED AND STORED.