51.
    发明专利
    未知

    公开(公告)号:DE3711269A1

    公开(公告)日:1988-10-13

    申请号:DE3711269

    申请日:1987-04-03

    Applicant: BASF AG

    Abstract: 3,4-dihydro-2H-pyrans of the formula I (I) where R1 is C4-C20-alkyl, C4-C20-alkoxyalkyl, aryl or C7-C20-arylalkyl, or is aryl or C7-C20-arylalkyl which bears from one to three substituents selected from the group consisting of halogen, C1-C8-alkyl, C1-C8-haloalkyl, C1-C8-alkoxy or C1-C8-haloalkoxy, R2 is hydrogen or C1-C4-alkyl, R3 is aryl, or aryl bearing from one to three substituents selected from the group consisting of halogen, C1-C8-alkyl, C1-C8-haloalkyl, C1-C8-alkoxy or C1-C8-haloalkoxy, or the radical where R4, R5 and R6 are hydrogen or C1-C4-alkyl, R7 is phenyl or benzoyl, or phenyl or benzoyl bearing from one to three substituents selected from the group consisting of halogen, C1-C8-alkyl, C1-C8-haloalkyl, C1-C8-alkoxy and C1-C8-haloalkoxy, or a five- or six-membered heterocycle containing one or two oxygen atoms and which is either unsubstituted or substituted by one to three C1-C8-alkyl groups or one C3-C6-spirocycloalkyl, and l, m and n are 0 or 1, and their use for combating pests.

Patent Agency Ranking