Method for preparing ketones
    1.
    发明授权
    Method for preparing ketones 失效
    制备酮的方法

    公开(公告)号:US06353139B1

    公开(公告)日:2002-03-05

    申请号:US09792240

    申请日:2001-02-26

    IPC分类号: C07C4569

    CPC分类号: C07C45/00 C07F7/083

    摘要: A method for preparing ketones has advantages of improving yields and reducing the time of the reactions due to high efficiency of catalysts. Ketones are prepared by reacting an aliphatic or an aromatic aldehyde with a vinyl olefin having an aliphatic or aromatic alkyl moiety in the presence of a transition metal catalyst, 2-aminopyridine catalyst, a primary amine and an acid, as catalysts and additives.

    摘要翻译: 制备酮的方法具有提高产率和减少催化剂效率高的反应时间的优点。 酮是通过在过渡金属催化剂,2-氨基吡啶催化剂,伯胺和酸作为催化剂和添加剂的存在下使脂族或芳族醛与具有脂族或芳族烷基部分的乙烯基烯烃反应来制备的。

    Ortho-alkylation method of aromatic ketones
    2.
    发明授权
    Ortho-alkylation method of aromatic ketones 失效
    芳香酮的正烷基化方法

    公开(公告)号:US06291716B1

    公开(公告)日:2001-09-18

    申请号:US09792108

    申请日:2001-02-26

    IPC分类号: C07C4568

    摘要: An ortho-alkylation method of an aromatic ketone. In the method, as starting materials, the aromatic ketone is reacted with aliphatic or aromatic alkyl moiety-containing olefins in the presence of a primary amine and a transition metal catalyst as reaction catalysts, or ketimines resulting from a reaction of aromatic ketones with a primary amine are reacted with aliphatic or aromatic alkyl moiety-containing olefins in the presence of a transition metal catalyst, thereby introducing the alkyl moiety to the ortho-position of the aromatic ketone.

    摘要翻译: 芳香酮的邻位烷基化方法。 在该方法中,作为起始原料,芳族酮在含有伯胺和过渡金属催化剂作为反应催化剂的存在下与含脂肪族或芳香族含烷基部分的烯烃反应,或由芳香族酮与伯 胺在与过渡金属催化剂存在下与脂族或芳族含烷基部分的烯烃反应,从而将烷基部分引入芳族酮的邻位。

    Method for the preparation of ketones
    3.
    发明授权
    Method for the preparation of ketones 失效
    酮的制备方法

    公开(公告)号:US06252118B1

    公开(公告)日:2001-06-26

    申请号:US09579423

    申请日:2000-05-26

    申请人: Chul Ho Jun Hyuk Lee

    发明人: Chul Ho Jun Hyuk Lee

    IPC分类号: C07C4569

    摘要: A method for preparation of a new ketone from a preexisting ketone is very advantageous in terms of production cost and yield. A reactant mixture consisting of a ketone containing &bgr;-hydrogen relative to the aldehyde group and a vinyl olefin or internal olefin having an aliphatic or aromatic alkyl moiety is allowed to react at approximately 100-180° C. for at least 6 hours in the presence of a rhodium or iridium transition metal catalyst and a 2-aminopyridine derivative.

    摘要翻译: 从预先存在的酮制备新酮的方法在生产成本和产率方面是非常有利的。 由含有相对于醛基的β-氢的酮和具有脂族或芳族烷基部分的乙烯基烯烃或内烯烃组成的反应物混合物在约100-180℃下在存在下反应至少6小时 的铑或铱过渡金属催化剂和2-氨基吡啶衍生物。