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306 条记录 (耗时 0.025 秒)

    Synthesis of high-purity dialkyl 2-vinylcyclopropane-1,1-dicarboxylate
    81.
    发明授权
    Synthesis of high-purity dialkyl 2-vinylcyclopropane-1,1-dicarboxylate 失效
    高纯度2-乙烯基环丙烷-1,1-二羧酸二烷基酯的合成

    公开(公告)号：US4713479A

    公开(公告)日：1987-12-15

    申请号：US936004

    申请日：1986-11-28

    申请人： Clarence E. Clark, Jr. ,  Richard G. Fayter, Jr.

    发明人： Clarence E. Clark, Jr. ,  Richard G. Fayter, Jr.

    IPC分类号： C07C69/743

    CPC分类号： C07C69/743

    摘要： This invention relates to a two-step synthesis of high purity dialkyl 2-vinyl-cyclopropane-1,1-dicarboxylate in which a mixture of trans- and cis-1,4-dihalobutene-2 is first isomerized to essentially trans-1,4-dihalobutene-2 followed immediately by cyclocondensing the resultant trans-1,4-dihalobutene-2 with a malonic ester in the presence of an alcoholic solution of a metallic alkoxide.

    摘要翻译： 本发明涉及高纯度2-乙烯基 - 环丙烷-1,1-二羧酸二烷基酯的两步合成，其中反式 - 顺式-1,4-二卤丁烯-2的混合物首先被异构化为基本上反式-1， 然后在金属醇盐的醇溶液存在下，立即将所得的反式1,4-二卤丁烷-2与丙二酸酯环化缩合。

    Process for the preparation of 1,1-dichloro-alkenes
    87.
    发明授权
    Process for the preparation of 1,1-dichloro-alkenes 失效
    1,1-二氯 - 烯烃的制备方法

    公开(公告)号：US4492800A

    公开(公告)日：1985-01-08

    申请号：US468786

    申请日：1983-02-22

    申请人： Fritz Maurer ,  Uwe Priesnitz ,  Hans-Jochem Riebel

    发明人： Fritz Maurer ,  Uwe Priesnitz ,  Hans-Jochem Riebel

    IPC分类号： C07C69/743 ,  C07C17/00 ,  C07C17/26 ,  C07C17/263 ,  C07C21/04 ,  C07C21/19 ,  C07C22/00 ,  C07C22/02 ,  C07C22/04 ,  C07C45/00 ,  C07C49/567 ,  C07C51/00 ,  C07C61/40 ,  C07C67/00 ,  C07C253/00 ,  C07C255/48 ,  C07C69/74 ,  C07C121/48 ,  C07C121/60

    CPC分类号： C07C17/2635 ,  C07C21/19

    摘要： A process for the preparation of a 1,1-dichloro-alkene of the formula ##STR1## in which R.sup.1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, andR.sup.2 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, orR.sup.1 and R.sup.2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain,comprising reacting a carbonyl compound of the formula ##STR2## with a trichloromethanephosphonic acid ester of the formula ##STR3## in which R.sup.3 each individually is an alkyl or phenyl radical, or together are alkanediyl,in the presence of at least an equimolar amount of magnesium. Advantageously,R.sup.1 is hydrogen,R.sup.2 is a C.sub.2 to C.sub.5 alkenyl radical or a radical of the formula ##STR4## Z is a cyano, acetal, carboxyl or C.sub.1 to C.sub.4 alkoxycarbonyl radical, or a radical of the formula COOM, andM is sodium or potassium,R.sup.3 each individually is a C.sub.1 to C.sub.4 alkyl or phenyl radical, or the two radicals R.sup.3 together are C.sub.2 to C.sub.5 alkanediyl,about 0.95 to 1.4 moles of the trichloromethanephosphonic acid ester and about 1.5 to 4 moles of magnesium are employed per mole of the carbonyl compound, and the reaction is carried out at a temperature between about 0.degree. and 150.degree. C. in a polar aprotic solvent. The products are known intermediates, especially for insecticides.

