Palladium-catalyzed double arylations of terminal olefins in acetic acid
作者:Daichao Xu、Chunxin Lu、Wanzhi Chen
DOI:10.1016/j.tet.2011.12.017
日期:2012.2
A palladium-catalyzed Heck diarylation of terminalolefins under ligand-free conditions in acetic acid is described. This procedure allows double arylation of terminalolefins affording trisubstituted olefins in good to excellent yields. The methodology is applicable to the coupling of both electron-deficient and electron-rich aryl iodides leading to symmetrical and unsymmetrical β,β-diarylated alkenes
Palladium-catalyzed desulfitative hydroarylation of alkynes with sodium sulfinates
作者:Saiwen Liu、Yang Bai、Xiangxiang Cao、Fuhong Xiao、Guo-Jun Deng
DOI:10.1039/c3cc43723j
日期:——
A palladium-catalyzeddesulfitative hydroarylation of alkynes with arylsulfinicacid sodium salts is described. The reaction showed good regio- and stereoselectivity, and afforded the hydroarylation products in good yields. Various functional groups were well tolerated under the optimized reaction conditions.
The invention is an organic electroluminescent device that comprises organic compound layer(s) including at least one organic emitting layer sandwiched between a pair of electrodes, wherein at least one organic compound layer is formed from an organic compound material having an impurity concentration of lower than 1000 ppm. The device has the advantages of applicability to lightweight, thin and low-voltage driving displays, good luminescent capacity attenuating little even in long-term driving operation, and good durability.
The invention is an organic electroluminescent device that comprises organic compound layer(s) including at least one organic emitting layer sandwiched between a pair of electrodes, wherein at least one organic compound layer is formed from an organic compound material having an impurity concentration of lower than 1000 ppm. The device has the advantages of applicability to lightweight, thin and low-voltage driving displays, good luminescent capacity attenuating little even in long-term driving operation, and good durability.
Electrophotographic photoreceptor and charge-transporting material for electrophotographic photoreceptor
申请人:Kobayashi Tohru
公开号:US20060147823A1
公开(公告)日:2006-07-06
A charge transporting material for use in an electrophotographic photoreceptor, which comprises a compound represented by the formula (1); and an electrophotographic photoreceptor using this charge transporting material. As the electrophotographic photoreceptor using the charge transporting material, there are illustrated, for example, a lamination type photoreceptor having a charge generating layer
2
and a charge transporting layer
3
and, as needed, an interlayer
7,
and a single layer type photoreceptor. In the formula, R
1
to R
5
each independently represents a hydrogen atom, an alkyl group, a halogen atom, an alkoxy group, an aryl group or a substituted aryl group, and R
6
represents a hydrogen atom, an alkyl group, an aryl group or a substituted aryl group.
一种用于电致发光感光器的电荷传输材料,它包括由式(1)表示的化合物;以及一种使用这种电荷传输材料的电致发光感光器。作为使用该电荷传输材料的电致发光感光元件,举例说明了一种层压式感光元件,它具有电荷发生层
2
和电荷传输层
3
以及必要的中间层
7,
和单层型光感受器。式中,R
1
至 R
5
各自独立地代表氢原子、烷基、卤素原子、烷氧基、芳基或取代的芳基,而 R
6
代表氢原子、烷基、芳基或取代的芳基。