Sulfur-containing 4-hydroxycoumarins and their salts
    9.
    发明授权
    Sulfur-containing 4-hydroxycoumarins and their salts 失效
    含硫的4-羟基喹啉及其盐

    公开(公告)号:US3810922A

    公开(公告)日:1974-05-14

    申请号:US31641972

    申请日:1972-12-18

    申请人: DOW CHEMICAL CO

    发明人: DUNBAR J

    CPC分类号: C07D311/50 C07D311/12

    摘要: INVENTION CONCERNS SULFUR-CONTAINING 4-HYDROXY-COUMARINS AND THEIR ALKALI METAL SALTS OF THE FORMULA

    3-(R-O-S(=O)N-),4-(M-O-)-2H-CHROMEN-2-ONE

    WHEREIN M IS HYDROGEN OR ALKALI METAL, R IS ALKYL, W-(CYCLOHEXYL)-N-LOWER ALKYL, BENZYL, HALOBENZYL, LOWER ALKYLBENZYL, (TRIFLUOROMETHYL)BENZYL, NITROBENZYL, ALLYL, HALOALLYL, PHENYL-LOWER ALKYL OR NAPHTHYL-LOWER ALKYL, AND N IS 0, 1 OR 2. THE COMPOUNDS ARE PREPARED BY REACTING 4-HYDROXYCOUMARIN WITH A THIOSULFONATE IN AN ORGANIC MEDIUM AND RECOVERING THE PRODUCT. THE COMPOUNDS ARE USEFUL AS PLANT GROWTH STUNTERS AND AS ANTIMICROBIAL AGENTS.