    摘要翻译： 制备其中R 1为氢或任选取代的烷基，烯基，炔基，环烷基，芳烷基，芳烯基或芳基的式“IMAGE”的1,1-二氯 - 烯烃的方法，R 2为任选地 取代的烷基，烯基，炔基，环烷基，芳烷基，芳烯基或芳基，或者R 1和R 2一起形成任选支链和/或任选的苯并稠合烃链，包括使式IMA的羰基化合物与三氯甲烷膦酸 酯，其中R 3各自独立地是烷基或苯基，或者在至少等摩尔量的镁的存在下一起是烷二基。 有利地，R 1是氢，R 2是C 2至C 5链烯基或下式的基团Z是氰基，缩醛，羧基或C 1至C 4烷氧基羰基，或式COOM的基团，M是钠 或钾，R 3各自独立地为C 1至C 4烷基或苯基，或两个基团R 3一起为C 2至C 5烷二基，每摩尔使用约0.95至1.4摩尔三氯甲烷膦酸酯和约1.5至4摩尔镁 的羰基化合物，并且反应在极性非质子溶剂中在约0℃至150℃的温度下进行。 该产品是已知的中间体，特别是杀虫剂。

    Insecticidal esters
    88.
    发明授权
    Insecticidal esters 失效
    杀虫剂

    公开(公告)号：US4489093A

    公开(公告)日：1984-12-18

    申请号：US495481

    申请日：1983-05-17

    申请人： Jacques Martel ,  Jean Tessier ,  Andre Teche

    发明人： Jacques Martel ,  Jean Tessier ,  Andre Teche

    IPC分类号： A01N53/00 ,  A01N53/02 ,  A23K1/16 ,  A61K31/22 ,  A61K31/225 ,  C07D213/64 ,  C07D213/647 ,  C07D233/74 ,  C07F9/40 ,  C07C69/743 ,  C07C121/75

    CPC分类号： C07D213/647 ,  A01N53/00 ,  A23K20/105 ,  A23K20/111 ,  A61K31/22 ,  A61K31/225 ,  C07D233/74 ,  C07F9/4006

    摘要： Novel esters in all possible isomeric forms of the formula ##STR1## wherein R is selected from the group consisting of (a) optionally unsaturated alkyl of 1 to 8 carbon atoms and optionally unsaturated cycloalkyl or cycloalkyl-alkyl of 3 to 8 carbon atoms optionally substituted with at least one member of the group consisting of halogen, ##STR2## aryl optionally substituted with at least one member of the group consisting of --OH, alkoxy of 1 to 8 carbon atoms, alkyl of 1 to 8 carbon atoms, halogen, ##STR3## R' is alkyl of 1 to 8 carbon atoms, R" and R"' are individually selected from the group consisting of hydrogen and alkyl of 1 to 8 carbon atoms, AlK.sub.1, AlK.sub.2 and AlK.sub.3 are individually alkyl of 1 to 18 carbon atoms (b) aryl of 6 to 14 carbon atoms optionally substituted with at least one substituent selected from the group consisting of --OH, alkoxy of 1 to 8 carbon atoms, alkyl of 1 to 8 carbon atoms, halogen, --OCF.sub.3, --CF.sub.3 and --SCF.sub.3 and (c) heterocycle optionally substituted with at least one member of the group consisting of --OH, alkoxy of 1 to 8 carbon atoms, alkyl of 1 to 8 carbon atoms, halogen, --CF.sub.3, --OCF.sub.3 and --SCF.sub.3, B is selected from the group consisting of optionally unsaturated alkyl of 1 to 18 carbon atoms, optionally unsaturated cycloalkyl of 3 to 18 carbon atoms and the remainder of an alcohol used in synthesis of pyrethrinoid esters, X is halogen and the ethylenic double bond may have Z or E geometry having parasitic activity, especially insecticidal acaricidal and nematocidal activity.

    摘要翻译： 式（Ⅰ）的所有可能异构体形式的新型酯，其中R选自（a）1-8个碳原子的任选不饱和烷基和任选不饱和的环烷基或3-8个碳原子的环烷基 - 烷基， 被至少一个由以下组成的组中的至少一个取代：卤素，任选被至少一个由以下组成的组中的一个基团取代：-OH，含有1-8个碳原子的烷氧基， 1至8个碳原子，卤素，R'是1至8个碳原子的烷基，R“和R”'分别选自氢和1至8个碳原子的烷基，AlK1， AlK 2和AlK 3分别是1至18个碳原子的烷基（b）任选被至少一个选自-OH，1至8个碳原子的烷氧基，1至8个碳原子的烷基取代的6至14个碳原子的芳基， 8个碳原子，卤素，-OCF 3，-CF 3和-SCF 3和（c）任选的杂环 由至少一个由-OH组成的基团，1至8个碳原子的烷氧基，1至8个碳原子的烷基，卤素，-CF 3，-OCF 3和-SCF 3，B选自任选的 具有1至18个碳原子的不饱和烷基，3至18个碳原子的任选不饱和环烷基和用于合成除虫菊酯的醇的其余部分，X是卤素，烯键双键可具有具有寄生活性的Z或E几何形状，特别是 杀虫杀螨和杀线虫活性。