4.
    发明专利
    未知

    公开(公告)号:BR8200418A

    公开(公告)日:1982-11-30

    申请号:BR8200418

    申请日:1982-01-26

    Applicant: BASF AG

    Abstract: Anthranilic acid amides are prepared by mixing phthalamic acid with a caustic alkali solution, a catalyst and a hypohalite, allowing the mixture to stand for from 1 to 1,000 seconds, then introducing the amine and thereafter addig acid until the pH of the mixture is from 6 to 8. The anthranilic acid amides obtainable by the process of the invention are valuable starting materials for the preparation of dyes, scents and pesticides.

    5.
    发明专利
    未知

    公开(公告)号:DE59005479D1

    公开(公告)日:1994-05-26

    申请号:DE59005479

    申请日:1990-11-28

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP90/02036 Sec. 371 Date Feb. 27, 1992 Sec. 102(e) Date Feb. 27, 1992 PCT Filed Nov. 28, 1990 PCT Pub. No. WO91/08264 PCT Pub. Date Jun. 13, 1991.Quinophthalone derivatives of the formula I I where the group A completes substituted or unsubstituted heteroaromatic rings and the group B completes a substituted or unsubstituted aromatic ring, are prepared by reacting a methyl-substituted heterocyclic compound of the formula II II with an anhydride of an aromatic dicarboxylic acid of the formula III III or the corresponding free dicarboxylic acid (IIIa) in the presence of an acid and of an organic solvent, the organic solvent used being an alkyl benzoate.

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