Method of preparation of bis-quinolines
    171.
    发明授权
    Method of preparation of bis-quinolines 失效
    双喹啉的制备方法

    公开(公告)号:US5532374A

    公开(公告)日:1996-07-02

    申请号:US467462

    申请日:1995-06-06

    CPC classification number: C07D215/12

    Abstract: Methods are provided for preparing bis-quinoline compounds, which include the steps of (1) condensing an aromatic 2-amino carbonyl compound and a methylene ketone compound to form an intermediate comprising a substituted quinoline having one chloro, one bromo, or one iodo substituent, followed by (2) reductive coupling of the quinoline, without its prior isolation or purification, using a transition metal catalyst, to thereby form the bis-quinoline compound.

    Abstract translation: 提供了制备双喹啉化合物的方法,其包括以下步骤:(1)将芳族2-氨基羰基化合物和亚甲基酮化合物缩合形成包含具有一个氯,一溴或一个碘取代基的取代喹啉的中​​间体 ,然后使用过渡金属催化剂(2)喹啉的还原偶联,而不用事先分离或纯化,从而形成双喹啉化合物。

    HEATING PAD WITHOUT ELECTRIC FIELD RADIATION
    177.
    发明公开

    公开(公告)号:US20240342467A1

    公开(公告)日:2024-10-17

    申请号:US18298919

    申请日:2023-04-11

    Applicant: Ying Wang

    Inventor: Ying Wang

    CPC classification number: A61N1/16 A61F7/02 A61F2007/0071 A61F2007/0244

    Abstract: A heating pad without electric field radiation is disclosed. The heating pad without electric field radiation includes a heating wire, a shielding layer, a cotton layer and flannel. The shielding layer is disposed on the heating wire, and the shielding layer is symmetrically provided with two groups. The cotton layer is disposed on the shield layer, the cotton layer is symmetrically provided with two groups. The flannel is disposed on the cotton layer, and the flannel is symmetrically provided with two groups. The present disclosure relates to the field of heating pads, and specifically to a heating pad without electric field radiation.

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