Process for the preparation of bis-triazolylstilbenes
    1.
    发明授权
    Process for the preparation of bis-triazolylstilbenes 失效
    双三唑并苯二烯的制备方法

    公开(公告)号:US4217449A

    公开(公告)日:1980-08-12

    申请号:US950438

    申请日:1978-10-11

    CPC classification number: C07D249/06

    Abstract: Process for the preparation of bis-triazolylstilbene compounds which, in the form of the free acid, correspond to the formula ##STR1## wherein the phenyl radicals A can be substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, from bis-hydroxyiminohydrazonostilbene compounds of the formula ##STR2## characterized in that the bis-hyroxyiminohydrazonostilbene compounds are reacted with anhydrides of lower carboxylic acids in the presence of urea and polar solvents at temperatures from 10.degree. to 60.degree. C.

    Abstract translation: 以游离酸的形式对应于式(Ⅰ)的双 - 三唑基芪化合物的方法,其中苯基A可被卤素,C 1 -C 4 - 烷基或C 1 -C 4烷氧基取代, 双 - 羟基亚氨基腙茋化合物,其特征在于,在尿素和极性溶剂的存在下,双羟基亚氨基腙基茋化合物与低级羧酸的酸酐在10℃至60℃的温度下反应。

    3-Aryl-7-pyrazolyl-coumarins
    4.
    发明授权
    3-Aryl-7-pyrazolyl-coumarins 失效
    3-ARYL-7-PYRAZOLYL-COUMARINS

    公开(公告)号:US3957817A

    公开(公告)日:1976-05-18

    申请号:US874409

    申请日:1969-11-05

    CPC classification number: C07D405/04 C11D1/00 D06L3/12

    Abstract: 3-Aryl-7-pyrazolyl-coumarin compounds of the formula ##SPC1##In which R stands for hydrogen, halogen, alkyl or alkoxy radicals, n represents the numbers 1-3, R.sub.1 and R.sub.2 represent, hydrogen or alkyl or phenyl radical, R.sub.1 and R.sub.2 may also form, together with the two carbon atoms of the pyrazole ring, a non-aromatic carbocyclic, 5- or 6-membered ring system, radical as well as their production and use as brightening agents.

    Abstract translation: 1287457增白聚合物FARBENFABRIKEN BAYER AG 1969年10月24日[1968年11月5日] 52235/69标题C3P和C3R [也分为C2和D1]通过将对苯二甲酸二甲酯,乙二醇,锌 乙酸酯和3-苯基-7(3,4-二苯基 - 吡唑基) - 香豆素,在180℃下加热以进行酯交换,并在275℃下在氮气下进行预缩合。 一种聚合物组合物,其结合有下式的新增光剂:其中(a)R 1 =环己基,R 2 =苯基; (b)R 1 =苄基,R 2 =苯基:(c)R 1 =苯基,R 2 = i-C 3 H 7; (d)R 1 =苯基,R 2 =苄基; (e)R 1 = CH 3,R 2 =苄基,通过将所列化合物之一的聚丙烯颗粒和TiO 2在螺杆捏合机中混合并作为薄箔挤出而获得。 聚氯乙烯也具有如上所述的化合物(c)或(d),并入其中。

    Process for the preparation of substituted benzaldehydes
    5.
    发明授权
    Process for the preparation of substituted benzaldehydes 失效
    取代的苯甲醛的制备方法

    公开(公告)号:US4622429A

    公开(公告)日:1986-11-11

    申请号:US640414

    申请日:1984-08-13

    CPC classification number: C07C45/49

    Abstract: Substituted benzaldehydes are prepared by reaction of the substituted benzenes from which they are derived with carbon monoxide and hydrogen chloride in the presence of metal halides, the process being performed in the presence of 0.5 to 10 mols of hydrogen chloride per mol of metal halide at a partial pressure of carbon monoxide from 1 to 100 bars and a temperature from -20.degree. C. to +100.degree. C. and, if desired, in the presence of an inert diluent. The substituted benzaldehyde which contains, as a substituent, alkyl with at least 2 carbon atoms, cycloalkyl or optionally substituted benzyl, is prepared by reacting the appropriately substituted benzene with the additional presence of a benzene which does not contain the substituents mentioned, but which is identical in respect of further substituents which are optionally present with the benzene from which it is derived.

