Highly Enantioselective Synthesis of Indolines: Asymmetric Hydrogenation at Ambient Temperature and Pressure with Cationic Ruthenium Diamine Catalysts
作者:Zhusheng Yang、Fei Chen、Yanmei He、Nianfa Yang、Qing-Hua Fan
DOI:10.1002/anie.201607890
日期:2016.10.24
asymmetric hydrogenation of 1H‐indoles and 3H‐indoles at ambient temperature and pressure, catalyzed by chiral phosphine‐free cationic ruthenium complexes, has been developed. Excellent enantio‐ and diastereoselectivities (up to >99 % ee, >20:1 d.r.) were obtained for a wide range of indolederivatives, including unprotected 2‐substituted and 2,3‐disubstituted 1H‐indoles, as well as 2‐alkyl‐ and 2‐aryl‐substituted
Manganese‐Catalyzed Asymmetric Hydrogenation of
<i>3H</i>
‐Indoles
作者:Chenguang Liu、Mingyang Wang、Yihan Xu、Yibiao Li、Qiang Liu
DOI:10.1002/anie.202202814
日期:2022.5.9
General and efficient asymmetric hydrogenation (AH) of 3H-indoles has been realized using a well-defined chiral pincer manganese catalyst, with up to 99 % ee and a record TON of 72 350 in an earth-abundant metal-catalyzed AH reaction.
使用定义明确的手性钳形锰催化剂实现了3H-吲哚的通用且有效的不对称氢化 (AH),在地球资源丰富的金属催化 AH 反应中,ee 高达 99%,创纪录的 TON 为 72 350。
Organic light-emitting diode having alleviated luminance reduction in low dynamic range
申请人:SFC CO., LTD.
公开号:US11251378B2
公开(公告)日:2022-02-15
The present disclosure relates to an organic light-emitting diode which can operate at a low voltage with high efficiency and exhibits the effect of having an alleviated luminance reduction rate in a low dynamic range. More particularly, the organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and a charge balance control layer arranged sequentially between the first and the second electrode, wherein the light-emitting layer includes at least one of amine derivative compounds represented by the following Chemical Formula A and the charge balance control layer includes at least one of anthracene derivative compounds represented by the following Chemical Formula B or C. The structures of Chemical Formulas A, B, and C are as defined in the specification.