[EN] ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME [FR] COMPOSÉS ÉLECTROLUMINESCENTS ORGANIQUES ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE LES COMPRENANT
substitution even in the presence of strong electron‐donating groups and enables de‐tert‐butylation required for the complete annulation. Also demonstrated is the applicability of the method to introduce five‐, six‐, and seven‐membered rings containing oxygen, whereas multiple annulations also open up a short synthetic path to ladder‐type O‐heteroacenes and oligodibenzofurans.
Heteroaromatic annulation studies on 10,11-dihydro-11-[bis(methylthio)methylene]dibenzoxepin-10-one: a facile access to novel dibenzoxepino[4,5]-fused heterocycles
10,11-Dihydro-11-[bis(methylthio)methylene]dibenzoxepin-10-one has been shown to be a useful three carbon synthon for the efficient regiospecific annulation of a variety of five- (pyrazoles, isoxazoles, thiophene, and γ-lactone) and six-membered (pyrimidines, pyridone and pyridines) heterocycles by cyclocondensation with heterobinucleophiles such as hydrazine, hydroxylamine, dimethylsulfonium methylide
Cu-Catalyzed Aromatic Metamorphosis of 3-Aminoindazoles
作者:Yao Zhou、Lu Lin、Ya Wang、Jun Zhu、Qiuling Song
DOI:10.1021/acs.orglett.9b02933
日期:2019.9.20
We present a novel Cu-catalyzed aromaticmetamorphosis of 3-aminoindazoles via oxidative cleavage of two C-N bonds of 3-aminoindazoles. This unprecedented reactivity of 3-aminoindazoles allows one to forge diverse nitrile-containing triphenylenes in decent yields via generation of the cyano group in situ. The current study reveals that 3-aminoindazoles could be harnessed as radical precursors via oxidative
[EN] ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME<br/>[FR] COMPOSÉ ÉLECTROLUMINESCENT ORGANIQUE ET DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE COMPRENANT CE COMPOSÉ
申请人:ROHM & HAAS ELECT MATERIALS KOREA LTD
公开号:WO2017099360A1
公开(公告)日:2017-06-15
The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having low driving voltage and/or excellent power efficiency and/or improved driving lifespan.
COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME
申请人:NICHEM FINE TECHNOLOGY CO., LTD.
公开号:US20170279050A1
公开(公告)日:2017-09-28
Provided are a novel compound and an organic electronic device using the same. The novel compound is represented by the following Formula (I):
wherein X
1
and X
2
are each independently C(R
a
), and the two (R
a
)s are the same or different; X
3
and X
4
are each independently C(R
b
), and the two (R
b
)s are the same or different; the two (R
a
)s are joined together to form an aryl ring and the two (R
b
)s are joined together to form an oxygen-containing heteroaryl ring, a sulfur-containing heteroaryl ring, or a polycyclic aromatic ring;
wherein Y
1
and Y
2
are the same or different; Y
1
and Y
2
are each represented by NR′R″; R′ and R″ are the same or different; at least one of R′ and R″ is an aryl group.