PHENANTHRENE DERIVATIVE, AND MATERIAL FOR ORGANIC EL ELEMENT
申请人:Kawamura Masahiro
公开号:US20100331585A1
公开(公告)日:2010-12-30
A phenanthrene derivative is represented by a formula (1) below. In the formula (1), Ar
1
and Ar
2
each represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring. The aromatic hydrocarbon ring group contains none of anthracene skeleton, pyrene skeleton, aceanthrylene skeleton and naphthacene skeleton. R
1
represents a substituent, the number of which may be 0, 1 or more. R
1
may be bonded in any position of the phenanthrene skeleton. n and m each represent an integer of 1 to 3. k represents an integer of 0 to 8.
DFT-Guided Phosphoric-Acid-Catalyzed Atroposelective Arene Functionalization of Nitrosonaphthalene
作者:Wei-Yi Ding、Peiyuan Yu、Qian-Jin An、Katherine L. Bay、Shao-Hua Xiang、Shaoyu Li、Ying Chen、K.N. Houk、Bin Tan
DOI:10.1016/j.chempr.2020.06.001
日期:2020.8
naphthalene via chiral phosphoric acid catalysis. This strategy enables efficient construction of atropisomeric indole-naphthalenes and indole-anilines with excellent stereocontrol. Density functional theory (DFT) calculations provide further insights into the origins of enantioselectivity and the reaction mechanisms. The successful application in the synthesis of NOBINs (2-amino-2′-hydroxy-1,1′-binaphthyl)
Direct Construction of
<scp>NOBINs</scp>
<i>via</i>
Domino Arylation and Sigmatropic Rearrangement Reactions
作者:Ji‐Wei Zhang、Liang‐Wen Qi、Shaoyu Li、Shao‐Hua Xiang、Bin Tan
DOI:10.1002/cjoc.202000358
日期:2020.12
Privileged 2‐amino‐2’‐hydroxy‐1,1’‐binaphthyl (NOBIN) frameworks were constructed through a novel domino arylation of naphthylhydroxylamines with diarylhalonium salts and sigmatropic rearrangement in a transition metal‐free fashion. This protocol bears broad substrate generality and proceeds under mild reaction conditions, affording diversified NOBINs in high efficiency with absolute regiocontrol during the
A Molecular/Heterogeneous Nickel Catalyst for Suzuki–Miyaura Coupling
作者:Ryan J. Key、John Meynard M. Tengco、Mark D. Smith、Aaron K. Vannucci
DOI:10.1021/acs.organomet.9b00082
日期:2019.5.13
molecular stability of the catalyst while attached to the SiO2 support. This molecular/heterogeneous motif is easily separated from reaction mixtures and can be recycled for multiple catalyticreactions. The catalyst is active for Suzuki–Miyaura catalysis at catalyst loadings as low as 0.1 mol %, and turnover numbers nearing 2000 have been achieved.
COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:IDEMITSU KOSAN CO.,LTD.
公开号:US20210009527A1
公开(公告)日:2021-01-14
A compound represented by the following formula (1), wherein X
1
is O or S, and two or more of Y
1
, Y
2
and Y
3
are N, provided that the case where one or both of —Ar
1
—Ar
2
and —Ar
3
—Ar
4
is a p-terphenyl-3-yl group is excluded.