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    3.
    发明专利
    未知

    公开(公告)号：DE3538141A1

    公开(公告)日：1987-04-30

    申请号：DE3538141

    申请日：1985-10-26

    Applicant: HOECHST AG

    Inventor： WELLBROCK WERNER DR ,  STUDENEER ADOLF DR

    IPC: C07C309/42 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C303/08 ,  C07C309/28 ,  C07C143/38 ,  C07C143/44 ,  C07C139/00

    Abstract: A process for the continuous production of C7-Cl2-acyloxybenzenesulfonic acids, wherein phenol and a sulfonating reagent, diluted with an aliphatic C7-Cl2-carboxylic acid, is charged to the top of a continuous-flow reactor heated to 80 DEG -100 DEG and the mixture of phenolsulfonic acid and the aliphatic carboxylic acid, leaving the bottom end of this continuous-flow reactor, and a chlorinating reagent are charged to the top of a second continuous-flow reactor, nitrogen being passed in counter-current through both continuous-flow reactors.

    Process for the preparation of phenyltriazoles
    8.
    发明专利
    Process for the preparation of phenyltriazoles 未知

    公开(公告)号：DE3114349A1

    公开(公告)日：1983-01-27

    申请号：DE3114349

    申请日：1981-04-09

    Applicant: HOECHST AG

    Inventor： STUDENEER ADOLF DR

    IPC: C07D249/12

    Abstract: Preparation of optionally substituted 1-phenyl-3-oxy-1,2,4-triazoles by reacting suitable phenylsemicarbazides with orthoformates at 50 to 150 DEG C in an inert solvent in the presence of inorganic or organic acids or Lewis acids.

    Pesticidal intermediate 3-substd.-furo-(3,2-c)pyridine derivs. - prepd. e.g. by reacting 4-hydroxy-nicotinic acid ester(s) with haloacetic acid derivs.
    9.
    发明专利
    Pesticidal intermediate 3-substd.-furo-(3,2-c)pyridine derivs. - prepd. e.g. by reacting 4-hydroxy-nicotinic acid ester(s) with haloacetic acid derivs. 未知

    公开(公告)号：DE2725361A1

    公开(公告)日：1978-12-14

    申请号：DE2725361

    申请日：1977-06-04

    Applicant: HOECHST AG

    Inventor： STUDENEER ADOLF DR ,  SALBECK GERHARD DR ,  KUEBEL BOERRIES DR

    IPC: C07D213/80 ,  C07D491/04 ,  C07D491/048

    Abstract: Furo(3,2-C)pyridine derivs. of formula (Ia) and their 3-oxoltautomers of formula (Ib) and their salts with strong acids or bases are new. In (I), R1 is 1-3C alkyl, 1-3C alkoxy or phenyl; R2 is CH3; R3 is H, Cl or Br; R4 is H, 1-6C alkyl, 5-7C cycloalkyl, CN, -CO-R5, -COOR6, -CONR7R8, p-NO2,-C6H4-, or benzyl opt. substd. (pref. mono- or disubstd.) in the ring by 1-4C alkyl, halogen, 1-3C alkoxy, methylenedioxy and/or di(1-4C alkyl)amino; R5 is CH3, or phenyl opt. substd. by NO2 and/or Cl; R6 is 1-4C alkyl; R7 is H or 1-3C alkyl; and R8 is H 1-3C alkyl, or phenyl opt. substd. by halogen, CF3 and/or CH3; or R7+R8 is 4-5C methylene chain opt. interrupted by O, S, NH or N-(1-4C alkyl). (I) are useful as intermediates, e.g. for plant protection agents (esp. phosphorus esters obtd. by reacting alkali salts of (Ia, b) with phosphorus halides such as phosphoric acid diester halides).

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