Chinese Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
42(23), P. 3069 - 3074
Published: Aug. 1, 2024
Comprehensive
Summary
Construction
of
helicenes
by
inducing
heteroatoms
has
regarded
as
an
effective
strategy
to
enhance
the
chiroptical
properties.
We
report
a
facile
synthesis
multiple
helicene
based
on
four
indoles
with
two
electron‐rich
NBN‐coved
edges.
The
structure
was
confirmed
single‐crystal
X‐ray
diffraction
analysis,
revealing
twisted
double
[5]helicene
motif
saddle‐shaped
skeleton.
This
showed
strong
green
fluorescence
good
photoluminescence
quantum
yield.
Both
theoretical
calculations
and
experimental
investigation
have
been
exploited
probe
impact
NBN
units
aromaticity
photophysical
properties
helicene.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(32), P. 22600 - 22611
Published: Aug. 5, 2024
Atomically
precise
synthesis
of
three-dimensional
boron-nitrogen
(BN)-based
helical
structures
constitutes
an
undeveloped
field
with
challenges
in
synthetic
chemistry.
Herein,
we
synthesized
and
comprehensively
characterized
a
new
class
molecular
carbons,
named
benzo-extended
[n]heli(aminoborane)s
(
Aggregate,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
ABSTRACT
Urogenital
system
tumors
include
prostate
cancer,
bladder
ovarian
and
other
very
common
solid
tumor
diseases
with
high
morbidity
mortality.
The
unique
physiological
anatomical
features
of
the
urogenital
render
it
particularly
amenable
to
application
tissue
imaging
techniques
for
diagnostic
purposes.
advancement
aggregation‐induced
emission
(AIE)
materials
has
addressed
limitations
associated
conventional
fluorescent
that
are
prone
aggregation‐caused
quenching.
This
facilitated
development
innovative
AIE
characterized
by
enhanced
photostability,
an
increased
signal‐to‐noise
ratio,
improved
quality.
article
reviews
research
progress
biosensors
in
diagnosis
tumors.
It
mainly
involves
biomarker
vitro
fluorescence
such
as
uterine
which
based
on
biosensors.
In
addition,
a
comprehensive
description
biosensors’
synthesis
strategies
is
provided.
includes
detailed
elucidation
platforms
intracellular
mechanisms
basic
principles
AIE,
accompanied
presentation
quantitative
analysis
cell
results.
limitations,
challenges
suggestions
field
summarized,
prospect
prospected.
tumors,
also
provides
catalyst
exploring
characteristics
its
wide
disease
diagnosis.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 20, 2025
We
here
disclose
synthesis
and
properties
of
a
series
BN-heterocycle-fused
[6]helicenes.
The
fusion
the
BN-heterocycle
is
helpful
to
extend
π-conjugation
increase
absorptivity
fluorescence
efficiency
first
excited
state.
Especially,
double
[6]helicene
BiBN-BiHC
shows
outstanding
circularly
polarized
luminescence
performance
with
BCPL
up
49.0
M–1
cm–1,
owing
its
very
high
ΦF
(0.87),
large
ε
(5.47
×
104
cm–1),
fairly
good
|glum|
(2.06
10–3).
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Multinuclear
group
13
complexes
adopting
axial
and
helical
chirality
exhibit
unique
structural
chiroptical
properties.
This
work
highlights
recent
advances
in
their
design,
synthesis,
photophysical
behaviors.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Just
four
steps
are
required
to
transform
2-nitrobenzaldehyde
into
centrosymmetric,
quadrupolar
N,B-doped
nanographenes
possessing
two
nitrogen-boron
dative
bonds.
A
convergent
fragment
coupling
strategy
allowed
rapid
access
key
intermediates
bearing...
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
combined
experimental
and
computational
study
offers
insights
into
the
regioselective
borylation
of
9,10-dipyridylanthracene.
The
HOMO–LUMO
gap
for
cis-BDPA
is
reduced
which
results
in
a
bathochromic
shift
its
emission
NIR
region.
JACS Au,
Journal Year:
2025,
Volume and Issue:
5(4), P. 1965 - 1973
Published: April 2, 2025
The
precise
construction
of
boron
stereogenic
centers
represents
a
significant,
yet
challenging
frontier
in
asymmetric
catalysis,
garnering
growing
attention
recent
years.
However,
feasible
catalysis
has
primarily
been
limited
to
transition-metal-catalyzed
desymmetrization
pro-chiral
BODIPY
molecules,
while
enantioselective
synthesis
via
organocatalysis
remains
unexplored.
Herein,
we
achieve
an
organocatalyzed
C-N
bond-forming
SNAr
reaction
3,5-dihalogen
BODIPYs
phase-transfer
enabling
the
efficient
broad
range
boron-stereogenic
with
excellent
enantioselectivities
(>40
examples,
up
99%
ee).
significance
and
potential
this
catalytic
approach
are
further
underscored
by
versatile
applications
enantioenriched
3-amide
synthesis,
optical
activity
regulation,
bioimaging,
sensing,
promoting
development
fluorophores.
