제초활성을 가지는 페닐이속사졸린계 화합물 및 이의 용도
    1.
    发明授权
    제초활성을 가지는 페닐이속사졸린계 화합물 및 이의 용도 有权
    具有除草活性的苯并恶唑化合物及其用途

    公开(公告)号:KR101093102B1

    公开(公告)日:2011-12-13

    申请号:KR1020110100842

    申请日:2011-10-04

    CPC classification number: A01N43/80 C07D261/04

    Abstract: PURPOSE: A phenylisoxazoline compound and a method for preparing the same are provided to ensure high herbicidal activity with safety and to improve productivity of crops. CONSTITUTION: An ortho-substituted phenylisoxazoline compounds containing 2,6-difluorobenzyloxymethyl is denoted by chemical formula 1. In chemical formula I, R1 is C1-C4 alkyl group, halogen group, or haloalkyl group; R2 is hydrogen, methyl group, or ethyl group. An herbicide contains phenylisoxazoline compounds of chemical formula 1, racemic body thereof, or mirror image isomer as an active ingredient.

    Abstract translation: 目的:提供苯基异恶唑啉化合物及其制备方法,以确保高度的除草活性,安全性和提高农作物的生产力。 构成:化学式1表示含有2,6-二氟苄氧基甲基的邻位取代苯基异恶唑啉化合物。化学式I中,R 1为C 1〜C 4烷基,卤素基或卤代烷基。 R2是氢,甲基或乙基。 除草剂含有化学式1的苯基异恶唑啉化合物,其外消旋体或镜像异构体作为活性成分。

    고순도 메티오졸린의 공업적 제조방법
    3.
    发明授权
    고순도 메티오졸린의 공업적 제조방법 有权
    高纯度甲硫唑啉的制备方法

    公开(公告)号:KR101201203B1

    公开(公告)日:2012-11-15

    申请号:KR1020120033835

    申请日:2012-04-02

    CPC classification number: C07D413/04 B01J31/0271

    Abstract: PURPOSE: An industrial method for preparing [5-{(2,6-difluorobenzyloxy)methyl}-4,5-dihydro-5-methyl-3-(3-methylthiophene-2-yl)-isoxazole](methiozolin) is provided to obtain a large amount of the methiozolin of high purity and to cultivate agricultural crops. CONSTITUTION: A method for preparing thiozolin(chemical formula 1) comprises: a step of reacting 4,5-dihydro-5-methyl-3-{(3-methylthiophene-2-yl)-isoxazole-5-yl}methanol of chemical formula 2 with 2,6-difluorobenzyl(chloride or bromide) of chemical formula 3 using an alkali metal base and a phase converting catalyst in a mixture of water and organic solvent at 50-100 Deg. C. to prepare the concentrate of an organic layer; and a step of crystallizing the concentrate in a mixture solvent of water/ethanol, water/isopropanol, or C1-C3 alcohol/n-heptane. The organic solvent is benzene, toluene, xylene, chlorobenzene, or 1,2-dichloroethane. The alkali metal base is sodium hydroxide, potassium hydroxide, or lithium hydroxide.

    Abstract translation: 目的:提供制备[5 - {(2,6-二氟苄氧基)甲基} -4,5-二氢-5-甲基-3-(3-甲基噻吩-2-基) - 异恶唑](甲氧基)唑的工业方法) 获得大量高纯度的甲氧唑啉并培育农作物。 构成:制备噻唑啉(化学式1)的方法包括:将化合物的4,5-二氢-5-甲基-3 - {(3-甲基噻吩-2-基) - 异恶唑-5-基}甲醇 式2与化学式3的2,6-二氟苄基(氯化物或溴化物)使用碱金属碱和相转化催化剂在水和有机溶剂的混合物中在50-100℃下反应。 C.制备有机层的浓缩物; 以及将浓缩物在水/乙醇,水/异丙醇或C 1 -C 3醇/正庚烷的混合溶剂中结晶的步骤。 有机溶剂为苯,甲苯,二甲苯,氯苯或1,2-二氯乙烷。 碱金属碱是氢氧化钠,氢氧化钾或氢氧化锂。

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