Process for the preparation of fluorinated nitroalkanes
    52.
    发明授权
    Process for the preparation of fluorinated nitroalkanes 失效
    制备氟化硝基烷烃的方法

    公开(公告)号:US4518812A

    公开(公告)日:1985-05-21

    申请号:US575636

    申请日:1984-01-31

    CPC分类号: C07C201/14 C07C205/08

    摘要: In the conjugated nitrofluorination of an olefin by reacting an olefin of the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each independently is hydrogen, fluorine, chlorine, bromine, alkyl, halogenoalkyl or cycloalkyl, orR.sup.2 and R.sup.4 together are an alkylene radical of 3 to 6 carbon atoms,with hydrogen fluoride and nitric acid to produce an .alpha.-fluorinated nitroalkane of the formula ##STR2## the improvement which comprises effecting the reaction in a vessel protected against corrosion employing about 1 to 1.1 mols of hydrogen fluoride and about 1 to 2 mols of nitric acid per mol of olefin. The process uses much less HF than heretofore and the products are useful intermediates in making herbicides. Some of the products are new.

    摘要翻译: 在烯烃的共轭硝基氟化中,通过使式(IMAGE)的烯烃反应,其中R 1,R 2,R 3和R 4各自独立地是氢,氟,氯,溴,烷基,卤代烷基或环烷基,或者R 2和R 4一起是 具有3至6个碳原子的亚烷基,与氟化氢和硝酸反应以产生下式的α-氟化的硝基烷烃:其中包括在使用约1至1.1摩尔氟化氢的保护反应的容器中进行反应 和约1至2摩尔硝酸/摩尔烯烃。 该方法使用比迄今为止少得多的HF,并且该产品是制备除草剂的有用中间体。 一些产品是新的。

    Certain trimethyl silyl-lower-alkyl esters of pyridyloxy-phenoxy-lower
alkanoic acids, compositions containing same and herbicidal method of
use
    53.
    发明授权
    Certain trimethyl silyl-lower-alkyl esters of pyridyloxy-phenoxy-lower alkanoic acids, compositions containing same and herbicidal method of use 失效
    吡啶氧基 - 苯氧基 - 低级链烷酸的某些三甲基甲硅烷基 - 低级烷基酯,含有该组合物的组合物和除草方法

    公开(公告)号:US4518416A

    公开(公告)日:1985-05-21

    申请号:US495883

    申请日:1983-05-18

    摘要: Novel substituted pyridyl-phenyl ethers of the formula ##STR1## in which X represents trifluoromethyl or chlorine,Y represents hydrogen or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents formyl or the radicals of the formulae ##STR2## in which R.sup.3 represents alkyl with 1 to 4 carbon atoms, or the two radicals R.sup.3 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,m represents 1 or 2,n represents 0 or 1 andZ represents trimethylsilyl, optionally substituted azolyl which is bonded via nitrogen or the radicals of the formulae ##STR3## in which R.sup.8 represents alkyl with 1 to 4 carbon atoms, or the two radicals R.sup.8 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.9 represents alkyl with 1 to 4 carbon atoms,X.sup.1 represents oxygen or sulphur andR.sup.10 and R.sup.11 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,and their use as herbicides.

    摘要翻译: 新颖的式(I)的取代的吡啶基 - 苯基醚,其中X表示三氟甲基或氯,Y表示氢或氯,R1表示氢或甲基,R2表示甲酰基或式“IMAGE”的基团,其中R3 表示具有1至4个碳原子的烷基,或两个基团R 3一起表示具有2或3个碳原子的亚烷基链,R 4,R 5,R 6和R 7彼此独立地表示氢或具有1至4个碳原子的烷基,m表示 1或2,n表示0或1,Z表示三甲基甲硅烷基,任选取代的通过氮键合的唑基或其中R 8表示具有1至4个碳原子的烷基的式“IMAGE”的基团,或两个基团R8一起表示 具有2或3个碳原子的亚烷基链,R 9表示具有1至4个碳原子的烷基,X 1表示氧或硫,R 10和R 11彼此独立地表示氢或具有1至4个碳原子的烷基,并且它们用作 除草剂。

    Process for the preparation of trifluoromethylnaphthalenes
    57.
    发明授权
    Process for the preparation of trifluoromethylnaphthalenes 失效
    制备三氟甲基萘的方法

    公开(公告)号:US4331613A

    公开(公告)日:1982-05-25

    申请号:US161810

    申请日:1980-06-23

    摘要: A process for the preparation of an optionally substituted trifluoromethyl-naphthalene which comprises contacting a compound of the formula ##STR1## in which R.sup.1 denotes hydrogen, alkyl, aralkyl, aryl, aryloxy, arylthio, polyhalogenoalkoxy, polyhalogenoalkylthio, halogen, nitro, halogenocarbonyl, halogenosulphonyl, alkylsulphonyl or arylsulphonyl, it being possible for the aromatic nuclei contained in the substituents R.sup.1 to be in turn substituted by halogen, alkyl, polyhalogenoalkoxy or polyhalogenoalkylthio,R.sup.2 represents hydrogen, halogen or alkyl andR.sup.3, R.sup.4, R.sup.5 and R.sup.6 denote hydrogen, orR.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 in each case together denote a fused-on aromatic ring, and wherein, in the case where R.sup.3 and R.sup.4 together form a fused-on aromatic ring,R.sup.5 and R.sup.6 independently of one another can also denote, in addition to hydrogen, halogen, nitro, halogenocarbonyl or halogenosulphonyl, and wherein, in the case where R.sup.4 and R.sup.5 together form a fused-on aromatic ring,R.sup.3 and R.sup.6 independently of one another can also denote, in addition to hydrogen, halogen, nitro, halogenocarbonyl or halogenosulphonyl,with carbon tetrachloride and hydrogen fluoride at a temperature of 70.degree. to 120.degree. C. and under a pressure of 5 to 30 bars the reaction product then optionally being treated with catalyst activated hydrogen.

