Process for the continuous oligomerization of hexafluoropropene oxide
    21.
    发明授权
    Process for the continuous oligomerization of hexafluoropropene oxide 失效
    十六烷基氧化物连续低级化的方法

    公开(公告)号:US5087748A

    公开(公告)日:1992-02-11

    申请号:US463391

    申请日:1990-01-11

    CPC分类号: C07C51/58

    摘要: A continuous process for the preparation of perfluorinated carbonyl fluorides from hexafluoropropene oxide (HFPO), in which HFPO is continuously oligomerized in a catalyst solution in devices which allow separation of the heavy product phase from the catalyst phase during the reaction, is described. Different oligomer distributions can be achieved by choice of the catalyst and different operating temperatures. The reaction itself takes place always in the substantial absence of the product which is formed, and achieves a considerable saving in time.

    摘要翻译: 描述了用于从六氟丙烯氧化物(HFPO)制备全氟化羰基氟化物的连续方法,其中HFPO在催化剂溶液中连续低聚,在反应期间允许将重质产物相与催化剂相分离的装置中。 可以通过选择催化剂和不同的操作温度来实现不同的低聚物分布。 反应本身总是在形成的产品的实质上不存在的情况下实现,并且实现了相当大的时间节省。

    Method for carrying out multiphase aldol condensation reactions to give mixed α, β-unsaturated aldehydes
    22.
    发明授权
    Method for carrying out multiphase aldol condensation reactions to give mixed α, β-unsaturated aldehydes 有权
    进行多相醛醇缩合反应的方法,得到混合的α,β-不饱和醛

    公开(公告)号:US08841489B2

    公开(公告)日:2014-09-23

    申请号:US13989455

    申请日:2012-02-09

    IPC分类号: C07C45/72 C07C45/74 C07C45/45

    CPC分类号: C07C45/45 C07C45/74 C07C47/21

    摘要: The invention relates to a continuous method for carrying out a multiphase aldol condensation reaction to obtain mixed α,β-unsaturated aldehydes by reacting a mixture of two aliphatic aldehydes having different numbers of carbon atoms, i.e. 2 to 5, in the molecule in a vertical tubular reactor in a concurrent flow in the presence of an aqueous solution of a basically reacting compound. In said method, the aldehyde mixture is dispersed in the aqueous phase in the form of drops, and the aqueous solution of the basically reacting compound flows through the tubular reactor as a continuous phase in laminar conditions.

    摘要翻译: 本发明涉及一种用于进行多相醛醇缩合反应的连续方法,以通过使分子中具有不同数目的碳原子的两个脂族醛(即2至5)的混合物在分子中反应获得混合的α,β-不饱和醛 在基本上反应的化合物的水溶液存在下,并行流动的立管式反应器。 在所述方法中,醛混合物以液滴的形式分散在水相中,基本反应的化合物的水溶液在层流条件下作为连续相流动通过管式反应器。

    Process for aftertreating polyolesters
    23.
    发明授权
    Process for aftertreating polyolesters 有权
    后处理多元醇酯的方法

    公开(公告)号:US08796486B2

    公开(公告)日:2014-08-05

    申请号:US13805693

    申请日:2011-06-29

    IPC分类号: C07C69/34 C07C69/52 C07C67/60

    CPC分类号: C07C67/60 C07C69/28

    摘要: A process for aftertreatment of polyol esters prepared by reacting polyols of the general formula H—(—O—[—CR1R2—]m—)o—OH in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, or a hydroxyalkyl radical having 1 to 5 carbon atoms, m is an integer of 1 to 10, o is an integer of 2 to 15, with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms in the presence of an adsorbent and in the presence of metal compounds selected from the group of titanium compounds, zirconium compounds, tin compounds, zinc compounds, iron compounds and aluminum compounds as a catalyst while removing the water formed and subsequently treating with steam, characterized in that the polyol ester obtained is aftertreated first with an oxidizing or reducing compound and immediately thereafter with steam at a temperature of 150 to 250° C. and over a period of 0.5 to 5 hours.

    摘要翻译: 一种通过使通式为H - ( - O - [ - CR 1 R 2 - ] m - )o-OH的多元醇反应制备的多元醇酯的方法,其中R 1和R 2各自独立地为氢,具有1至5个碳原子的烷基 原子或具有1至5个碳原子的羟烷基,m是1至10的整数,o是2至15的整数,在吸附剂存在下具有3至20个碳原子的直链或支链脂肪族单羧酸 在选择钛化合物,锆化合物,锡化合物,锌化合物,铁化合物和铝化合物作为催化剂的金属化合物的存在下,同时除去形成的水并随后用蒸汽处理,其特征在于获得的多元醇酯 首先用氧化或还原化合物进行后处理,然后立即用蒸汽在150至250℃的温度和0.5至5小时的时间内进行处理。

    PROCESS FOR PREPARING POLYOL ESTERS
    24.
    发明申请
    PROCESS FOR PREPARING POLYOL ESTERS 有权
    制备多糖酯的方法

    公开(公告)号:US20120190883A1

    公开(公告)日:2012-07-26

    申请号:US13499176

    申请日:2010-09-17

    IPC分类号: C07C67/08

    CPC分类号: C07C67/08 C07C69/28

    摘要: The present invention relates to a process for preparing polyol esters by reacting polyols with linear or branched aliphatic monocarbocxylic acids having 3 to 20 carbon atoms, the reaction taking place in the presence of a Lewis acid comprising at least one element from groups 4 to 14 of the Periodic Table of the Elements as catalyst, and in the presence of an adsorbent, the reaction product being subjected subsequently to a steam treatment.

