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    Method for the preparation of optically active allylic esters
    1.
    发明授权
    Method for the preparation of optically active allylic esters 失效
    光学活性烯丙基酯的制备方法

    公开(公告)号：US4069385A

    公开(公告)日：1978-01-17

    申请号：US692510

    申请日：1976-06-03

    申请人： Masashi Araki ,  Tsuneyuki Nagase

    发明人： Masashi Araki ,  Tsuneyuki Nagase

    IPC分类号： C07C67/00 ,  C07C69/145 ,  C07C69/155 ,  C07C69/24 ,  C07C69/78 ,  C07C69/83

    CPC分类号： C07C67/05 ,  C07C2101/10 ,  C07C2101/16

    摘要： In the preparation of olefin derivatives having an ester group at the allylic position (hereinafter referred to as "allylic ester(s)") which comprises reacting an olefin having at least one hydrogen atom at the allylic position and which will produce an allylic ester having an asymmetric carbon atom with an organic peroxide in the presence of a copper catalyst, a method for producing optically active allylic esters characterized by using, as the copper catalyst, an optically active copper complex derived from an optically active compound selected from the group consisting of Schiff's bases of the formula: ##STR1## and amino acids of the formula: ##STR2## wherein R.sub.0 is an optically active alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, X and Y are each a hydrogen atom, an alkyl, cycloalkyl, aralkyl or aryl group, or a substituent having a hetero atom, R.sub.1 and R.sub.2 are each a hydrogen atom, or an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, R.sub.3 is an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, or when R.sub.3 is linked together with R.sub.2, they form a divalent hydrocarbon group including or not including a hetero atom and which is optionally substituted with a substituent having a hetero atom, and the asterisk (*) indicates an asymmetric carbon atom.

    摘要翻译： 在烯丙基位具有酯基的烯烃衍生物的制备（以下称为“烯丙基酯”）中，其包括在烯丙基位置使具有至少一个氢原子的烯烃反应，并产生具有 在铜催化剂存在下使用有机过氧化物的不对称碳原子，制备光学活性烯丙基酯的方法，其特征在于使用衍生自光学活性化合物的光学活性铜络合物，所述旋光活性铜络合物选自 希夫的下式：其中R 0是可以含有不饱和键和/或取代基的光学活性烷基，环烷基，芳烷基或芳基的式（I）的氨基酸和下式的氨基酸： 具有杂原子，X和Y各自为氢原子，烷基，环烷基，芳烷基或芳基或具有杂原子的取代基，R 1和R 2各自为氢原子或烷基， 可以含有不饱和键和/或具有杂原子的取代基的烷基，芳烷基或芳基，R3是可以含有不饱和键和/或具有杂原子的取代基的烷基，环烷基，芳烷基或芳基，或 当R3与R2连接在一起时，它们形成包含或不包括杂原子的二价烃基，其任选被具有杂原子的取代基取代，并且星号（*）表示不对称碳原子。

    Selective hydrogenation method for hydrocarbons
    3.
    发明授权
    Selective hydrogenation method for hydrocarbons 失效
    碳氢化合物选择性加氢法

    公开(公告)号：US4469907A

    公开(公告)日：1984-09-04

    申请号：US471401

    申请日：1983-03-02

    申请人： Masashi Araki ,  Yasuhiko Higashio

    发明人： Masashi Araki ,  Yasuhiko Higashio

    IPC分类号： C10G45/32 ,  C07C5/03 ,  C07C5/08

    CPC分类号： C07C5/08 ,  C07C5/03 ,  C07C2523/44

    摘要： A selective hydrogenation method for highly saturated hydrocarbons by bringing a mixture of hydrocarbons of low hydrogenation degree having 4 or more carbon atoms containing the highly saturated hydrocarbons in the presence of a catalyst using a fixed bed reaction vessel, which comprises supplying a hydrogen gas in a state of plural splits along the flow direction of the fixed bed reaction vessel is disclosed. In accordance with this mehtod, only the highly unsaturated hydrocarbons are selectively hydrogenated without being accompanied by isomerization of olefins.

    摘要翻译： 在使用固定床反应容器的催化剂存在下，使含有高饱和烃的碳原子数为4以下的低氢化度的烃的混合物进行高饱和烃的选择性氢化处理，其中包括在 公开了沿着固定床反应容器的流动方向的多个分割状态。 根据这个说明，只有高度不饱和的烃被选择性氢化而不伴随着烯烃的异构化。

    Process for producing methyl tertiary butyl ether
    4.
    发明授权
    Process for producing methyl tertiary butyl ether 失效
    甲基叔丁基醚的制备方法

    公开(公告)号：US4665237A

    公开(公告)日：1987-05-12

    申请号：US871215

    申请日：1986-06-05

    申请人： Shinichi Arakawa ,  Masashi Araki ,  Masaaki Okamura

    发明人： Shinichi Arakawa ,  Masashi Araki ,  Masaaki Okamura

    IPC分类号： C07C43/04 ,  B01J31/08 ,  C07B61/00 ,  C07C29/86 ,  C07C41/00 ,  C07C41/06 ,  C07C41/38 ,  C07C41/42 ,  C07C67/00

    CPC分类号： C07C29/86 ,  C07C41/06 ,  C07C41/38 ,  C07C41/42 ,  Y02P20/52

    摘要： A process for producing methyl tertiary butyl ether is disclosed, comprising reacting isobutylene and methanol using a hydrocarbon mixture of 4 carbon atoms containing isobutylene and methanol as starting materials in a reaction zone containing an acidic ion exchange resin and distilling the resulting reaction mixture in a distillation column connected to the reaction zone to separate methyl tertiary butyl ether from the unreacted hydrocarbon mixture of 4 carbon atoms, wherein a mixture of the hydrocarbon mixture of 4 carbon atoms as a distillate from a top of the distillation column and methanol as a distillate by azeotropy is contacted with water in a second extraction step to wash and extract methanol with water, and the water containing the extracted methanol is then contacted with said hdyrocarbon mixture of 4 carbon atoms containing isobutylene which is fed to the reaction zone in a first extraction step in an upstream of the reaction zone to thereby transfer a part or a large portion of the methanol in the methanol-containing water into a hydrocarbon mixture phase by reverse extraction. By the process, methanol in the reaction mixture can be recovered simply and at low cost.

    摘要翻译： 公开了一种生产甲基叔丁基醚的方法，包括使用含有异丁烯和甲醇的4个碳原子的烃混合物作为起始原料，在含有酸性离子交换树脂的反应区中使异丁烯和甲醇反应，并将所得反应混合物蒸馏 柱连接到反应区，以将甲基叔丁基醚与4个碳原子的未反应的烃混合物分离，其中4个碳原子的烃混合物的混合物作为蒸馏塔顶馏出物的馏出物和通过共沸的甲醇作为馏出物 在第二提取步骤中与水接触以用水洗涤和提取甲醇，然后将含有提取的甲醇的水与所述含有异丁烯的4个碳原子的混合物接触，所述异丁烯在第一提取步骤中进料到反应区 在反应区的上游，从而转移一部分或大的po 通过反萃取将含甲醇的水中的甲醇转化为烃混合物相。 通过该方法，可以简单且低成本地回收反应混合物中的甲醇。