Insecticidal compounds
    12.
    发明专利

    公开(公告)号:GB2520098A

    公开(公告)日:2015-05-13

    申请号:GB201410899

    申请日:2014-06-19

    Abstract: The present invention relates to bis-amide derivatives of formula (I): wherein Q1 is a saturated 4-6-membered heterocyclic ring comprising 1-2 sulfur atoms in addition to the carbon atoms, preferably a thietan-3-yl, dithiolan-4-yl or tetrahydrothiopyran-4-yl group, which may be unsubstituted or substituted on a sulphur atom with one or more substituents selected from =O, =N-Z and =NCZ1Z2; Z is H or cyano; Z1 and Z2 are cyano or together form a C(O)-O-CH2-C(O)- or C(O)-S-CH2-C(O)- bridge; Y1 and Y5 are Cl, Br, I, C1-4alkyl, C1-4alkoxy, C1-4haloalkyl, C1-4haloalkoxy, C1-4alkylthio, C1-4alkylsulfinyl, C1-4alkylsulfonyl or C1-4alkoxy- C1-4alkyl; Y3 is C1-4haloalkyl; Xa is H, methoxy or halogen; Xb is H, halogen or cyano; R1 and R2 are H or substituents; or an agronomically acceptable salt thereof may be useful as an insecticide, in particular insecticidal, acaricidal, nematicidal or molluscicidal activity. Methods of preparing these compounds, including intermediates, and insecticidal, acaricidal, nematicidal or molluscicidal compositions comprising them are also disclosed.

    Process for the preparation of ortho amino-substituted aromatic carboxylic acids

    公开(公告)号:GB2463736A

    公开(公告)日:2010-03-31

    申请号:GB0817909

    申请日:2008-09-30

    Abstract: The invention relates to the preparation of an insecticide of formula (I), wherein X is a bivalent group selected from X1-X8; R1is C1-C4alkyl or halogen; and R2and R3are hydrogen, C1-C4alkyl, C1-C4alkoxy, cyano, nitro or halogen. The process is depicted below and comprises (a) reacting a pyrroline dione of formula (II) with a source of hydroxylamine, preferably hydroxylamine hydrochloride, to give a compound of formula (III); (b) converting the intermediate (III) into the ortho amino-substituted aromatic cyano compound of formula (IV) by heating; and (c) hydrolysing the nitrile group of precursor (IV) to obtain the product of formula (I). A particular example is the synthesis of 6-amino-5-methyl-1H-indazole-7-carboxylic acid. The preparation of 6-amino-5-methyl-1H-indazole-7-carboxamide is also outlined. Compounds of formula (IV) are claimed separately.

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