Preparation of substituted vinylcyclopropane-carboxylic acid esters
    3.
    发明授权
    Preparation of substituted vinylcyclopropane-carboxylic acid esters 失效
    取代的乙烯基环丙烷 - 羧酸酯的制备

    公开(公告)号:US4256907A

    公开(公告)日:1981-03-17

    申请号:US899664

    申请日:1978-04-24

    摘要: A process for the preparation of a substituted vinyl-cyclopropanecarboxylic acid ester of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is alkyl with 1-4 carbon atoms or halogen,R.sup.3 is halogen, phenoxy or phenoxy substituted by alkyl with 1-4 carbon atoms or by halogen,R.sup.4 is halogen or methyl, andn is 0, 1, 2, 3 or 4,comprising saponifying with alkali an ester of the formula ##STR2## in which R.sup.5 is alkyl with 1-4 carbon atoms,thereby to replace R.sup.5 by an alkaline salt group, and directly reacting such salt without intermediate purification with a benzyl chloride of the formula ##STR3## Advantageously the benzyl chloride is obtained by the gas-phase photochlorination of a compound of the formula ##STR4## the chlorination proceeding to about 25 to 75%, and the chlorination mass being employed directly without isolation.

    摘要翻译: 制备下式的取代的乙烯基 - 环丙烷羧酸酯的方法,其中R 1和R 2各自独立地为具有1-4个碳原子的烷基或卤素,R 3为卤素,苯氧基或被烷基取代的苯氧基, 4个碳原子或卤素,R 4是卤素或甲基,n是0,1,2,3或4,其包括用碱皂化其中R 5是具有1-4个碳原子的烷基的式“IMAGE”的酯, 从而用碱性盐基代替R 5,并且直接使这种盐与不经中间纯化的下式的苄基氯反应。有利地,苄基氯是通过气相光氯化式(VI)的化合物获得的 IV),氯化进行到约25至75%,并且氯化质量直接使用而不分离。

    Process for the monohalogenation of alkylbenzenes in the
.alpha.-position and new alkylbenzenes monohalogenated in the
.alpha.-position
    7.
    发明授权
    Process for the monohalogenation of alkylbenzenes in the .alpha.-position and new alkylbenzenes monohalogenated in the .alpha.-position 失效
    在α位上的烷基苯的单卤化方法和在α-位上单卤代的新的烷基苯

    公开(公告)号:US4331821A

    公开(公告)日:1982-05-25

    申请号:US209765

    申请日:1980-11-24

    摘要: A process for the monohalogenation of alkylbenzenes in the .alpha.-position is disclosed wherein an alkylbenzene reactant containing a hydrogen atom in the .alpha.-position is contacted with a halogen and the reaction mixture is withdrawn such that the amount of monohalogenated alkylbenzene formed is no greater than 33 mol percent in the reaction mixture. Also disclosed are novel monohalogenated alkylbenzenes of the formula ##STR1## in which R.sup.7 represents trifluoromethoxy, trifluoromethylthio or 2-perfluoropropyl or also, if R.sup.8 represents chlorine, represents trifluoromethyl and, furthermore, ifR.sup.8 and R.sup.9 represent trifluoromethyl, represents hydrogen,R.sup.8 represents hydrogen or also, if R.sup.7 represents trifluoromethyl or trifluoromethoxy, represent chlorine and also, if R.sup.7 represents hydrogen and R.sup.9 represents trifluoromethyl, denotes trifluoromethyl andR.sup.9 represents hydrogen and, if R.sup.7 represents hydrogen and R.sup.8 represents trifluoromethyl, denotes trifluoromethyl.

    摘要翻译: 公开了一种在α-位上烷基苯单一卤化的方法,其中含有α位上的氢原子的烷基苯反应物与卤素接触,取出反应混合物使得形成的单卤代烷基苯的量不大于 在反应混合物中为33摩尔%。 还公开了具有式“IMAGE”的新型单卤代烷基苯,其中R 7表示三氟甲氧基,三氟甲硫基或2-全氟丙基,或者如果R 8表示氯,则表示三氟甲基,此外,如果R 8和R 9表示三氟甲基,则R 8表示氢 或者如果R 7表示三氟甲基或三氟甲氧基,也表示氯,并且如果R 7表示氢且R 9表示三氟甲基,则表示三氟甲基,R 9表示氢,如果R 7表示氢且R 8表示三氟甲基,则表示三氟甲基。

    Heterocyclic sulfonium salt containing plant-growth regulant compositions
    8.
    发明授权
    Heterocyclic sulfonium salt containing plant-growth regulant compositions 失效
    含有植物生长调节剂组合物的杂环锍盐

    公开(公告)号:US4047923A

    公开(公告)日:1977-09-13

    申请号:US588083

    申请日:1975-06-18

    IPC分类号: A01N43/32 A01N5/00

    CPC分类号: A01N43/32

    摘要: Plant-growth regulating compositions and methods having strong effects on plant growth, containing a heterocyclic sulfonium salt of the formula ##STR1## in which R is alkyl; substituted alkyl; alkenyl; alkynyl; cycloalkyl; or aralkyl which is optionally substituted in the aryl moiety;A.sup.- is one equivalent of an anion; and X is oxygen or the group N.sup.+ R'R" A.sup.- or S.sup.+ -R'" A.sup.- in whichA.sup.- is identified as above;R' and R", which may be identical or different, are each alkyl of up to 6 carbon atoms; andR'" is defined as R or can be, together with R, an ethylene linkage.

    摘要翻译: 植物生长调节组合物和对植物生长具有强烈影响的方法,其含有式(I)的杂芳基锍盐,其中R是烷基; 取代的烷基; 烯基; 炔基; 环烷基 或在芳基部分任选被取代的芳烷基; A-是一个当量的阴离子; 并且X是氧或者其中A-如上所述鉴定的基团N + R'R“A-或S + -R”'A- R'和R“可以相同或不同,分别为至多6个碳原子的烷基; 并且R“被定义为R或可以与R一起形成乙烯键。