Process to prepare diazinon
    2.
    发明授权
    Process to prepare diazinon 失效
    二嗪农的制备方法

    公开(公告)号:US5571916A

    公开(公告)日:1996-11-05

    申请号:US271988

    申请日:1994-07-08

    IPC分类号: C07F9/6512

    CPC分类号: C07F9/65125

    摘要: Diazinon is prepared by coverting the starting hydroxypyrimidine to its potassium salt by reacting it with potassium carbonate in an organic solvent after removal of the water by azeotropic distillation, and reacting the resulting non-aqueous salt with diethyl thiophosphoryl chloride and recovering the diazinon formed, wherein the quantity of potassium carbonate used relative to the starting hydroxypyrimidine is less than molar and desirably of a ratio in the range of 0.55 to 0.75.

    摘要翻译: 通过共沸蒸馏除去水后,通过使有机溶剂中的碳酸钾与碳酸钾反应,并将所得的非水性盐与二乙基硫代磷酰氯反应并回收所形成的二嗪农,将起始的羟基嘧啶与其钾盐反应,制得二嗪农,其中 相对于起始羟基嘧啶使用的碳酸钾的量小于摩尔,并且期望地为0.55至0.75的比率。

    Process for the manufacture of diazinon
    3.
    发明授权
    Process for the manufacture of diazinon 失效
    二嗪农的制备方法

    公开(公告)号:US5231180A

    公开(公告)日:1993-07-27

    申请号:US851458

    申请日:1992-03-16

    IPC分类号: C07F9/6512

    CPC分类号: C07F9/65125

    摘要: Diazinon is prepared by converting the starting hydroxypyrimidine to its potassium salt by reacting it with potassium carbonate in an organic solvent after removal of the water by azeotropic distillation, and reacting the resulting non-aqueous salt with diethyl thiophosphoryl chloride and recovering the diazinon formed. The solvent used is either MIBK or an aliphatic hydrocarbon desirably containing 1-20% MEK.

    摘要翻译: 二嗪农通过将起始羟基嘧啶转化为钾盐,通过在除去水后通过共沸蒸馏与有机溶剂中的碳酸钾反应,并使所得的非水性盐与二乙基硫代磷酰氯反应并回收形成的二嗪农,将其转化为钾盐。 所使用的溶剂是MIBK或理想含有1-20%MEK的脂族烃。

    Mothproofing agents
    10.
    发明授权
    Mothproofing agents 失效
    防蛀剂

    公开(公告)号:US4343618A

    公开(公告)日:1982-08-10

    申请号:US291999

    申请日:1981-08-11

    摘要: Organophosphorus esters, useful in increasing the resistance of keratinous materials to attack by keratin-eating insects, have the general formula: ##STR1## wherein: X and Y are independently O or S;R.sub.1 is an alkyl, alkoxy, alkylamino, dialkylamino or alkylmercapto radical having 1 to 6 carbon atoms; an amino or aryl radical;R.sub.2 is an alkyl radical having 1 to 6 carbon atoms;R.sub.3 is a radical of the general formula:--J--(K--L).sub.n ( 2)wherein:J is an aliphatic radical, or radical containing an aromatic or heterocyclic ring;K is one of the following radicals: ##STR2## linked to J through the oxygen atom in the case of (3), (5) or (6), and through the nitrogen atom in the case of (4), and in which the carbonyl oxygen atom of (3), (4) or (5), or one or both carbonyl oxygen atoms of (6) may be replaced by sulphur; R.sub.4 is hydrogen, an aryl radical, or an alkyl radical of 1 to 6 carbon atoms;L is a halogenated alkyl or alkenyl radical; an alkyl radical (having 1 to 4 carbon atoms) or aryl radical substituted with a vinylsulphonyl group, vinylsulphonamido group or precursors thereof; or a heterocyclic radical containing 1 to 4 halogen atoms attached to carbon atoms adjacent to a nitrogen atom of the ring, the ring being linked directly to K or through an alkylene group having 1 to 4 carbon atoms;n is 1 to 3.

    摘要翻译: 有机磷酯可用于增加角蛋白材料抵抗角蛋白食用昆虫的抵抗力,具有以下通式:其中:X和Y独立地为O或S; R1是具有1至6个碳原子的烷基,烷氧基,烷基氨基,二烷基氨基或烷基巯基; 氨基或芳基; R2是具有1至6个碳原子的烷基; R3是通式的基团:-J-(K-L)n(2)其中:J是脂族基团,或含有芳族或杂环的基团; (3)在(3)的情况下,K是通过氧原子与J相连的O(7)(3) 在(4)的情况下通过氮原子,其中(3),(4)或(5)的羰基氧原子,或者(3),(4)或(5)中的一个或两个羰基氧原子 (6)可以用硫代替; R4是氢,芳基或1-6个碳原子的烷基; L是卤代烷基或烯基; 具有1-4个碳原子的烷基或被乙烯基磺酰基取代的芳基,乙烯基磺酰胺基或其前体; 或与环的氮原子相邻的碳原子上连接有1至4个卤素原子的杂环基团,该环直接连接至K或通过具有1至4个碳原子的亚烷基; n为1〜3。