Synlett,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
Pd-catalyzed
cross-couplings
of
C–H
bonds
have
been
pursued
by
researchers
to
produce
unsymmetrical
C–C
directly
for
over
50
years.
Such
are
currently
prepared
Suzuki,
Kumada,
Stille,
Neigishi,
Heck,
or
Sonogashira
coupling
C–halogen
with
C–M
bonds.
A
big
challenge
is
obtain
high
cross-selectivity
cross-coupling
products,
especially
when
the
substrates
similar
chemical
bonds,
such
as
simple
arenes.
Lu
and
co-workers
studied
Pd
catalysis
in
aryl
since
2003.
This
account
introduces
their
strategy,
understanding,
research
control,
activation
modes,
establishment,
discusses
applications
approach
synthesis.
1
Introduction
2
Cross-Selectivity
Control
3
Conclusion
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(11), P. 5904 - 5955
Published: Jan. 1, 2024
Thermally
activated
delayed
fluorescence
(TADF)
emitters
have
become
increasingly
prominent
due
to
their
promising
applications
across
various
fields,
prompting
a
continuous
demand
for
developing
reliable
synthetic
methods
access
them.
This
review
aims
highlight
the
progress
made
in
last
decade
synthesizing
organic
TADF
compounds
through
C-H
bond
activation
and
functionalization.
The
begins
with
brief
introduction
basic
features
design
principles
of
emitters.
It
then
provides
an
overview
advantages
concise
development
transformations
constructing
Subsequently,
it
summarizes
both
transition-metal-catalyzed
non-transition-metal-promoted
used
synthesis
Finally,
gives
outlook
on
further
challenges
potential
directions
this
field.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
In
this
work,
we
designed
and
synthesized
three
spirobifluorene
(SBF)-based
hole-transporting
materials
(HTMs)
by
incorporating
the
di-4-tolylamino
group
at
different
positions
of
SBF
skeleton.
These
demonstrate
excellent
thermal
stability
with
decomposition
temperatures
(
Organics,
Journal Year:
2024,
Volume and Issue:
5(4), P. 520 - 560
Published: Nov. 11, 2024
This
review
provides
a
comprehensive
overview
of
recent
advancements
in
the
synthesis,
properties,
and
applications
organic
materials
optoelectronics
sector.
The
study
emphasizes
critical
role
development
state-of-the-art
optoelectronic
devices
such
as
solar
cells,
thin-film
transistors,
OLEDs.
further
examines
structure,
operational
principles,
performance
metrics
devices.
Organic
have
emerged
promising
candidates
due
to
their
low-cost
production
potential
for
large-area
or
flexible
substrate
applications.
Additionally,
this
highlights
physical
mechanisms
governing
properties
high-performance
materials,
particularly
photoinduced
processes
relevant
charge
carrier
photogeneration.
It
discusses
unique
benefits
over
traditional
inorganic
including
light
weight,
simple
processing,
flexibility.
report
delves
into
challenges
related
stability,
scalability,
performance,
while
highlighting
wide
range
electronic
exhibited
by
which
are
performances
Furthermore,
it
addresses
need
research
field
achieve
consistent
across
different
types
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(20), P. 7803 - 7815
Published: Jan. 1, 2024
A
tin-free
asymmetric
small-molecule
guest
donor
(
o
PhFO)
with
a
wide
bandgap
allows
PM6:
PhFO:BTP-ec9
ternary
OSCs
to
reach
champion
efficiency
of
19.5%
by
optimizing
blend
morphology
and
vertical
phase
separation
as
well
reducing
energy
loss.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(27), P. 10547 - 10555
Published: Jan. 1, 2024
Design
concept
of
introducing
linear
structure
into
orthogonal
configuration
is
presented.
To
validate
this
concept,
1,4-diaryl
spirobifluorenes
are
synthesized
via
interannular
selective
C–H
arylation,
proving
to
be
excellent
pure
hydrocarbon
hosts.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
ruthenium-catalyzed
C–H
bond
activation
and
annulation
reaction
efficiently
constructed
the
structurally
diverse
pyrido[3,4-
c
]phenothiazin-3-iums
with
anti-Kasha
dual-emission
TADF
characteristics.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 25, 2024
Narrowband
fluorescent
emitters
are
receiving
significant
attention
due
to
the
great
potential
for
creating
ultrahigh-definition
organic
light-emitting
diode
displays
(UHD-OLED).
Unveiling
innovative
mechanisms
design
new
high-performance
narrowband
is
a
concerted
endeavor
in
both
academic
and
industrial
circles.
Theoretical
calculations
reveal
that
centrosymmetric
dianilido-bipyridine
boron
difluoride
framework
(cs-DAPBF2)
exhibits
significantly
reduced
structural
relaxation
compared
previously
reported
asymmetric
structures
with
monofluoroboron
cores,
opportunities
development
of
emitters.
In
this
work,
we
present
dual
chelation-assisted
C–H/C–H
homocoupling
strategy
efficiently
synthesize
3,3′-amino-2,2′-bipyridine
skeleton,
enabling
straightforward
construction
series
symmetric
cs-DAPBF2-based
Through
molecular
optimization,
have
developed
green
emitter,
cs-DMeAPBF2-MP,
which
demonstrates
narrow
full
width
at
half-maximum
(fwhm)
20
nm,
high
photoluminescence
quantum
yield
(ΦPL)
98%,
large
molar
absorptivity
(ε)
2.10
×
104
M–1
cm–1,
horizontal
dipole
ratio
(Θ//)
77%.
These
properties
make
cs-DMeAPBF2-MP
promising
candidate
fabricating
high-efficiency,
diodes
(OLEDs)
minimal
efficiency
roll-off.
This
study
represents
first
successful
application
DAPBF2
architecture
OLEDs.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 14, 2025
An
efficient
Rh(III)-catalyzed
annulation
between
3-aryl-2H-benzo[b][1,4]oxazines
and
α-diazo-β-ketoesters
was
developed,
affording
a
series
of
polycyclic
heteroarenes
in
moderate
to
excellent
yields
with
good
functional
group
compatibility.
The
procedure
featured
high
efficiency,
redox
neutrality,
twofold
ortho-C-H
activation,
dual
[4
+
2]
annulation.
Moreover,
several
important
intermediates
products
have
been
isolated
as
powerful
evidence
for
the
proposed
reaction
mechanism.
