C−H Activation Based Copper‐Catalyzed One‐Shot Synthesis of N,O‐Bidentate Organic Difluoroboron Complexes
作者:Guangying Tan、Malte L. Schrader、Constantin Daniliuc、Felix Strieth‐Kalthoff、Frank Glorius
DOI:10.1002/anie.202008311
日期:2020.11.23
Organic BF2 complexes exhibit characteristics such as large Stokes shift, high quantum yield, strong emission intensity, and robust chemical stability, thereby being extensively used in various applications. Herein, we disclose a novel copper‐catalyzed cascade C−H activation/acyloxylation and difluoroboronation of 2‐phenylpyridine derivatives, thus providing a straightforward and rapid gateway to a
An organic light emitting device (OLED) that includes an anode, a cathode, and an organic layer disposed between the anode and the cathode. The organic layer includes a metal compound that comprises a ligand L
A
of Formula I, wherein the dashed lines represent coordination to a metal M.
The metal M is selected from the groups consisting of Os, Ru, Ir, Rh, Pt, Pd, and Cu, and the metal is further coordinated to one or more ligand(s) L
B
, wherein the ligand(s) L
B
can be the same or different if more than one ligand L
B
is present. Optionally one or two of the ligand(s) L
B
can independently link to the ligand L
A
through one of R
1
to R
5
. The invention is also directed to a consumer product that includes an OLED, and the OLED includes an organic layer that includes a metal compound that comprises a ligand L
A
of Formula I.
The present invention relates to compounds of formula (I)
and pharmaceutically acceptable salts and solvates thereof, wherein the substituents are as defined herein, compositions containing such compounds and the uses of such compounds for the treatment of various diseases and conditions such as asthma.
The present invention discloses compounds of formulae (I), (II) or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
Substituted acid derivatives useful as antidiabetic and antiobesity agents and method
申请人:Cheng T. Peter
公开号:US20070015797A1
公开(公告)日:2007-01-18
Compounds are provided which have the structure
wherein Q is C or N, A is O or S, Z is O or a bond, X is CH or N and R
1
, R
2
, R
2a
, R
2b
, R
2c
, R
3
, Y, x, m, and n are as defined herein, which compounds are useful as antidiabetic, hypolipidemic, and antiobesity agents.