Iridium-Catalyzed Regioselective C(sp<sup>3</sup>)–H Silylation of 4-Alkylpyridines at the Benzylic Position with Hydrosilanes Leading to 4-(1-Silylalkyl)pyridines
作者:Yoshiya Fukumoto、Masaya Hirano、Naoto Chatani
DOI:10.1021/acscatal.7b00539
日期:2017.5.5
The regioselective silylation of C(sp3)–H bonds at the benzylic position in 4-alkylpyridines with hydrosilanes is described. The reaction proceeds in the presence of a catalytic amount of Ir4(CO)12 or Ir(acac)(CO)2, which possess CO as a ligand, or [Ir(OMe)(cod)]2 under 1 atm of CO. After optimizing the reaction conditions, by using other pyridine derivatives, such as 3,5-dimethylpyridine, as additives
CHATTERJEA, J. N.;SHAW, S. C.;PRASAD, Y.;SINGH, R. P., J. INDIAN CHEM. SOC., 1985, 61, N 11, 1028-1031
作者:CHATTERJEA, J. N.、SHAW, S. C.、PRASAD, Y.、SINGH, R. P.
DOI:——
日期:——
ORGANIC LIGHT-EMITTING DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20160111664A1
公开(公告)日:2016-04-21
An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7:
Ar
11
(L
11
)
a11
-(R
11
)
b11
]
n11
Formula 1
Ar
21
(L
21
)
a21
-(R
21
)
b21
]
n21
Formula 2
M(L
1
)
n71
(L
2
)
n72
. Formula 7
The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.