4.
    发明专利
    未知

    公开(公告)号:CH597210A5

    公开(公告)日:1978-03-31

    申请号:CH1521374

    申请日:1974-11-14

    Applicant: BASF AG

    Abstract: 2,1,3-Benzothiadiazin-4-one-2,2-dioxides are produced by the reaction of esters of anthranilic acid with a sulfamic acid halide in the presence of a solvent and a base at a temperature of from 20 DEG to 100 DEG C. The products are starting materials for the production of dyes and plant protection agents.

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