    摘要翻译: 本发明涉及通过使多元醇与具有3-20个碳原子的直链或支链脂肪族单羧酸反应制备多元醇酯的方法,该反应在路易斯酸存在下进行,该路易斯酸包含至少一种来自第4〜14族的元素 元素周期表作为催化剂,并且在吸附剂存在下,反应产物随后进行蒸汽处理。

    Process for preparing aromatic olefins
    26.
    发明授权
    Process for preparing aromatic olefins 失效
    芳烃烯烃的制备方法

    公开(公告)号:US5360924A

    公开(公告)日:1994-11-01

    申请号:US177945

    申请日:1994-01-06

    CPC分类号: C07C67/343

    摘要: Process for preparing aromatic olefins of the formula (1) ##STR1## in which R.sup.1 -R.sup.3 are hydrogen, alkyl (C.sub.1 -C.sub.8) , alkoxy-(C.sub.1 -C.sub.5), phenyl, fluorine, chlorine, bromine, --OH, --NO.sub.2, --CN, --CHO, --COalkyl(C.sub.1 -C.sub.4) , --COphenyl, --COOalkyl (C.sub.1 -C.sub.4) , --OCOalkyl(C.sub.1 -C.sub.4), --NHCOalkyl(C.sub.1 -C.sub.4) , --CF.sub.3, --NH.sub.2, --NH--alkyl(C.sub.1 -C.sub.4) or --N(alkyl(C.sub.1 -C.sub.4)).sub.2 and R.sup.4 is hydrogen, alkyl(C.sub.1 -C.sub.8), phenyl, fluorine, chlorine, bromine, --OH, --NO.sub.2, --CN, --CHO or --OCOalkyl (C.sub.1 -C.sub.4) , and X is, inter alia, alkenyl(C.sub.2 -C.sub.12) or cycloalkenyl(C.sub.4 -C.sub.8) or the group ##STR2## in which R.sup.5 and R.sup.6 are, independently of one another, hydrogen or methyl, and Y is --phenyl, --CN, --COOH, --COOalkyl(C.sub.1 -C.sub.12), --COOphenyl, ##STR3## --CON (phenyl).sub.2, --COalkyl(C.sub.1 -C.sub.12), --COphenyl, --Oalkyl(C.sub.1 -C.sub.12) , --Ophenyl or the radical ##STR4## in which R.sup.1 -R.sup.4 are as defined above, by reacting an aryldiazonium salt of the formula (2) ##STR5## in which R.sup.1 -R.sup.4 are as defined and Z is the equivalent of an anion of an acid having a pK.sub.a of less than 7, with an olefin of the formula (3)HX (3)

    摘要翻译: 制备式(1)的芳族烯烃的方法其中R1-R3是氢,烷基(C1-C8),烷氧基 - (C1-C5),苯基,氟,氯,溴,-OH ,-NO 2,-CN,-CHO,-CO烷基(C1-C4),-CO苯基,-COO烷基(C1-C4),-OCO烷基(C1-C4),-NHCO烷基(C1-C4) ,-NH-烷基(C1-C4)或-N(烷基(C1-C4))2,R4是氢,烷基(C1-C8),苯基,氟,氯,溴,-OH,-NO2,-CN ,-CHO或-OCO烷基(C1-C4),X特别是链烯基(C2-C12)或环烯基(C4-C8)或其中R5和R6彼此独立的基团 氢或甲基,Y是 - 苯基,-CN,-COOH,-COO烷基(C1-C12),-COO苯基,-CON(苯基)2,-CO-烷基(C1-C12) (2)的芳基重氮盐(其中R1-R4如上所定义)的基团(C1-C12), - 苯基或其中R1-R4如上所定义的基团 Z是相当于pKa小于7的酸的阴离子与下式的烯烃 (3)HX(3)

    Purification of 1, 1, 1-tris(4'-hydroxyphenyl)ethane
    27.
    发明授权
    Purification of 1, 1, 1-tris(4'-hydroxyphenyl)ethane 失效
    1,1,1-三(4'-羟基苯基)乙烷的纯化

    公开(公告)号:US4992598A

    公开(公告)日:1991-02-12

    申请号:US478072

    申请日:1990-02-09

    摘要: A process for the purificationof 1,1,1-tris(4'-hydroxyphenyl)ethane by washing a crude admixture containing both it and impurities with a saturated solution of 1,1,1-tris(4'-hydroxyphenyl)ethane in water and methanol; and isolating the washed crude admixture from the effluent and dissolving the washed crude admixture in methanol, and adding water and sodium borohydride to the dissolved, washed crude admixture to form a precipitate of 1,1,1-tris(4'-hydroxyphenyl)ethane, and filtering the precipitate to form a resultant purified 1,1,1-tris(4'-hydroxyphenyl)ethane and a filtrate. Another embodiment of the invention provides iteratively repeating the process by washing an additional crude admixture batch with the filtrate from a prior purification.

