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    Process for producing 2-hydroxy-4-methyltetrahydropyran
    2.
    发明授权
    Process for producing 2-hydroxy-4-methyltetrahydropyran 失效
    2-羟基-4-甲基四氢吡喃的制备方法

    公开(公告)号：US4808737A

    公开(公告)日：1989-02-28

    申请号：US921383

    申请日：1986-10-22

    Applicant: Noriaki Yoshimura ,  Yasuo Tokitoh

    Inventor： Noriaki Yoshimura ,  Yasuo Tokitoh

    IPC: B01J31/00 ,  B01J31/02 ,  B01J31/20 ,  B01J31/22 ,  B01J31/24 ,  B01J31/28 ,  C07B61/00 ,  C07D309/10

    CPC classification number: C07D309/10

    Abstract: The hydroformylation of 3-methyl-3-buten-1-ol with hydrogen and carbon monoxide, when carried out under relatively mild conditions, gives 2-hydroxy-4-methyltetrahydropyran (MHP) in high rate of reaction and in high selectivity even in a very low rhodium catalyst concentration. MHP is useful as a starting material for the production of 3-methyl-1,5-pentanediol and .beta.-methyl-.delta.-valerolactone which are in turn usable as raw materials for producing polyesters and polyurethanes. The process according to the invention can give such MHP advantageously from the industrial viewpoint and has very great industrial utility.

    Abstract translation: 当在相对温和的条件下进行时，3-甲基-3-丁烯-1-醇与氢气和一氧化碳的加氢甲酰化得到高反应速率的2-羟基-4-甲基四氢吡喃（MHP），甚至在高选择性下 极低的铑催化剂浓度。 MHP可用作生产3-甲基-1,5-戊二醇和β-甲基-Δ-戊内酯的原料，它们可用作生产聚酯和聚氨酯的原料。 根据本发明的方法可以从工业的角度有利地提供这样的MHP并具有非常好的工业实用性。

    Preparation of etherified polyoxyalkylene derivatives
    4.
    发明授权
    Preparation of etherified polyoxyalkylene derivatives 失效
    醚化的聚氧化烯衍生物的制备

    公开(公告)号：US4301083A

    公开(公告)日：1981-11-17

    申请号：US109065

    申请日：1980-01-02

    Applicant: Noriaki Yoshimura ,  Masuhiko Tamura

    Inventor： Noriaki Yoshimura ,  Masuhiko Tamura

    IPC: C07C41/16 ,  C07C43/11 ,  C07C43/184 ,  C07C43/235 ,  C07C41/00 ,  C09F5/00

    CPC classification number: C07C41/16 ,  C07C213/06 ,  C07C231/12 ,  C07C43/11 ,  C08G65/337

    Abstract: Polyoxyalkylene compounds having at least four oxyalkylene units and one or two terminal hydroxyl groups are etherified by reacting same with organic primary chlorides or bromides in the presence of an aqueous, at least 30% by weight solution of sodium or potassium hydroxide to produce the corresponding etherified polyoxyalkylene derivatives. The molar ratio of the organohalide to the hydroxyl group(s) of the polyoxyalkylene compound is at least 1.2, and the molar ratio of the alkali metal hydroxide to such hydroxyl group(s) is at least 1.

    Abstract translation: 具有至少四个氧化烯单元和一个或两个末端羟基的聚氧化烯化合物在含水，至少30重量％的氢氧化钠或氢氧化钾溶液的存在下，与有机一级氯化物或溴化物反应而醚化，产生相应的醚化 聚氧化烯衍生物。 有机卤化物与聚氧化烯化合物的羟基的摩尔比为1.2以上，碱金属氢氧化物与该羟基的摩尔比为1以上。

    Process for producing a higher carbonyl compound
    5.
    发明授权
    Process for producing a higher carbonyl compound 失效
    制备高级羰基化合物的方法

    公开(公告)号：US4271320A

    公开(公告)日：1981-06-02

    申请号：US71670

    申请日：1979-08-31

    Applicant: Yasuo Tokitoh ,  Noriaki Yoshimura ,  Masuhiko Tamura

    Inventor： Yasuo Tokitoh ,  Noriaki Yoshimura ,  Masuhiko Tamura

    IPC: C07C29/141 ,  C07C45/30 ,  C07C45/34 ,  C07C45/80 ,  C07C45/83 ,  C07C29/136 ,  C07C29/14 ,  C07C45/27 ,  C07C45/36

    CPC classification number: C07C45/80 ,  C07C29/141 ,  C07C45/30 ,  C07C45/34 ,  C07C45/83 ,  Y02P20/584

    Abstract: An industrially suitable process for producing a higher carbonyl compound by the oxidation of an olefinic compound having at least six carbon atoms is provided. Said improved process comprises oxidizing the olefinic compound in aqueous medium containing palladium or salt thereof and a copper salt in the presence of a specific water-soluble polyoxyalkylene compound in an amount of from about 1/4 to about 3 parts by weight per 1 part by weight of water contained in the reaction mixture. The improvement is demonstrated in terms of yield, selectivity, separation of the product, and recycle of the catalyst.

    Abstract translation: 提供了通过氧化具有至少6个碳原子的烯属化合物来生产高级羰基化合物的工业上合适的方法。 所述改进的方法包括在特定水溶性聚氧化烯化合物存在下，将含有钯或其盐和铜盐的水性介质中的烯烃化合物氧化为约1/3〜3重量份/ 1份/ 包含在反应混合物中的水的重量。 在产率，选择性，产物分离和催化剂循环方面证明了改进。

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