Metal-Free Borane-Catalyzed Highly Stereoselective Hydrogenation of Pyridines
摘要:
A metal-free direct hydrogenation of pyridines was successfully realized by using homogeneous borane catalysts generated from alkenes and HB(C6F5)(2) via in situ hydroboration. The reaction affords a broad range of piperidines in high yields with excellent cis stereoselectivities.
ORGANIC COMPOUND, CHARGE TRANSPORT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Iida Koichiro
公开号:US20090021146A1
公开(公告)日:2009-01-22
An organic compound is represented by following Formula (I):
wherein Cz
1
and Cz
2
may be the same as or different from each other and each represent a carbazolyl group; Q
1
and Q
2
may be the same as or different from each other and each represent a direct bond or an arbitrary linkage group; and Cz
1
, Cz
2
, Q
1
, Q
2
, Ring B
1
and Ring B
2
may each be substituted. The organic compound and charge transporting material show both excellent hole transporting ability and excellent electron transporting ability and have satisfactory durability against electric oxidation/reduction and a high triplet excitation level. An organic electroluminescent device using the organic compound emits light with a high efficiency and is highly stably driven.
MONOAMINE COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Yabe Masayoshi
公开号:US20090230846A1
公开(公告)日:2009-09-17
The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency.
An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I):
wherein R
1
to R
9
represent a hydrogen atom, an aryl group, or an alkyl group; R
1
to R
9
may be the same or different from each other; and R
1
to R
9
may further have an aryl group or an alkyl group as a substituent in the case where R
1
to R
9
are an aryl group or an alkyl group.
ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Igarashi Tatsuya
公开号:US20100026174A1
公开(公告)日:2010-02-04
An organic electroluminescent device is provided and includes: a pair of electrodes; and at least one organic layer between the pair of electrodes, the at least one organic layer including a light-emitting layer. The at least one organic layer includes at least one layer containing an indole derivative represented by formula (1), and the light-emitting layer includes a platinum complex phosphorescent material having a tetradentate ligand.
R
101
, R
102
, R
103
, R
104
, R
105
, R
106
and R
107
each independently represents a hydrogen atom or a substituent, provided that R
102
and R
103
are not bonded to each other to form an aromatic condensed ring.