    摘要翻译: 一种制备任选取代的三氟甲基 - 萘的方法,该方法包括使下式化合物(Ⅰ)的其中R 1表示氢,烷基,芳烷基,芳基,芳氧基,芳硫基,多卤代烷氧基,多卤代烷硫基,卤素,硝基, 卤代羰基,卤代磺酰基,烷基磺酰基或芳基磺酰基,取代基R1中所含的芳香族核可能又被卤素,烷基,多卤代烷氧基或多卤代烷硫基取代,R2代表氢,卤素或烷基,R3,R4,R5和R6表示 氢或R3和R4或R4和R5各自在一起表示稠合的芳环,并且其中,在R3和R4一起形成稠合的芳香环的情况下,R 5和R 6彼此独立地也可以 除了氢,卤素,硝基,卤代羰基或卤代磺酰基外,还表示在R4和R5一起形成稠合的芳香环的情况下,R 3和R 6独立地 彼此之间除了氢,卤素,硝基,卤代羰基或卤代磺酰基之外,还可以在70至120℃的温度和5至30巴的压力下表示反应产物 任选地用催化剂活化的氢处理。

    Process for the preparation of 2,4,6-trifluoro-1,3,5-triazine
    58.
    发明授权
    Process for the preparation of 2,4,6-trifluoro-1,3,5-triazine 失效
    制备2,4,6-三氟-1,3,5-三嗪的方法

    公开(公告)号:US4329458A

    公开(公告)日:1982-05-11

    申请号:US238328

    申请日:1981-02-26

    IPC分类号: C07B61/00 C07D251/28

    CPC分类号: C07D251/28

    摘要: The present invention relates to a process for the preparation of 2,4,6-trifluoro-1,3,5-triazine (TFT) from 2,4,6-trichloro-1,3,5-triazine (TCT) or from mixed chlorinated/fluorinated 1,3,5-triazines by fluorination with sodium fluoride in dipolar aprotic solvents.The process is characterized in that TCT or mixed chlorinated/fluorinated 1,3,5-triazines or mixtures thereof are metered into a suspension of sodium fluoride in a dipolar, aprotic solvent, which is warmed to a temperature of between 120.degree. C. and 220.degree. C. and optionally contains a further solvent.

    摘要翻译: 本发明涉及从2,4,6-三氯-1,3,5-三嗪(TCT)制备2,4,6-三氟-1,3,5-三嗪(TFT)或从 混合氯化/氟化1,3,5-三嗪通过氟化氟化物在偶极非质子溶剂中氟化。 该方法的特征在于将TCT或混合氯化/氟化1,3,5-三嗪或其混合物计量加入到氟化钠在偶极非质子溶剂中的悬浮液中,将其温热至120℃至 220℃,任选地含有另外的溶剂。

    M-Bromo-benzotrifluorides
    59.
    发明授权
    M-Bromo-benzotrifluorides 失效
    M-溴 - 三氟甲苯

    公开(公告)号:US4155940A

    公开(公告)日:1979-05-22

    申请号:US876821

    申请日:1978-02-10

    摘要: A process for preparing an m-bromo-benzotrifluoride by brominating an unsubstituted, halo or alkyl substituted benzotrichloride in the presence of a catalyst and thereafter fluorinating the brominated product at elevated temperature and pressure. Also disclosed are new m-bromo-benzotrifluorides including 4-fluoro-3-bromo-benzotrifluoride and 4-methyl-3-bromobenzotrifluoride.

    摘要翻译: 通过在催化剂存在下溴化未取代的,卤代或烷基取代的三氯甲烷,然后在升高的温度和压力下氟化溴化产物来制备间溴代三氟甲苯的方法。 还公开了包括4-氟-3-溴 - 三氟甲苯和4-甲基-3-溴三氟甲苯的新的溴代 - 三氟甲苯。

    Method for preparing trichloromethyl-trifluoromethyl-benzenes
    60.
    发明授权
    Method for preparing trichloromethyl-trifluoromethyl-benzenes 失效
    制备三氯甲基 - 三氟甲基 - 苯的方法

    公开(公告)号:US4093669A

    公开(公告)日:1978-06-06

    申请号:US731479

    申请日:1976-10-12

    摘要: A process for the preparation of a trichloromethyl-trifluoromethyl-benzene of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and represent hydrogen, fluorine or chlorine,By contacting at least one molecule of the formula ##STR2## wherein R.sup.1 and R.sup.2 are as previously identified, m and n are independently 0 to 3With another molecule of the formula ##STR3## wherein M AND N ARE INDEPENDENTLY 0 TO 3In the presence of a halogen transfer catalyst, optionally in the presence of a promoter.

    摘要翻译: 制备下式的三氯甲基 - 三氟甲基 - 苯的方法其中R 1和R 2相同或不同并且表示氢,氟或氯,通过接触至少一种式(II)的分子式其中R 1 和R 2如前所述,m和n独立地为0至3,其中另一个分子式为“图像”II,其中M和N在存在催化剂的情况下独立为0至3,可选地在促进剂存在下 。