利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

133 条记录 (耗时 0.029 秒)

    Organic electroluminescent device
    1.
    发明授权
    Organic electroluminescent device 有权

    公开(公告)号：US10689568B2

    公开(公告)日：2020-06-23

    申请号：US16459484

    申请日：2019-07-01

    申请人： Samsung Display Co., Ltd.

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

    IPC分类号： C09K11/02 ,  H01L51/50 ,  C07D403/10 ,  C07C211/61 ,  C07C211/43 ,  C07C211/44 ,  C07C211/49 ,  C07D401/14 ,  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 the preparation of pyrazole carboxylic acid amides
    3.
    发明授权
    Process for the preparation of pyrazole carboxylic acid amides 有权
    制备吡唑羧酸酰胺的方法

    公开(公告)号：US08450499B2

    公开(公告)日：2013-05-28

    申请号：US13642512

    申请日：2011-04-14

    申请人： Raphael Dumeunier ,  Hans Tobler

    发明人： Raphael Dumeunier ,  Hans Tobler

    IPC分类号： C07D231/10 ,  C07D303/02 ,  C07C211/43

    CPC分类号： C07D231/14 ,  C07D303/08 ,  C07D303/36

    摘要： The invention relates to a process for the preparation of formula (I), which process comprises a) reacting the compound (II), with cyclopentadiene to (III); b) reacting this compound in the presence of an oxidant to the compound of formula (IV); c) hydrogenating this compound in the presence of a metal catalyst and an inert solvent under hydrogen atmosphere to the compound of formula (V); d) reacting this compound in the presence of a Brönsted acid followed by a reducing agent to the compound of formula (VI); e) reacting VI with a compound (VII), in the presence of a base to a compound of formula (VIII); f) converting the compound of formula VIII in the presence of an oxidizing agent to the compound of formula (IX); and g) reacting the compound of formula IX in the presence of triphenylphosphane/carbon tetrachloride or riphenylphosphane/bromotrichloromethane to the compound of formula I.

    摘要翻译： 本发明涉及制备式（I）的方法，该方法包括：a）使化合物（II）与环戊二烯反应至（III）; b）在氧化剂存在下使该化合物与式（Ⅳ）化合物反应; c）在金属催化剂和惰性溶剂的存在下，在氢气氛下将该化合物氢化成式（V）化合物; d）在布朗斯台德酸的存在下将该化合物与式（VI）化合物的还原剂反应; e）使VI与化合物（VII）在碱的存在下与式（VIII）的化合物反应; f）将式VIII化合物在氧化剂存在下转化为式（Ⅸ）化合物; 和g）在三苯基膦/四氯化碳或联苯基膦/溴三氯甲烷存在下将式IX化合物与式I化合物反应。