Imidazo[1,2-a]pyrimidine sulfonic acids and acid halides
    22.
    发明授权
    Imidazo[1,2-a]pyrimidine sulfonic acids and acid halides 失效
    咪唑并[1,2-a]嘧啶磺酸和酰卤

    公开(公告)号:US4731446A

    公开(公告)日:1988-03-15

    申请号:US45908

    申请日:1987-05-01

    CPC分类号: C07D487/04 A01N43/90

    摘要: Novel substituted imidazolo[1,2-a]pyrimidine-2-sulfonanilides are prepared from novel substituted imidazolo[1,2-a]pyrimidine-2-sulfonic acids by conversion to the corresponding sulfonyl halides and condensation with substituted anilines and by other methods. N-(2,6-difluorophenyl)-3-chloro-4,6-dimethylimidazolo[1,2-a]pyrimidine-2-sulfonamide is typical of the compounds prepared. The compounds are useful general and selective pre- and post-emergence herbicides.

    摘要翻译: 通过转化为相应的磺酰卤并与取代的苯胺缩合并通过其它方法从新的取代的咪唑并[1,2-a]嘧啶-2-磺酸制备新的取代咪唑并[1,2-a]嘧啶-2-磺酰苯胺 。 N-(2,6-二氟苯基)-3-氯-4,6-二甲基咪唑并[1,2-a]嘧啶-2-磺酰胺是制备的化合物的典型。 这些化合物是有用的一般和选择性芽前和芽后除草剂。

    Pyrazolo[1,5-a]pyrimidine-2-sulfide compounds
    26.
    发明授权
    Pyrazolo[1,5-a]pyrimidine-2-sulfide compounds 失效
    吡唑并[1,5-a]嘧啶-2-硫化物

    公开(公告)号:US5021591A

    公开(公告)日:1991-06-04

    申请号:US468486

    申请日:1990-01-23

    摘要: Novel substituted pyrazolo[1,5-a]pyrimidine-2-sulfonamide compounds, such as 3-cyano-5,7-dimethyl-N-2,6-dichlorophenylpyrazolo[1,5-a]pyrimidine-2-sulfonamide, were prepared by the condensation of novel substituted 2-benzylthiopyrazolo[1,5-a]pyrimidine compounds, such as 2-benzylthio-5,7-dimethylpyrazolo[1,5-a]pyrimidine, and substituted anilines and found to be useful as herbicides.

    摘要翻译: 新颖的取代的吡唑并[1,5-a]嘧啶-2-磺酰胺化合物如3-氰基-5,7-二甲基-N-2,6-二氯苯基吡唑并[1,5-a]嘧啶-2-磺酰胺, 通过新的取代的2-苄硫基吡唑并[1,5-a]嘧啶化合物如2-苄硫基-5,7-二甲基吡唑并[1,5-a]嘧啶和取代的苯胺的缩合制备,发现可用于 除草剂。

    5-fluoromethyl-1,2,4-triazolo[1,5,-a]-pyrimidine-2-sulfonamides
    27.
    发明授权
    5-fluoromethyl-1,2,4-triazolo[1,5,-a]-pyrimidine-2-sulfonamides 失效
    5-氟甲基-1,2,4-三唑并[1,5 -a] - 嘧啶-2-磺酰胺

    公开(公告)号:US4979981A

    公开(公告)日:1990-12-25

    申请号:US429511

    申请日:1989-10-30

    IPC分类号: A01N43/90 C07D487/04

    CPC分类号: C07D487/04 A01N43/90

    摘要: N-(Substituted-phenyl)-5-fluoromethyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides are prepared from 2-benzylthio-5-fluoromethyl-1,2,4-triazolo[1,5-a]-pyrimidines and found to be herbicidal. The compounds, illustrated by 5-fluoromethyl-7-methoxy-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide, are degradable in the soil.

    摘要翻译: N-(取代的苯基)-5-氟甲基-1,2,4-三唑并[1,5-a]嘧啶-2-磺酰胺由2-苄硫基-5-氟甲基-1,2,4-三唑并[ 1,5-a] - 嘧啶并被发现是除草剂。 由5-氟甲基-7-甲氧基 - (2,6-二氯-3-甲基苯基)-1,2,4-三唑并[1,5-a]嘧啶-2-磺酰胺说明的化合物在土壤中是可降解的 。

    5-Fluoromethyl-1,2,4-triazolo(1,5-A)-pyrimidines
    28.
    发明授权
    5-Fluoromethyl-1,2,4-triazolo(1,5-A)-pyrimidines 失效
    5-氟甲基-1,2,4-三唑并(1,5-A) - 嘧啶

    公开(公告)号:US4904301A

    公开(公告)日:1990-02-27

    申请号:US183570

    申请日:1988-04-19

    IPC分类号: A01N43/90 C07D487/04

    CPC分类号: C07D487/04 A01N43/90

    摘要: N-(Substituted-phenyl)-5-fluoromethyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides are prepared from 2-benzylthio-5-fluoromethyl-1,2,4-traizolo[1,5-a]pyrimidines and found to to be herbicidal. The compounds, illustrated by 5-fluoromethyl-7-methoxy-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide, are degradable in the soil.

    摘要翻译: N-(取代的苯基)-5-氟甲基-1,2,4-三唑并[1,5-a]嘧啶-2-磺酰胺由2-苄硫基-5-氟甲基-1,2,4-三唑并[ 1,5-a]嘧啶并发现是除草剂。 由5-氟甲基-7-甲氧基 - (2,6-二氯-3-甲基苯基)-1,2,4-三唑并[1,5-a]嘧啶-2-磺酰胺说明的化合物在土壤中是可降解的 。

    Selective preparation of isomers and enantiomers of cyclopropane
carboxylic acids
    30.
    发明授权
    Selective preparation of isomers and enantiomers of cyclopropane carboxylic acids 失效
    选择性制备环丙烷羧酸的异构体和对映异构体

    公开(公告)号:US4479005A

    公开(公告)日:1984-10-23

    申请号:US450500

    申请日:1982-12-16

    IPC分类号: C07D263/26 C07C69/74

    CPC分类号: C07D263/26

    摘要: A process has been discovered for selective preparation of isomers and enantiomers of 2,2-dimethyl-3-(2,2-dihalovinyl)cyclopropane carboxylic acids. In this process an adduct of an alkyl 3,3-dimethyl-4-pentenoate and a substituted 2-oxazolidone is reacted with a substituted dihalomethane compound. The resulting compound is cyclized, dehydrohalogenated and hydrolyzed to yield the desired product. These cyclopropane carboxylic acids are useful precursors for pyrethroid insecticides.

    摘要翻译: 已经发现了选择性制备2,2-二甲基-3-(2,2-二卤代乙烯基)环丙烷羧酸的异构体和对映异构体的方法。 在该方法中,3,3-二甲基-4-戊烯酸烷基酯和取代的2-恶唑烷酮的加合物与取代的二卤甲烷化合物反应。 将所得化合物环化,脱卤化氢并水解,得到所需产物。 这些环丙烷羧酸是拟除虫菊酯杀虫剂的有用前体。