PROCESS FOR PREPARATION OF PHENOXY-PHENOXY-VALERIC ACID DERIVATIVES

    公开(公告)号:KR820000880B1

    公开(公告)日:1982-05-20

    申请号:KR770001958

    申请日:1977-08-23

    Applicant: HOECHST AG

    Abstract: Title compds. I (R1 = halo, CF3, C1-4 alkyl; Cat = cation of org. or inorg. base; n = 1-3) useful as herbicides against grassy weeds were prepd. by the reaction of compd. II with γ-valerolactone (III) in the presence of base. Thus, 4-(2',4'-dichlorophenoxy)-phenol was dissolved in anhydrous EtOH and Na added, distilled, then γ-valerolactone was added, heated to 210≦̸C for 24 hr, acidified, and recrystallized with hexane to give 90% 4-≮4'-(2",4"- dichlorophenoxy)-phenoxy≉-valeric acid (m.p. 88≦̸C).

    2.
    发明专利
    未知

    公开(公告)号:DK318880A

    公开(公告)日:1981-01-26

    申请号:DK318880

    申请日:1980-07-24

    Applicant: HOECHST AG

    Abstract: The present invention relates to new thioglycolic acid anilides of the formula I (I) R1 denotes (C1-C4)alkyl, halogen, (C1-C3)alkylthio, (C1-C4)alkoxy or (C3-C4)alkenyl, R2 denotes hydrogen, (C1-C4) alkyl or halogen, R3, R4 and R6 denote hydrogen or methyl, R5 denotes hydroxy, (C1-C4)alkoxy, (C1-C3)alkylthio, (C1-C2)alkoxy -(C1-C2)alkoxy, amino, (C1-C2)alkylamino or di(C1-C2)alkylamino, Y represents oxygen or sulfur, R7 represents optionally substituted (C1-C6)alkyl, (C3-C6)cycloalkyl, (C3-C4)alkenyl or (C3-C4)alkinyl, R8 represents hydrogen or (C1-C4)alkyl, R9 denotes optionally substituted (C1-C4)alkyl, (C3-C4)alkenyl, furfuryl, tetrahydrofurfuryl, with the proviso that if Y=S, the radicals R8 and R9 do not both denote (C1-C4)alkyl, R10 denotes -CN, optionally substituted (C1-C4)alkyl, allyl or furfuryl, R11 denotes hydrogen, optionally substituted (C1-C4)alkyl, (C2-C4)alkenyl, with the proviso that R11 does not denote (C1-C4) alkyl or halogen-substituted (C1-C4)alkyl, if R denotes to processes for their manufacture and to their use as pesticidal compositions.

    8.
    发明专利
    未知

    公开(公告)号:BR8004681A

    公开(公告)日:1981-03-04

    申请号:BR8004681

    申请日:1980-07-25

    Applicant: HOECHST AG

    Abstract: The present invention relates to new thioglycolic acid anilides of the formula I (I) R1 denotes (C1-C4)alkyl, halogen, (C1-C3)alkylthio, (C1-C4)alkoxy or (C3-C4)alkenyl, R2 denotes hydrogen, (C1-C4) alkyl or halogen, R3, R4 and R6 denote hydrogen or methyl, R5 denotes hydroxy, (C1-C4)alkoxy, (C1-C3)alkylthio, (C1-C2)alkoxy -(C1-C2)alkoxy, amino, (C1-C2)alkylamino or di(C1-C2)alkylamino, Y represents oxygen or sulfur, R7 represents optionally substituted (C1-C6)alkyl, (C3-C6)cycloalkyl, (C3-C4)alkenyl or (C3-C4)alkinyl, R8 represents hydrogen or (C1-C4)alkyl, R9 denotes optionally substituted (C1-C4)alkyl, (C3-C4)alkenyl, furfuryl, tetrahydrofurfuryl, with the proviso that if Y=S, the radicals R8 and R9 do not both denote (C1-C4)alkyl, R10 denotes -CN, optionally substituted (C1-C4)alkyl, allyl or furfuryl, R11 denotes hydrogen, optionally substituted (C1-C4)alkyl, (C2-C4)alkenyl, with the proviso that R11 does not denote (C1-C4) alkyl or halogen-substituted (C1-C4)alkyl, if R denotes to processes for their manufacture and to their use as pesticidal compositions.

Patent Agency Ranking