Reductive Molybdenum-Catalyzed Direct Amination of Boronic Acids with Nitro Compounds
作者:Samuel Suárez-Pantiga、Raquel Hernández-Ruiz、Cintia Virumbrales、María R. Pedrosa、Roberto Sanz
DOI:10.1002/anie.201812806
日期:2019.2.11
The synthesis of aromatic amines is of utmost importance in a wide range of chemical contexts. We report a direct amination of boronic acids with nitro compounds to yield (hetero)aryl amines. The novel combination of a dioxomolybdenum(VI) catalyst and triphenylphosphine as inexpensive reductant has revealed to be decisive to achieve this new C−N coupling. Our methodology has proven to be scalable,
MATERIAL FOR ORGANIC DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
申请人:KWANSEI GAKUIN EDUCATIONAL FOUNDATION
公开号:US20220006012A1
公开(公告)日:2022-01-06
A polycyclic aromatic compound represented by general formula (1) described below and having a bulky substituent in a molecule is used as a material for an organic device, whereby, for example, an organic EL device excellent in quantum efficiency can be provided. In particular, concentration quenching can be suppressed even if a use concentration is comparatively high, and therefore the present art is advantageous in a device production process.
In formula (1) described above, R
1
, R
3
, R
4
to R
7
, R
8
to R
11
and R
12
to R
15
are independently hydrogen, aryl or the like, X
1
is —O— or >N—R (R is aryl or the like), Z
1
and Z
2
are a bulky substituent such as aryl, and at least one hydrogen in the compound represented by formula (1) may be replaced by halogen or deuterium.