Process for the production of methyl ethers from branched monoolefins
    2.
    发明授权
    Process for the production of methyl ethers from branched monoolefins 失效
    从支链单烯烃生产甲基醚的方法

    公开(公告)号:US4792639A

    公开(公告)日:1988-12-20

    申请号:US090175

    申请日:1987-08-27

    IPC分类号: C07C41/06 C07C41/14

    CPC分类号: C07C41/14 C07C41/06

    摘要: An improved process for the production of methyl ethers of the type in which methanol is reacted with a branched monoolefin in the presence of a catalytically effective amount of one or more acid catalyst, said improvements comprising carrying out said reaction in one or two steps in the presence of one or more liquid organic compounds having one or more hydroxy substituents which functions as a carrier for the branched monoolefins. The hydroxy compound also inhibits the polymerization of the branched monoolefins.

    摘要翻译: 一种在催化有效量的一种或多种酸催化剂存在下生产甲醇与支链单烯烃反应的甲基醚的改进方法,所述改进包括在一步或两步中进行所述反应 存在一种或多种具有一个或多个羟基取代基的液体有机化合物,其用作支链单烯烃的载体。 羟基化合物也抑制支链单烯烃的聚合。

    Producing methyl ethers of branched monoolefins
    3.
    发明授权
    Producing methyl ethers of branched monoolefins 失效
    生产支链单烯烃的甲基醚

    公开(公告)号:US4454356A

    公开(公告)日:1984-06-12

    申请号:US431978

    申请日:1982-10-14

    摘要: Methanol is reacted with branched monoolefins such as isobutylene, or mixtures of hydrocarbons such as mixed C-4's from or in a refinery, in the presence of methanesulfonic acid. A column (10) operation is described wherein methanesulfonic acid (11) and methanol (12) are fed in countercurrent fashion to hydrocarbons (13). Crude product ether is removed as a liquid sidestream (25) above the feed of methanesulfonic acid (11), while hydrocarbons depleted of the reactive branched monoolefins (24) are removed overhead. The methanesulfonic acid suppresses the vapor pressure of methanol relative to product ether.

    摘要翻译: 在甲磺酸存在下,甲醇与支链单烯烃如异丁烯或烃混合物如来自或在炼油厂中的混合C-4反应。 描述了一种塔(10)操作,其中甲烷磺酸(11)和甲醇(12)以与烃(13)逆流的方式进料。 粗产物醚作为甲磺酸(11)进料上方的液体侧流(25)除去,而消耗反应性支链单烯烃(24)的烃在顶部除去。 甲磺酸抑制甲醇相对于产物醚的蒸气压。

    Fluorgenic and chomogenic three-dimensional ionophores as selective
reagents for detecting ions in biological fluids
    5.
    发明授权
    Fluorgenic and chomogenic three-dimensional ionophores as selective reagents for detecting ions in biological fluids 失效
    荧光和显色三维离子载体作为检测生物液体中离子的选择性试剂

    公开(公告)号:US5439828A

    公开(公告)日:1995-08-08

    申请号:US621510

    申请日:1991-06-26

    摘要: Novel fluorogenic and chromogenic three-dimensional ionophores are provided which selectively bond ions such as potassium, sodium, and lithium, even in neutral aqueous or alcohol media. The novel ionophores comprise an "ion-recognizing system" fused to a "signal-moiety" through one or more heteroatoms having a non-bonded electron pair. The signal-moieties are selected from the group consisting of fused ring heterocyclics, fused aromatics, and subsituted aromatics having at least one nitro or azo moiety. The ion-recognizing system is a three-dimensional cryptand. The ionophores are ideal for the selective and direct termination of ions in biological or environmental samples and the like.

    摘要翻译: 提供了新的荧光和显色三维离子电极,其选择性地结合例如钾,钠和锂的离子,甚至在中性水或醇介质中。 新型离子载体包含通过一个或多个具有非键合电子对的杂原子与“信号部分”融合的“离子识别系统”。 信号部分选自稠环杂环,稠合芳族化合物和具有至少一个硝基或偶氮部分的取代的芳族化合物。 离子识别系统是一个三维密码。 离子载体是在生物或环境样品等中选择性和直接终止离子的理想选择。

    Ion selective fluorogenic reagents
    6.
    发明授权
    Ion selective fluorogenic reagents 失效
    离子选择性荧光试剂

    公开(公告)号:US5136033A

    公开(公告)日:1992-08-04

    申请号:US88370

    申请日:1987-08-24

    摘要: Novel fluorogenic ionophores have been synthesized which selectively bind ions such as potassium and sodium, even in neutral aqueous and alcoholic media and respond to such binding by fluorescence quenching or enhancement. These ionophores are ideal for the selective and direct determination of ions in biological or environmental samples and the like. The ionophores are also suitable for incorporation into fiber optic-based sensors for the continuous in vivo or in vitro monitoring of metal ions in blood or other biological fluids.

