Synthesis of pyrethroids and pyrethroid-containing compositions
    95.
    发明授权
    Synthesis of pyrethroids and pyrethroid-containing compositions 有权
    拟除虫菊酯和拟除虫菊酯组合物的合成

    公开(公告)号:US09487471B1

    公开(公告)日:2016-11-08

    申请号:US14686647

    申请日:2015-04-14

    申请人: PROVIVI, INC.

    IPC分类号: C07C69/747 A01N53/00

    摘要: The present invention provides methods for synthesizing pyrethroid compounds. The methods include forming a first reaction comprising an olefin and an allethrolone-type unsaturated alcohol under conditions sufficient to form a metathesis product and converting the metathesis product to the pyrethroid. Methods of the invention can be used to prepare compounds including pyrethrin I, cinerin I, jasmolin I, pyrethrin II, cinerin II, and jasmolin II as well as other synthetic pyrethroid compounds. Insecticidal compositions and methods for controlling insects are also described.

    摘要翻译: 本发明提供合成拟除虫菊酯化合物的方法。 所述方法包括在足以形成复分解产物并将复分解产物转化为拟除虫菊酯的条件下形成包含烯烃和抗坏血酸类型不饱和醇的第一反应。 本发明的方法可用于制备包括除虫菊酯I,cinerin I,jasmolin I,除虫菊酯II,cinerin II和jasmolin II以及其他合成拟除虫菊酯化合物的化合物。 还描述了用于防治昆虫的杀虫组合物和方法。

    Pyrethroid compound, preparation process and use thereof
    96.
    发明授权
    Pyrethroid compound, preparation process and use thereof 有权
    拟除虫菊酯化合物,其制备方法及其用途

    公开(公告)号:US08629296B2

    公开(公告)日:2014-01-14

    申请号:US13259275

    申请日:2010-02-11

    IPC分类号: C07C69/747

    摘要: Disclosed are a pyrethroid compound, a preparation process and the use thereof, wherein the compound is a stereoisomer of 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl-3-(3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate. The structure of the compound is represented by formula (A), in which the carbon-carbon double bond in carboxylic acid section is Z configuration, and the absolute stereo configuration at the 1-position of cyclopropane is R, namely, the said compound is 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl-1R-(Z)-3-(3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate. The said pyrethroid compound has a high activity, and has a significant effect on preventing and curing sanitary pests.

    摘要翻译: 公开了拟除虫菊酯化合物及其制备方法及其用途,其中化合物为2,3,5,6-四氟-4-甲氧基甲基苄基-3-(3,3,3-三氟-1-丙烯基) -2,2-二甲基环丙烷甲酸酯。 化合物的结构由式(A)表示,其中羧酸部分中的碳 - 碳双键为Z构型,环丙烷1位上的绝对立体构型为R,即所述化合物为 2,3,5,6-四氟-4-甲氧基甲基苄基-1R-(Z)-3-(3,3,3-三氟-1-丙烯基)-2,2-二甲基环丙烷羧酸酯。 所述拟除虫菊酯化合物具有较高的活性,对预防和治理卫生有害生物有显着的效果。

    Preparation of cyclopropane esters
    97.
    发明授权
    Preparation of cyclopropane esters 失效
    制备环丙烷酯

    公开(公告)号:US5670697A

    公开(公告)日:1997-09-23

    申请号:US451288

    申请日:1995-05-26

    摘要: There is disclosed a process for the preparation of a lower alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylic acid which comprises the steps of (a) reacting a compound of formula: CF.sub.3 --CXCl--CH(OH)--CH.dbd.C(CH.sub.3).sub.2 (I) wherein X is chloro or bromo, with a tri-lower-alkyl orthoacetate containing up to four carbon atoms in each alkyl groups in the presence of at least a catalytic amount of an acid catalyst at an elevated temperature for a sufficient time to obtain a compound of formula: CF.sub.3 --CXCl--CH.dbd.CH--C(CH.sub.3).sub.2 --CH.sub.2 CO.sub.2 R(III) wherein R is an alkyl group containing up to four carbon atoms, and (b) treating said compound of formula (III) with at least one molar equivalent of a base to obtain said alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylic acid. The products are useful as intermediates for insecticides.

    摘要翻译: 公开了制备3-(2-氯-3,3,3-三氟丙-1-烯-1-基)-2,2-二甲基环丙烷羧酸的低级烷基酯的方法,该方法包括以下步骤: (a)使其中X是氯或溴的式:CF 3 -CClCl-CH(OH)-CH = C(CH 3)2(I)的化合物与含有至多四个碳原子的三低级烷基原乙酸酯反应 每个烷基在至少一种催化量的酸催化剂存在下在升高的温度下持续足够的时间以得到式CF 3 -CClCl-CH = CH-C(CH 3)2 -CH 2 CO 2 R(III)的化合物,其中 R是含有至多4个碳原子的烷基,和(b)用至少一摩尔当量碱处理式(III)化合物,得到所述3-(2-氯-3,3, 3-三氟丙-1-烯-1-基)-2,2-二甲基环丙烷羧酸。 该产品可用作杀虫剂的中间体。