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    3.
    发明专利
    未知

    公开(公告)号：DE1210832B

    公开(公告)日：1966-02-17

    申请号：DEB0074473

    申请日：1963-11-30

    Applicant: BASF AG

    Inventor： FREYSCHLAG DR HERWIG ,  REIF DR WERNER ,  NUERRENBACH DR AXEL ,  SARNECKI DR WILHELM

    IPC: A01N57/22 ,  C07F9/535

    Abstract: The invention comprises ylenals, (i.e. compounds which in the same molecule contain a phosphorylene group and an aldehyde group in conjunction) of the formula where Ar is an aryl radical which may be substituted by alkyl or alkoxy groups; R1, R2 and R3 are H or alkyl groups and n is an integer from 1 to 6. They may be obtained by reacting a proton acceptor in liquid phase with a quaternary phosphonium salt of the formula where X(-) is a monovalent anion. Suitable proton acceptors are bases having a pK value below or about 9 such as alcoholates, ammonia, amines, e.g. alkylamines or heterocyclic amines, or aqueous alkali. Suitable solvents are water, dimethyl-formamide or sulphoxide, acetonitrile, alcohol, hydrocarbons, halogenated hydrocarbons or mixtures thereof. Specified products are triphenylphosphine-2-formylpropen-1-yl-1-methylene, triphenylphosphine-3-formylpropen-(2)-yl-2-methylene, triphenylphosphine-2 - methyl - 4 - formylbutadien - (1,3) - yl - 1 - methylene, triphenylphosphine-1-methyl-4-formylbutadiene - (1,3) - yl - 1 - methylene, and triphenylphosphine - 2,6 - dimethyl - 6 - formylhexatrien - (1,3,5) - yl - 1 - methylene. Examples are given for the preparation of triphenylphosphine - 2 - formylpropen - 1 - yl-methylene. The products are intermediates for the synthesis of dyes, pharmaceuticals, plant protection agents, food dyes and carolenoids. The phosphonium salts of Formula I may be obtained by reacting a suitable halogen compound with a triarylphosphine in an organic solvent.

    6.
    发明专利
    未知

    公开(公告)号：DE1203264B

    公开(公告)日：1965-10-21

    申请号：DEB0072042

    申请日：1963-05-24

    Applicant: BASF AG

    Inventor： NUERRENBACH DR AXEL ,  SARNECKI DR WILHELM ,  REIF DR WERNER

    IPC: C07F9/54

    Abstract: 1,056,883. Controlling water snails. BADISCHE ANILIN- & SODA-FABRIK A.G. May 20, 1964 [May 24, 1963] No. 20701/64. Heading ASE. [Also in Division C2] Water snails may be controlled by means of #-ionylidenethyl phosphonium salts in which one of the four ligands of the phosphorous atom is the #-ionylidenethyl radical.

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