    Halogenated cinnamic acids and esters thereof, processes for the
preparation thereof and halogenated aryldiazonium salts
    29.
    发明授权
    Halogenated cinnamic acids and esters thereof, processes for the preparation thereof and halogenated aryldiazonium salts 失效
    卤化肉桂酸​​及其酯,其制备方法和卤代芳基重氮盐

    公开(公告)号:US5516932A

    公开(公告)日:1996-05-14

    申请号:US178089

    申请日:1994-01-06

    摘要: The present invention relates to compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are hydrogen or an alkyl radical having 1 to 18 carbon atoms and optionally containing oxygen, nitrogen or halogen, the radicals X, Y and Z are identical and are a fluorine, bromine or iodine atom or if two of the radicals X, Y or Z are identical or all of the radicals X, Y, Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom. The invention further relates to a process for the preparation of the compounds, by reacting an aryldiazonium salt of the formula ##STR2## in which the radicals X, Y and Z are identical and are a fluorine, bromine or iodine atom or, if two of the radicals X, Y and Z are identical or all of the radicals X, Y, Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom and A.sup.(-) is an anion of an acid having a pK.sub.a

    摘要翻译: 本发明涉及式(I)的化合物,其中R 1和R 2相同或不同并且是氢或具有1至18个碳原子并且任选地含有氧,氮或卤素的烷基,基团X, Y和Z相同并且是氟,溴或碘原子,或者如果基团X,Y或Z中的两个相同或基团X,Y,Z的全部彼此不同,则X,Y和Z是 氟,氯,溴或碘原子。 本发明还涉及通过使基团X,Y和Z相同且为氟,溴或碘原子的式(II)的芳基重氮盐与式 如果基团X,Y和Z中的两个相同或全部基团X,Y,Z彼此不同,X,Y和Z是氟,氯,溴或碘原子,并且A( - )是 具有pKa <7的酸的阴离子与式(III)的化合物反应,其中R 1和R 2相同或不同,并且是氢或具有1至18个碳原子的烷基,并且任选地含有氧,氮 或卤素,在含钯催化剂的存在下,如果合适,加入碱,和式(II)的芳基重氮盐。

    Process for preparing vinyl-substituted aromatic compounds from
arylamines
    30.
    发明授权
    Process for preparing vinyl-substituted aromatic compounds from arylamines 失效
    从芳基胺制备乙烯基取代的芳族化合物的方法

    公开(公告)号:US5475176A

    公开(公告)日:1995-12-12

    申请号:US222325

    申请日:1994-04-04

    CPC分类号: C07C41/30 C07B37/04 C07C2/86

    摘要: The present invention relates to a process for preparing vinyl-substituted aromatic compounds of the formula (I) Ar--CH.dbd.CH.sub.2, where Ar is a phenyl group that may bear 1 to 5 substituents, naphthyl or anthryl or a naphthyl radical bearing 1 to 7 substituents or an anthryl radical bearing 1 to 8 substituents, or a mononuclear five-, six- or seven-membered heterocyclic aromatic group which contains an oxygen atom and/or one or two nitrogen atoms in the ring and may bear 1 to 5 substituents, wherein an arylamine of the formula (II) Ar--NH.sub.2, where Ar has the aforementioned meaning, is reacted in an organic acid with an organic nitrite of the formula (III) R--ONO, where R is an alkyl group having 1 to 18 carbon atoms, a phenyl radical which may bear 1 to 3 alkyl groups each having 1 to 4 carbon atoms, or is an alkylcarbonyl group having 2 to 5 carbon atoms, and ethylene in an organic solvent in the presence of a palladium(0) of palladium(II) compound at temperatures of 0.degree. to 35.degree. C.

    摘要翻译: 本发明涉及制备式(I)所示的乙烯基取代的芳族化合物的方法Ar-CH = CH 2,其中Ar是可以带有1至5个取代基的苯基,含有1至5个取代基的萘基或蒽基或萘基 7个取代基或含有1至8个取代基的蒽基,或在环中含有氧原子和/或一个或两个氮原子的单核五,六或七元杂环芳族基团,并且可以具有1至5个取代基 其中式(II)Ar-NH 2的芳基胺(其中Ar具有上述含义)在有机酸与式(III)的有机亚硝酸酯R-ONO反应,其中R是具有1〜 18个碳原子,可具有1至3个具有1至4个碳原子的烷基或者是具有2至5个碳原子的烷基羰基的苯基,以及在有机溶剂中的钯(0)存在下的乙烯, 的钯(II)化合物在0℃至35℃的温度下进行。