endergonic formation of the intermediate complex of nitrobiarenes and PPh3, which corresponds with experimental findings regarding reactiontemperature. The robust synthetic capacity of the photoredox Cadogan reaction systems has been demonstrated by the viable productivity of a broad range of carbazoles and related N-heterocycles with good tolerance of various functionalities.
已发现可见光驱动的光化学卡多根型环化。发现有机 DA 型光敏剂 4CzIPN 是将能量从光子转移到瞬态中间体的有效介质,该中间体打破了卡多根反应中的脱氧壁垒,并使无温和金属的咔唑和相关杂环成为可能。DFT 计算结果表明硝基双芳烃和 PPh 3的中间体复合物的温和吸能形成,这与关于反应温度的实验结果一致。光氧化还原 Cadogan 反应系统的强大合成能力已通过广泛范围的咔唑和相关N-杂环的可行生产力得到证明,这些N-杂环对各种官能团具有良好的耐受性。
Radical annulations and cyclisations with isonitriles: the fate of the intermediate imidoyl and cyclohexadienyl radicals
novel cyclopenta-fused quinoxaline through addition of 2-cyanoprop-2-yl radical to the alkyne; the resulting vinyl radical attacks isonitrile to afford an imidoyl radical, which gives rise to a tandem 5-exo, 6-endo cyclisation. The whole process entails a new example of a rare 4 + 1 radical annulation. The cyanopropyl radical can also attack isonitrile to yield small amounts of quinolines deriving
HETEROCYCLIC COMPOUND, LIGHT-EMITTING DEVICE INCLUDING HETEROCYCLIC COMPOUND, AND ELECTRONIC APPARATUS INCLUDING LIGHT-EMITTING DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20210376262A1
公开(公告)日:2021-12-02
A heterocyclic compound represented by Formula 1:
wherein, in Formula 1, Ar
1
to Ar
4
, Ar
4
, Ar
11
, and Ar
12
are each, independently from one another, as defined herein.
LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE LIGHT-EMITTING DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20220020939A1
公开(公告)日:2022-01-20
The disclosure relates to a light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode and including an emission layer. The interlayer includes a first compound represented by Formula 1 of the specification, a second compound represented by Formula 2 of the specification, and a third compound, which is a blue phosphorescent compound. The disclosure also relates to an electronic apparatus including the light-emitting device.