    摘要翻译: 已经合成了新的荧光离子载体,其选择性地结合离子如钾和钠,甚至在中性水和醇介质中,并通过荧光猝灭或增强反应这种结合。 这些离子载体对于生物或环境样品中的离子的选择性和直接测定等是理想的。 离子载体也适用于掺入基于光纤的传感器中,用于连续体内或体外监测血液或其他生物流体中的金属离子。

    Autoxidative cleavage of ketones in the presence of pulverized alkali
metal hydroxide
    7.
    发明授权
    Autoxidative cleavage of ketones in the presence of pulverized alkali metal hydroxide 失效
    在粉碎的碱金属氢氧化物存在下自动裂解酮

    公开(公告)号:US4510321A

    公开(公告)日:1985-04-09

    申请号:US462295

    申请日:1983-01-31

    摘要: Processes for the autoxidative cleavage of selected ketones such as C.sub.4 -C.sub.10 cycloalkanones having at least one hydrogen or at least one R group on a carbon alpha to the carbonyl carbon or aryl alkyl ketones having the formula III ##STR1## comprising contacting a liquid phase comprising said ketone with elemental oxygen gas, preferably air, in the presence of a pulverized alkali metal hydroxide at a temperature of no more than 50.degree. C. for a time sufficient to produce an oxidized product are disclosed. Preferred cycloalkanones, 2-alkyl- and 2-arylcyclohexanone are autoxidized in pulverized sodium hydroxide/dimethoxyethane to produce 6-alkyl- or 6-aryl-6-oxohexanoic acids, respectively.

    摘要翻译: 所选择的酮类如羰基碳或碳原子上具有至少一个氢或至少一个R基团的C 4 -C 10环烷酮的自动氧化裂解方法,其具有式III的化合物,其包括将液相 在不超过50℃的温度下,在粉碎的碱金属氢氧化物的存在下,将所述酮与元素氧气(优选空气)一起包含足以产生氧化产物的时间。 优选的环烷酮,2-烷基 - 和2-芳基环己酮在粉碎的氢氧化钠/二甲氧基乙烷中自动氧化,分别产生6-烷基 - 或6-芳基-6-氧代己酸。

    Regioselective isomerization at carbon atom vicinal to doubly bonded
tertiary carbon atom by sulfur dioxide catalysis
    9.
    发明授权
    Regioselective isomerization at carbon atom vicinal to doubly bonded tertiary carbon atom by sulfur dioxide catalysis 失效
    通过二氧化硫催化与双键连接的叔碳原子连接的碳原子上的区域选择性异构化

    公开(公告)号:US4190612A

    公开(公告)日:1980-02-26

    申请号:US862313

    申请日:1977-12-20

    CPC分类号: C07C5/25 Y10S585/941

    摘要: Beta pinene is converted to alpha pinene in liquid sulfur dioxide. The process is a regioselective isomerization of organic compounds having a carbon-carbon double bond at a tertiary carbon atom, by sulfur dioxide-induced allylic rearrangement of a hydrogen atom and/or replacement of a proton in the allylic position by a deuteron. The organic compound is contacted with sulfur dioxide at temperatures between about 0.degree. and 70.degree. C. for a time sufficient to effect such isomerization to a more stable isomer; and if deuteration is to take place D.sub.2 O is provided in the solution.

    摘要翻译: β蒎烯在液态二氧化硫中转化成α蒎烯。 该方法是在叔碳原子上具有碳 - 碳双键的有机化合物的区域选择性异构化,二氧化硫诱导的氢原子的烯丙基重排和/或通过氘核替代烯丙基位置的质子。 有机化合物在约0℃至70℃之间的温度下与二氧化硫接触足够的时间以使其异构化成更稳定的异构体; 并且如果要进行氘代,溶液中将提供D2O。

    Oxidation of organic compounds having benzylic carbon atoms in water
    10.
    发明授权
    Oxidation of organic compounds having benzylic carbon atoms in water 失效
    在水中氧化具有苄基碳原子的有机化合物

    公开(公告)号:US5171880A

    公开(公告)日:1992-12-15

    申请号:US669719

    申请日:1991-03-15

    IPC分类号: C07C45/28 C07C51/305

    CPC分类号: C07C51/305 C07C45/28

    摘要: The present invention is directed to a process of oxidizing organic compounds having benzylic carbon atoms. The process of this invention comprises reacting an organic compound having one or more benzylic carbon atoms with an effective amount of an effective oxidizing agent in water at a temperature equal to or greater than about 350.degree. C. and at a pressure equal to or greater than about 175 atmospheres, wherein said agent is selected from the group consisting of a combination of one or more bases and one or more of elemental sulfur, an oxidized form of elemental sulfur and/or an organic or inorganic sulfur containing compounds capable of forming elemental sulfur, said oxidized forms or a combination thereof in situ under process conditions, and organic or inorganic compounds which form one or more bases and elemental sulfur, oxidized forms of sulfur or a combination thereof in situ under process conditions.

    摘要翻译: 本发明涉及氧化具有苄基碳原子的有机化合物的方法。 本发明的方法包括使具有一个或多个苄基碳原子的有机化合物与有效量的有效氧化剂在水中等于或大于约350℃的温度和等于或大于 约175个大气压,其中所述试剂选自一种或多种碱和一种或多种元素硫,氧化形式的元素硫和/或能够形成元素硫的有机或无机含硫化合物的组合 ,在工艺条件下原位地表示氧化形式或其组合,以及在工艺条件下原位形成一种或多种碱和元素硫,氧化形式的硫或其组合的有机或无机化合物。