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    SEPARATION OF A MIXTURE OF C4/HYDROCARBONS BY EXTRACTIVE
    1.
    发明授权
    SEPARATION OF A MIXTURE OF C4/HYDROCARBONS BY EXTRACTIVE 失效

    公开(公告)号：KR810001632B1

    公开(公告)日：1981-10-27

    申请号：KR780001604

    申请日：1978-05-26

    Applicant: BASF AG

    Inventor： BENDER D ,  STOKBURGER D ,  WAGNER U ,  VOLKAMER K ,  SCHWENTKER H

    IPC: C07C7/00

    Abstract: Sepn. of a C4-hydrocarbon mixt. is done by a series of 2 extn. columns(3),(5) with selective solvent. The withdrawn ext. is compressed from 3.5-7 to 6.5-22 bars fed to a heat exchanger, countercurrently heated by recycled solvent, and expanded. The gaseous phase, contg. 40-70% hydrocarbons, of the ext. is recycled into the extn. column, and the liq. phase is again expanded and fed into a solvent stripping column.

    HERBICIDAL AGENTS BASED ON ACETANILIDES
    6.
    发明授权
    HERBICIDAL AGENTS BASED ON ACETANILIDES 失效

    公开(公告)号：KR820001774B1

    公开(公告)日：1982-10-02

    申请号：KR790002441

    申请日：1979-07-20

    Applicant: BASF AG

    Inventor： EICKEN K ,  WUERZER B

    IPC: A01N33/06

    Abstract: Compns. contg. the N-azolylmenthylhaloacetanilides I(R =H, alkyl or alkoxy; R1 and R2 = H, halo, or alkoxy; X =CI or Br; A = halo, phenylalkyl, alkoxy, substituted azole) and the haloacetanilides II) R = alkyl, alkenyl, alkinyl or-A-R1;Y1 and Y2 = H, alkyl, dtc ; X = Br, or CI) are synergisticherbicides. Thus, in field expts. 2-chloro-2',6'-dimethyl-N-(pyrazol-1-ylmethyl)-acetanilide (0,25kg/ha), applied pre-emergence with 2-chloro-2',6'-dimethyl-N-(phenoxymethyl)acetanilide (0.5kg/ha) totally controlled sorghum halepense, stellaria media, and Alopecurus myosuroides.

    PROCESS FOR PREPARING NITROIMIDAZOLE DERIVATIVES
    7.
    发明授权
    PROCESS FOR PREPARING NITROIMIDAZOLE DERIVATIVES 失效

    公开(公告)号：KR820001686B1

    公开(公告)日：1982-09-17

    申请号：KR760002570

    申请日：1976-10-15

    Applicant: BASF AG

    Inventor： FLEIG HELMUT ,  DOCKNER TONI ,  KOHLMANN FRIEDRICH WILHELM ,  HAGEN HELMUT

    IPC: A61K31/41 ,  C07D417/06

    Abstract: Nitroimdazolyivinylthiadiazoles (I, R1 = C1-4 alkyl; R2 = H, CH3; R3 = H, C1-24 alkyl, substitutable ph, heteroallyl) useful agents for treating bacteria, fungi and protozoa, were prepd. by the reaction of 2-substituted-1,3,4-thiadiazole(II) and 5-nitroimidazole-2-carboxaldehyde(III) or its acetal at elevated temp. Thus, 2,5-dimethy 1-1,3,4-thiadiazole and 1-methyl-5-nitroimidazole-2-carboxy aldehyde were refluxed in glacial acetic acid and acetic anhydride in the presence of ZnCl2 for 10 hr and recrystallized with DMF to give -methyl-5-[2-(1-methyl-5-nitroimidazol-2-yl)-vinyl -1,3,4-thiadiazloe(m.p. 248≦̸C).

    PROCESS FOR PREPARATION OF SUBSTITUTED PYRIDAZON DERIVATIVES
    8.
    发明授权
    PROCESS FOR PREPARATION OF SUBSTITUTED PYRIDAZON DERIVATIVES 失效

    公开(公告)号：KR820001237B1

    公开(公告)日：1982-07-07

    申请号：KR790000582

    申请日：1979-02-24

    Applicant: BASF AG

    Inventor： ROT W ,  OESER H ,  HANSEN H ,  BUIERCHER B

    IPC: C07D237/14

    Abstract: Title compds. [I; R,R1 = lower alkoxy, R2 = difluoromethyl, fluoro, chloro, X-R4 (X = O, S; R4 = C1-3 haloalkyl); R3 = H, fluoro: A = halogen, alkoxy; Hal = halogen; B = Na, K , useful as active component of herbicide, were prepd. by reaction of pyridazone derivs.(II) and alcoholate(III) in the presence of org. liquid. Thus, 30 wt% sodium methylate soln. 7.2 parts was condensed under the vacuum, made in slurry with toluene 250 parts, 1-(3-trifluoromethylthiophenyl)-4-methoxy-5-chloropyridazone-6 was added, refluxed 2 hr, filtered, recrystallized to give 1-(3-trifluoromethylthiophenyl)-4,5-dimethoxypyridazone-6 5.9 parts.

    PROCESS FOR PREPARATION OF BENZYL PYRIMIDINES
    10.
    发明授权
    PROCESS FOR PREPARATION OF BENZYL PYRIMIDINES 失效

    公开(公告)号：KR820001338B1

    公开(公告)日：1982-07-28

    申请号：KR780002075

    申请日：1978-07-05

    Applicant: BASF AG

    Inventor： GUTSCHE K ,  KOHLMANN W ,  SCHARWAECHTER P

    IPC: A61K31/505 ,  C07D239/48

    Abstract: Benzyl pyrimidines(I; R1, R2,R3 = H, methyl, methoxy, Cl; R4 = C1-6 alkoxy, aryloxy, cyclohexaory or benzyloxy substituted methyl, phenyl, chlorophenyl, hydroxyl, C1-2 alkoxy, dialkylamino, 3-alkylisoxazolyl-5-methyl; Hal is halogen), having antibiotic activity, were prepd. by reacting compd. (II) with compd. (III). Thus, 2,4-diamino-5-(3,4,5- trimethoxy benzyl)-pyrimidine 5.8 g was dissolved in pyridine 60 ml at 60≦̸C, chlorodimethyl ether 3.0 ml was added and then pyridine was eliminated by distillation under reduced pressure. The residue was recrystallized with ethanol 250ml to give 2-methoxymethylamino-4-amino-5-(3,4,5-trimethoxylbanzyl)-pyrimidine HCl 15.5 g (m.p. 227≦̸C).

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