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    11.
    发明专利
    未知

    公开(公告)号：CH597368A5

    公开(公告)日：1978-03-31

    申请号：CH931275

    申请日：1975-07-16

    Applicant: BASF AG

    Inventor： HAUFE JUERGEN DR ,  RENTZEA COSTIN DR ,  DEGNER DIETER DR

    IPC: C07D215/20 ,  C07C69/157 ,  C07C69/76 ,  C07D213/69 ,  C07D215/32 ,  C07D307/20 ,  C07D307/78 ,  C07D307/83 ,  C25B3/23 ,  C25B3/29 ,  C25B3/02 ,  C07C69/02

    Abstract: 1507920 Esters BASF AG 18 July 1975 [19 July 1974] 30186/75 Heading C2C [Also in Division C7] In electrochemical manufacture of an aromatic or heterocyclic ester by anodic acyloxylation of an aromatic or heterocyclic compound with an alkanoic acid, electrolysis is carried out in the presence of a conducting salt where R 1 , R 2 , and R 3 are the same or different and are H or alkyl, at least one being alkyl, and R 4 is H or C 1 -C 6 alkyl. The aromatic compound may be a benzene derivative, a naphthalene, anthracene, phenanthrene, acenaphthene, acenaphthylene, tetracene, perylene or chrysene; the heterocyclic compound may be quinoline or benzofuran; substituent groups on the aromatics may be alkyl, aryl, alkoxy, aryloxy, halogen, acyloxy, acylamino, cyano, nitro, or sulphonate; examples are given. Alkanoic acids mentioned are formic, acetic, propionic, butyric, valeric, isovaleric, and caproic; said salt may be made by reacting a suitable amine with such acid and may be trimethylammonium formate, acetate or propionate; triethyl ammonium formate, acetate or propionate, tri-n-butylammonium acetate, dimethylammonium formate, acetate or propionate, or diethylammonium acetate. The anode may be graphite, PbO 2 , Pt or Au, and the cathode graphite, Fe, steel or Pb; the electrode spacing may be 0À25-2 mm. and the C.D. 0À1- 30 A/dm. 2 ; a charge of 0À4-1À5 F/mole causes monoacyloxylation, and >2F/mole a higher degree. The electrolyte may comprise 5-60 wt. per cent aromatic or heterocyclic compound, 5-70% alkanoic acid, 1-20% of the salt and 0-50% of an inert co-solvent; everything apart from the product may be removed afterwards by distillation.

    13.
    发明专利
    未知

    公开(公告)号：DE3862329D1

    公开(公告)日：1991-05-16

    申请号：DE3862329

    申请日：1988-03-05

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR ,  STECKHAN EBERHARD PROF DR

    IPC: C25B3/23 ,  C25B3/02

    Abstract: Process for the preparation of methoxyacetaldehyde dialkyl acetals by electrooxidation of 1-methoxy-2-alkoxyethane in the presence of alkanols and certain triarylamine compounds.

    14.
    发明专利
    未知

    公开(公告)号：DE3762633D1

    公开(公告)日：1990-06-13

    申请号：DE3762633

    申请日：1987-02-25

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR ,  HANNEBAUM HEINZ

    IPC: C07C269/00 ,  C07C271/20 ,  C25B3/23 ,  C25B3/02

    Abstract: Biscarbamates, including novel one, of the general formula I where R is alkyl of 1 to 8 carbon atoms and X is a hydrocarbon radical of 2 to 60 carbon atoms in which one or more carbon atoms may be replaced by hetero atoms and which may contain halogen atoms or ester, carbonyl or nitrile groups are prepared by electrochemically oxidizing formamides of the general formula II in the presence of an alkanol of the formula ROH and of an ionic halide.

    15.
    发明专利
    未知

    公开(公告)号：DE3730777A1

    公开(公告)日：1989-03-23

    申请号：DE3730777

    申请日：1987-09-12

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR

    IPC: C07D233/32 ,  C07D233/34 ,  C07D263/22 ,  C25B3/23

    Abstract: Imidazolidinones and oxazolidinones of the formula in which A represents -O- or -NH- and R , R , R and R denote hydrogen atoms, alkyl groups or aryl groups, are prepared by electrochemical oxidation of formamides of the formula in which X represents -OH or -NHCHO, in the presence of an ionic halide.

    18.
    发明专利
    未知

    公开(公告)号：DE3403789A1

    公开(公告)日：1985-08-08

    申请号：DE3403789

    申请日：1984-02-03

    Applicant: BASF AG

    Inventor： DEGNER DIETER DR ,  ROSKE ECKHARD

    IPC: C25B3/23 ,  C25B3/02

    Abstract: 1. A process for the preparation of a benzaldehyde dialkylacetal of the general formula see diagramm : EP0152801,P4,F3 where R is methyl or ethyl, wherein a benzyl alkylether of the general formula see diagramm : EP0152801,P4,F4 is oxidized electrochemically in the absence of toluene and in the presence of an alcohol of the formula ROH and of a base electrolyte.

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