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    1.
    发明专利
    未知

    公开(公告)号：DE1136529B

    公开(公告)日：1962-09-13

    申请号：DEB0057214

    申请日：1960-03-25

    Applicant: BASF AG

    Inventor： FISCHER DR ADOLF ,  POMMER DR HORST ,  SCHEUERER DR GUENTER ,  STUMMEYER DR HERBERT

    IPC: C07D295/215

    Abstract: The invention comprises urea derivatives of the formula:- in which R and R1 each denotes hydrogen or a C1-4 alkyl or alkenyl group, or together form part of a heterocyclic ring which, apart from the nitrogen atom to which R and R1 are attached, contains no further nitrogen atom as a member of said ring, e.g. a morpholine, pyrrolidine or piperidine ring. The compounds are prepared either by reacting isoamyl isocyanate with a secondary amine of the formula HNRR1, or by reacting isoamylamine with a carbamyl chloride of the formula ClOC-NRR1.ALSO:A herbicidal composition comprises, as an active ingredient, a urea derivative of the formula in which R and R1 each denotes hydrogen or a C1-4 alkyl or alkenyl group, or together form part of a heterocyclic ring which, apart from the nitrogen atom to which R and R1 are attached, contains no further nitrogen atom as a member of said ring, together with a solid or liquid diluent such as water in conjunction with optional amounts of surface-active agents, organic solvents (e.g. methanol, isopropanol, isobutanol, xylene, toluene, cresol and cyclohexanone), talc, bentonite, pyrophyllite, diatomaceous earth silica gel and calcium nitrate.

    4.
    发明专利
    未知

    公开(公告)号：DE1244163B

    公开(公告)日：1967-07-13

    申请号：DEB0070230

    申请日：1963-01-05

    Applicant: BASF AG

    Inventor： SCHEUERER DR GUENTER ,  DICKHAEUSER DR HEINER

    IPC: C07F9/165

    Abstract: The invention comprises phosphorus compounds of the general formula wherein R is a methyl or ethyl radical which may be substituted, R1 is hydrogen or methyl of ethyl, X is oxygen or sulphur and n is an integer from 1 to 5. They may be obtained by reacting the corresponding O,O-dialkyl (or substituted alkyl) thio (or dithio) phosphoryl fatty acid with phosgene or oxalyl chloride, the reaction when phosgene is used being carried out in the presence of an N,N-dialkyl (or N-cyclic alkylene) substituted carboxylic acid amide of a C1-C4 aliphatic carboxylic acid or an N-alkyl substituted lactam. The substituted amide or lactam is used in small amount and if desired may also be present when oxalyl chloride is used. The reaction is suitably carried out at between 0 DEG and 100 DEG C., preferably between 20 DEG and 60 DEG C., and an inert solvent may be present, e.g. an aromatic hydrocarbon or a halogenated hydrocarbon,e.g. carbon tetrachloride or chlorobenzene. Detailed examples are given for the production of O,O-dimethyldithiophosphorylacetyl chloride, and a - and b - (O,O - diethyldithiophosphoryl)-propionyl chloride. O,O - dimethyldithiophosphorylacetyl chloride may be reacted with methyl amine to form O,O - dimethyldithiophosphorylacetic acid N-methylamide.

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