There is disclosed a method for producing a biaryl compound of formula (I):
1
wherein R
1
is the same or different and independently denotes a substituted or unsubstituted hydrocarbon group or the like, A and B denote an aromatic hydrocarbon ring having from 6 to 14 carbon atoms or the like, k and m independently denote an integer of from 0 to 5, and 1 denotes an integer of 1 or 2, which method is characterized by reacting an aromatic compound of formula (II):
2
wherein R
1
, k and l denote the same as defined above, and X
1
denotes a leaving group, with a Grignard reagent of formula (III):
3
(R
2
). 9MgX
2
(IIIg)
wherein R
2
, B, and m denote the same as defined above and X
2
denotes chlorine or the like, in the presence of a cyclic ether, or an acyclic ether having two or more ether oxygens in the molecule and a nickel catalyst.
[EN] MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES<br/>[FR] MATÉRIAUX POUR DISPOSITIFS ÉLECTROLUMINESCENTS ORGANIQUES
申请人:MERCK PATENT GMBH
公开号:WO2019101835A1
公开(公告)日:2019-05-31
The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
A process for preparing a substituted or unsubstituted 9,10-diaryl anthracene including reacting a substituted or unsubstituted anthracene with a halogenating agent to yield a halogenated anthracene, and reacting the halogenated anthracene with an aryl boronic acid or a boronic ester to yield the substituted or unsubstituted 9,1 0-diaryl anthracene is disclosed. An electroluminescent device comprising a light-emitting layer comprising the substituted or unsubstituted 9,10-diaryl anthracene is also disclosed.
There are disclosed a process for producing a coupling compound of formula (1):
(Y—)
(n-1)
R
1
—R
2
—(R
1
)
(n′-1)
(1),
wherein R
1
and R
2
independently represent
a substituted or unsubstituted aryl group,
which process is characterized by reacting
an unsaturated organic compound of formula (2):
n
′(R
1
X
1
n
) (2)
wherein n, n′, and R
1
are the same as defined above, and
X
1
is the same or different and independently represents a leaving group and bonded with a sp2 carbon atom of R
1
group,
with a boron compound of formula (3):
m
{R
2
(BX
2
2
)
n′
} (3)
wherein R
2
and n′ are the same as defined above,
X
2
represents a hydroxy group, an alkoxy group, in the presence of a catalyst containing
(A) a nickel compound, and
(B) a nitrogen-containing cyclic compound, and the catalyst.
This invention relates to compositions and electroluminescent (EL) devices that have enhanced performance as a result of a novel class of anthracene derivatives used as host materials for a full range of color dopands. When using coumarin derivatives as color dopands in the anthracene derivatives in an EL device, the device performs a desirable light emitting efficiency and durability. The performance of the EL device can be further improved by using benazole derivatives as the electron transporting layer. The organic EL device of the present invention is useful in preparing display devices.