    Abstract translation: 取代的苯甲醛通过在金属卤化物存在下使衍生自它们的取代苯与氯化氢反应来制备,该方法是在0.5至10摩尔氯化氢/摩尔金属卤化物存在下进行的 一氧化碳分压为1至100巴,温度为-20℃至+100℃,如果需要,在惰性稀释剂存在下进行。 含有至少2个碳原子的烷基取代的苯甲醛,环烷基或任意取代的苄基,是通过使适当取代的苯与不含上述取代基的苯进一步存在而制备的, 对于任选存在于其衍生的苯的另外的取代基是相同的。

    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives
    7.
    发明授权
    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives 失效
    制备2,3,4,5-四氟苯衍生物的方法

    公开(公告)号:US06613948B1

    公开(公告)日:2003-09-02

    申请号:US09152595

    申请日:1998-09-14

    Abstract: 2,3,4,5-tetrafluorobenzene derivatives can be obtained in a particularly advantageous manner by reacting the corresponding chlorobenzene or (chloro, fluoro)-benzene derivatives with a fluorinating agent in the presence of a solvent and a catalyst at elevated temperature, which comprises carrying out the reaction initially under temperature and pressure conditions such that the respective 2,3,4,5-tetrafluoro-benzene derivative continuously distills off through a column, and subsequently setting temperature and pressure conditions such that residual fractions of the 2,3,4,5-tetrafluorobenzene derivative distill off with the corresponding 2,3,4-trifluoro-5-chloro compound.

    Abstract translation: 通过在溶剂和催化剂存在下,在升高的温度下使相应的氯苯或(氯,氟) - 苯衍生物与氟化剂反应,可以以特别有利的方式获得2,3,4,5-四氟苯衍生物, 包括最初在温度和压力条件下进行反应,使得相应的2,3,4,5-四氟苯衍生物通过柱连续蒸馏出来,随后设定温度和压力条件,使得2,3 ,4,5-四氟苯衍生物与相应的2,3,4-三氟-5-氯化合物蒸馏出。

    Process for the preparation of polyarylene sulphides
    10.
    发明授权
    Process for the preparation of polyarylene sulphides 失效
    聚亚芳基硫醚的制备方法

    公开(公告)号:US4433138A

    公开(公告)日:1984-02-21

    申请号:US379036

    申请日:1982-05-17

    CPC classification number: C08G75/0254 C08G75/0231

    Abstract: High molecular weight p-polyarylensulfides having a high melt viscosity, capable of being processed thermoplastically, and have good mechanical properties are produced by reacting components (a), (b), and (c) in a polar solvent with a molar ratio of (a):(c) in the range of 0.85:1 to 1.15:1 and a molar ratio of (c): solvent in the range of 1:2 to 1:15, for a time of up to 10 hours at a temperature of from 160.degree. C. to 300.degree. C., and in the presence of from 2 to 100 mole percent, relative to (c), of an N,N-dialkylcarboxamide;wherein component (a) is dihalogenobenzene with 50 to 100 mole percent of the formula ##STR1## and 0 to 50 mole percent of the formula ##STR2## wherein X is fluoro, chloro, bromo or iodo, and R is the same or different and each is selected from the group consisting of hydrogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 5 to 20 carbon atoms, aryl having 6 to 24 carbon atoms, alkaryl having 7 to 24 carbon atoms, aralkyl having 7 to 24 carbon atoms, and two R moieties linked together forming aryl having 6 to 24 carbon atoms or a heterocyclic moiety having an oxygen, nitrogen or sulphur hetero-atom and having 6 to 24 carbon atoms; with the proviso that at least one R is not hydrogen;component (b) is 0.1 to 2.4 mole percent, relative to the dihalogenobenzene, of a polyhalogenoaromatic of the formulaArX.sub.nwherein Ar is aryl or a heterocyclic moiety having an oxygen, nitrogen or sulphur heteroatom with said aryl and said heterocyclic each having from 6 to 24 carbon atoms;X is fluoro, chloro, bromo or iodo; andn is 3 or 4;and component (c) is alkali metal sulphide.

    Abstract translation: 通过使组分(a),(b)和(c)在极性溶剂中以摩尔比为((a),(b)和(c))反应,可以通过热塑性地热处理和具有良好的机械性能而具有高熔体粘度的高分子量对聚芳基硫化物 a):(c)在0.85:1至1.15:1的范围内,(c):溶剂的摩尔比在1:2至1:15的范围内,在温度下达10小时 相对于(c)为2〜100摩尔%的N,N-二烷基甲酰胺; 其中组分(a)是二卤代苯,其具有50-100摩尔%的式“IMAGE”和0至50摩尔%的式“IMAGE”,其中X是氟,氯,溴或碘,R是相同或不同的, 各自选自氢,具有1至20个碳原子的烷基,具有5至20个碳原子的环烷基,具有6至24个碳原子的芳基,具有7至24个碳原子的烷芳基,具有7至24个碳原子的芳烷基, 和两个连接在一起的R部分形成具有6至24个碳原子的芳基或具有氧,氮或硫杂原子并具有6至24个碳原子的杂环部分; 条件是至少一个R不是氢; 组分(b)相对于二卤代苯,为式ArXn的多卤代芳族化合物的0.1至2.4摩尔%,其中Ar为芳基或具有氧,氮或硫杂原子的杂环部分,所述芳基和所述杂环各自具有6至 24个碳原子; X是氟,氯,溴或碘; n为3或4; 组分(c)是碱金属硫化物。

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