Process for preparing gamma-cyhalothrin

    公开(公告)号:US20060148892A1

    公开(公告)日:2006-07-06

    申请号:US10546138

    申请日:2004-02-23

    IPC分类号: A01N37/34 C07C253/30

    摘要: A process for the preparation of gamma-cyhalothrin comprising steps of a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride and b) esterifying 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride with the (S)-cyanohydrin of 3-phenoxy benzaldehyde (III).

    Conversion of pyrethroid isomers to more active species
    3.
    发明授权
    Conversion of pyrethroid isomers to more active species 失效
    将拟除虫菊酯异构体转化为更多的活性物质

    公开(公告)号:US5128497A

    公开(公告)日:1992-07-07

    申请号:US460445

    申请日:1990-01-03

    申请人: John W. Ager

    发明人: John W. Ager

    IPC分类号: C07C255/39

    CPC分类号: C07C255/39

    摘要: Crystalline pyrethroid isomers or enantiomer pairs are converted to more pesticidally active isomers by contacting a hydrocarbon slurry of the starting isomers with an epimerization agent selected from the group consisting of 1,1,3,3-tetramethylguanidine and 1,8-diazabicyclo[5.4.0]undec-7-ene, agitating the slurry while maintaining a temperature effective for conversion, and recovering the resulting isomers. The process typically is effective for enriching cypermethrin, and cyfluthrin.

    摘要翻译: 通过使起始异构体的烃浆料与选自1,1,3,3-四甲基胍和1,8-二氮杂双环[5.4.1]的差向异构化剂接触,将结晶拟除虫菊酯异构体或对映异构体对转化为更具杀虫活性的异构体。 0]十一碳-7-烯,在保持有效转化温度的同时搅拌浆料,并回收得到的异构体。 该方法通常对富集氯氰菊酯和氟氯氰菊酯有效。

    Cyanohydrin ethers and esters as high-sensitivity enzyme substrates
    5.
    发明授权
    Cyanohydrin ethers and esters as high-sensitivity enzyme substrates 失效
    氰基醇醚和酯作为高灵敏度酶底物

    公开(公告)号:US06710200B2

    公开(公告)日:2004-03-23

    申请号:US10338486

    申请日:2003-01-07

    IPC分类号: C07C25503

    摘要: Ethers and esters of cyanohydrins that contain optically detectable moieties are highly effective for detecting, monitoring, and measuring the activity of enzymes that cause the cleavage of certain types of substrates. The cyanohydrins function as proaldehydes and proketones, spontaneously converting to aldehydes and ketones, respectively, which provide a large increase in optical detectability relative to both the starting esters and ethers and the cyanohydrins.

    摘要翻译: 含有光学可检测部分的氰醇的醚和酯对于检测,监测和测量导致某些类型底物裂解的酶的活性是非常有效的。 氰醇作为醛和原酮,分别自发转化成醛和酮,这相对于起始酯和醚和氰醇都提供了大的光学可检测性的增加。

    Ester compound and its use
    6.
    发明申请
    Ester compound and its use 有权
    酯化合物及其用途

    公开(公告)号:US20030195119A1

    公开(公告)日:2003-10-16

    申请号:US10410354

    申请日:2003-04-10

    发明人: Tatsuya Mori

    IPC分类号: A01N037/34 C07C255/39

    摘要: A cyclopropanecarboxylic acid ester compound of formula (1): 1 has an excellent pesticidal efficacy, and a pesticidal composition comprising it as an active ingredient is useful for controlling pests.

    摘要翻译: 式(1)的环丙烷羧酸酯化合物:具有优异的杀虫功效,含有它作为活性成分的杀虫组合物可用于防治害虫。

    Process for preparing gamma-cyhalothrin
    8.
    发明授权
    Process for preparing gamma-cyhalothrin 有权
    制备γ-氯氟氰菊酯的方法

    公开(公告)号:US07507852B2

    公开(公告)日:2009-03-24

    申请号:US10546138

    申请日:2004-02-23

    IPC分类号: C07C253/30

    摘要: A process for the preparation of gamma-cyhalothrin comprising steps of a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride and b) esterifying 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride with the (S)-cyanohydrin of 3-phenoxy benzaldehyde (III).

    摘要翻译: 一种制备γ-氯氟氰菊酯的方法,包括以下步骤:a)将1R顺式-Z-(2-氯-3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷羧酸氯化,得到1R顺式 -Z 3-(2-氯-3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷甲酰氯,和b)酯化1R顺式-3,3-(2-氯-3,3,3 - 三氟-1-丙烯基)-2,2-二甲基环丙烷甲酰氯与3-苯氧基苯甲醛(III)的(S) - 氰基氢酯反应。

    Production process of gamma-cyhalothrin
    9.
    发明申请
    Production process of gamma-cyhalothrin 有权
    γ-氯氟氰菊酯的生产工艺

    公开(公告)号:US20060100457A1

    公开(公告)日:2006-05-11

    申请号:US10539265

    申请日:2003-12-09

    IPC分类号: C07C255/28

    摘要: A process for the preparation of gamma-cyahlothrin comprising a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-triflu-oro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cy-clopropanecarboxylic acid chloride; b) esterifying 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride with 3-phenoxy benzaldehyde in the presence of a source of cyanide to form a diastereoisomeric mixture of cyhalothrin isomers and c) epimerising the diastereoisomeric mixture under conditions in which the least soluble diastereoisomer crystallises from solution.

    摘要翻译: 一种制备γ-氰基丙烯腈的方法,包括a)将1R顺式-Z-(2-氯-3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷甲酸氯化,得到1R顺式 -Z 3-(2-氯-3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷甲酰氯; b)在氰化源存在下,用3-苯氧基苯甲醛酯化1R顺式-Z-(2-氯-3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷甲酰氯以形成 三氟氯氰菊酯异构体的非对映异构体混合物和c)在溶液中结晶最小溶解非对映异构体的条件下使非对映异构体混合物差向异构化。