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    Organic electroluminescent device
    5.
    发明授权
    Organic electroluminescent device 有权

    公开(公告)号：US10385262B2

    公开(公告)日：2019-08-20

    申请号：US16233058

    申请日：2018-12-26

    申请人： Samsung Display Co., Ltd.

    发明人： Toshiyuki Matsuura ,  Hiroaki Itoi ,  Naoya Sakamoto ,  Nobutaka Akashi

    IPC分类号： C09K11/00 ,  C09K11/02 ,  C07D401/14 ,  C07D403/10 ,  C07C211/44 ,  C07C211/49 ,  C07C211/43 ,  C07C211/61 ,  H01L51/50 ,  H01L51/00

    摘要： An organic electroluminescent device of which emission life may be improved. The organic electroluminescent device includes an anode, an emission layer, and an anode-side hole transport layer provided between the anode and the emission layer and including an anode-side hole transport material. An electron accepting material is doped in the anode-side hole transport layer. An intermediate hole transport material layer is provided between the anode-side hole transport layer and the emission layer and includes an intermediate hole transport material, and an emission layer-side hole transport layer is provided between the intermediate hole transport material layer and the emission layer and adjacent to the emission layer. The emission layer-side hole transport layer includes an emission layer-side hole transport material represented by the following Formula 1.

    Process for preparation of 1,5-diaminonaphthalenes
    10.
    发明申请
    Process for preparation of 1,5-diaminonaphthalenes 失效
    制备1,5-二氨基萘的方法

    公开(公告)号：US20030176722A1

    公开(公告)日：2003-09-18

    申请号：US10312852

    申请日：2003-01-02

    发明人： Satoshi Inoki ,  Yoshio Motoyama

    IPC分类号： C07C255/42 ,  C07C229/38 ,  C07C211/49

    CPC分类号： C07C209/52 ,  C07C201/12 ,  C07C209/36 ,  C07C209/40 ,  C07C209/68 ,  C07C211/58 ,  C07C249/02 ,  C07C249/08 ,  C07C2602/10 ,  C07C251/44 ,  C07C251/20 ,  C07C205/06 ,  C07C205/45 ,  C07C205/56

    摘要： In a process where an ortho-alkylnitrobenzene derivative and a vinyl compound as starting materials are used to prepare a 1,5-diaminonaphthalene derivative via a 4-(2-nitrobenzene)propane derivative and a 5-nitro-1-tetralone derivative, the ortho-alkylnitrobenzene derivative and a vinyl compound having an electron withdrawing group such as an acrylonitrile derivative and an acrylate may be reacted in the presence of a base to provide an aromatic nitro compound. An aromatic nitro compound such as 4-(2-nitrobenzene)butanonitrile thus obtained may be cyclized to safely, cost-effectively and selectively provide a 5-nitro-1-tetralone derivative without forming any isomer. Furthermore, from the 5-nitro-1-tetralone derivative, a 1,5-diaminonaphthalene derivative may be prepared without forming any isomer.

    摘要翻译： 在使用原烷基硝基苯衍生物和乙烯基化合物作为原料的方法中，通过4-（2-硝基苯）丙烷衍生物和5-硝基-1-四氢萘酮衍生物制备1,5-二氨基萘衍生物， 正烷基硝基苯衍生物和具有吸电子基团的乙烯基化合物如丙烯腈衍生物和丙烯酸酯可以在碱的存在下反应以提供芳族硝基化合物。 如此获得的芳族硝基化合物如4-（2-硝基苯）丁腈可以环化以安全，成本有效地选择性地提供5-硝基-1-四氢萘酮衍生物而不形成任何异构体。 此外，从5-硝基-1-四氢萘酮衍生物可以制备1,5-二氨基萘衍生物而不形成任何异构体。