3-Haloalkoxy-4-nitro-2'-chloro-4'-trifluoromethyldiphenyl ethers and
herbicidal use thereof
    272.
    发明授权
    3-Haloalkoxy-4-nitro-2'-chloro-4'-trifluoromethyldiphenyl ethers and herbicidal use thereof 失效
    3-卤代烷氧基-4-硝基-2'-氯-4'-三氟甲基二苯醚及其除草用途

    公开(公告)号:US4417919A

    公开(公告)日:1983-11-29

    申请号:US347400

    申请日:1982-02-10

    Applicant: Otto Rohr

    Inventor: Otto Rohr

    CPC classification number: C07C205/38 A01N37/00

    Abstract: The invention relates to novel 3-haloalkoxy-4-nitro-2'-chloro-4'-trifluoromethyl-diphenyl ethers with herbicidal properties. These compounds have good selectivity in different crops of useful plants, e.g. cereals, rice, cotton and, in particular, soybeans and maize. The novel compounds have the formula I ##STR1## wherein R is difluoromethyl or 2-chloro-1,1,2-trifluoroethyl.

    Abstract translation: 本发明涉及具有除草性质的新型3-卤代烷氧基-4-硝基-2'-氯-4'-三氟甲基 - 二苯基醚。 这些化合物在不同作物的有用植物中具有良好的选择性,例如。 谷物,水稻,棉花,特别是大豆和玉米。 新化合物具有式I(I)其中R是二氟甲基或2-氯-1,1,2-三氟乙基。

    Fluoroalkoxysulfur fluorides
    275.
    发明授权
    Fluoroalkoxysulfur fluorides 失效
    氟烷氧基硫氟化物

    公开(公告)号:US4311651A

    公开(公告)日:1982-01-19

    申请号:US148209

    申请日:1980-05-09

    CPC classification number: C07C29/70 C07C205/11 C07C381/00 C07D243/24

    Abstract: Fluoroalkoxysulfur fluorides of the formula ##STR1## wherein R is H, CH.sub.3, CF.sub.3, or C.sub.2 F.sub.5, and n is 1 or 2; their preparation by reaction of lithium fluoroalkoxides with sulfur tetrafluoride; their use as fluorinating agents to replace OH groups in organic molecules with F; and halocarbon solutions of lithium fluoroalkoxides.

    Abstract translation: 其中R是H,CH 3,CF 3或C 2 F 5,且n是1或2的式(I)的氟烷氧基硫氟化物; 它们通过氟代氟代锂与四氟化硫的反应制备; 它们用作氟化剂以用F代替有机分子中的OH基团; 和氟代烷氧基锂的卤代烃溶液。

    Method for the production of hexanitrostilbene
    279.
    发明授权
    Method for the production of hexanitrostilbene 失效
    生产己腈二萜烯的方法

    公开(公告)号:US4199532A

    公开(公告)日:1980-04-22

    申请号:US966674

    申请日:1978-12-05

    Applicant: Isaac Angres

    Inventor: Isaac Angres

    CPC classification number: C07C201/12

    Abstract: A method of preparing 2,2',4,4',6,6'-hexanitrostilbene from 2,4,6-trinitrnzyl chloride and hydroxyl ions using an organic solvent-water two phase system and a phase transfer catalyst.

    Abstract translation: 使用有机溶剂 - 水两相体系和相转移催化剂从2,4,6-三硝基苄基氯和羟基离子制备2,2',4,4',6,6'-己二芪的方法。

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