Pesticidal tautomers of 3-aryl-pyrrolidine-2,4-diones and use thereas
    2.
    发明授权
    Pesticidal tautomers of 3-aryl-pyrrolidine-2,4-diones and use thereas 失效
    3-芳基 - 吡咯烷-2,4-二酮的杀虫互变异构体

    公开(公告)号:US5045560A

    公开(公告)日:1991-09-03

    申请号:US460208

    申请日:1990-01-02

    摘要: Insecticidal, acaricidal, herbicidal and antimycotic 3-aryl-pyrrolidine-2,4-diones of the formula ##STR1## in which X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents a number from 0-3,R represents hydrogen or represents the groups --CO--R.sup.1 or --CO--O--R.sup.2, in whichR.sup.1 represents alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl or cycloalkyl which can be interrupted by hetero atoms, each of which radicals is optionally substituted by halogen, or represents optionally substituted phenyl, optionally substituted phenylalkyl, substituted hetaryl, substituted phenoxyalkyl or substituted hetaryloxyalkyl, or represents optionally substituted phenyl, optionally substituted phenylalkyl, substituted hetaryl, substituted phenoxyalkyl and substituted hetaryloxyalkyl, andR.sup.2 represents alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or optionally substituted phenyl or cycloalkyl, each of which radicals is optionally substituted by halogen,A represents alkyl, alkenyl, alkinyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, or cycloalkyl which is optionally interrupted by a hetero atom, each of which radicals is optionally substituted by halogen, or represents arylalkyl which is optionally substituted by halogen, alkyl, halogenoalkyl, alkoxy or nitro,B and C* independently of one another represent hydrogen, alkyl or alkoxyalkyl.

    摘要翻译: 式(I)的杀虫,杀螨,除草和抗真菌性3-芳基 - 吡咯烷-2,4-二酮其中X代表烷基,卤素或烷氧基,Y代表氢,烷基,卤素,烷氧基或卤代烷基,Z 表示烷基,卤素或烷氧基,n表示0-3的数,R表示氢或表示基团-CO-R1或-CO-O-R2,其中R1表示烷基,烯基,烷氧基烷基,烷硫基烷基,聚烷氧基烷基或环烷基 任何取代的苯基,取代的杂芳基,取代的苯氧基烷基或取代的噻唑烷基,或代表任意取代的苯基,任选取代的苯基烷基,取代的杂芳基, 取代的苯氧基烷基和取代的硫代氧基烷基,R 2表示烷基,链烯基,烷氧基烷基,聚烷氧基烷基或任选取代的苯基或环烷基,各w 任选被卤素取代的基团,A代表烷基,链烯基,炔基,烷氧基烷基,聚烷氧基烷基,烷硫基烷基或环烷基,任选被杂原子间隔,每个基团任选被卤素取代,或表示任选取代的芳基烷基 卤素,烷基,卤代烷基,烷氧基或硝基,B和C *彼此独立地表示氢,烷基或烷氧基烷基。

    Preparation of fluorinated nitroalkanes
    8.
    发明授权
    Preparation of fluorinated nitroalkanes 失效
    氟化硝基烷烃的制备

    公开(公告)号:US4533776A

    公开(公告)日:1985-08-06

    申请号:US575649

    申请日:1984-02-01

    摘要: In the preparation of an .alpha.-fluorinated nitroalkane of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and individually represent hydrogen, fluorine, chlorine, bromine, alkyl, halogenoalkyl or cycloalkyl, orR.sup.1 and R.sup.3 have the meaning indicated andR.sup.2 and R.sup.4 together represent an alkylene group having 3-6 carbon atoms,by conjugated nitrofluorination of the corresponding olefin of the formula ##STR2## the improvement which comprises employing about 1.1 mols of hydrogen fluoride and 1 to 2 mols of nitric acid per mol of olefin and carrying out the reaction in the presence of an agent which binds water, e.g. chlorosulphonic acid, fluorosulphonic acid, sulphur trioxide, sulphur dioxide, thionyl chloride, thionyl fluoride, sulfuryl chloride or sulfuryl fluoride. The end products, some of which are known, are useful as intermediates in synthesizing herbicides.

    摘要翻译: 在制备其中R 1,R 2,R 3和R 4相同或不同并且各自表示氢,氟,氯,溴,烷基,卤代烷基或环烷基的式(Ia)的α-氟化硝基烷烃或R1和R3具有 所表示的含义,R2和R4一起表示具有3-6个碳原子的亚烷基,通过共轭硝基氟化相应的式“烯烃”烯烃,其改进包括使用约1.1摩尔氟化氢和1至2摩尔硝酸 酸/每摩尔烯烃,并在结合水的试剂存在下进行反应,例如 氯磺酸,氟磺酸,三氧化硫,二氧化硫,亚硫酰氯,亚硫酰氟,磺酰氯或硫酰氟。 其中一些已知的最终产物可用作合成除草剂的中间体。