Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 29, 2024
Abstract
The
molecular
engineering
of
boron
dipyrromethenes
(BODIPYs)
has
garnered
widespread
attention
due
to
their
structural
diversity
enabling
tailored
physicochemical
properties
for
optimal
applications.
However,
catalytic
enantioselective
synthesis
structurally
diverse
boron‐stereogenic
BODIPYs
through
intermolecular
desymmetrization
and
with
atroposelectivity
remains
elusive.
Here,
we
showcase
rhodium(II)‐catalyzed
site‐specific
C−H
(hetero)arylations
prochiral
polysubstituted
diazonaphthoquinonesand
diazoindenines,
providing
efficient
pathways
the
rapid
assembly
versatile
(hetero)arylated
axially
chiral
long‐range
axial
rotational
restriction
modes.
synthetic
application
procedures
been
emphasized
by
BODIPY
derivatives
various
functions.
Photophysical
properties,
bioimaging,
lipid
droplet‐specific
targeting
capability
are
also
demonstrated,
indicating
promising
applications
in
biomedical
research,
medicinal
chemistry,
material
science.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 7, 2025
3-Amino
boron
dipyrromethenes
(BODIPYs)
are
a
versatile
class
of
fluorophores
widely
utilized
in
live
cell
imaging,
photodynamic
therapy,
and
fluorescent
materials
science.
Despite
the
growing
demand
for
optically
active
BODIPYs,
synthesis
chiral
3-amino-BODIPYs,
particularly
catalytic
asymmetric
version,
remains
challenge.
Herein,
we
report
boron-stereogenic
3-amino-BODIPYs
via
palladium-catalyzed
desymmetric
C–N
cross-coupling
prochiral
3,5-dihalogen-BODIPYs.
This
approach
features
broad
substrate
scope,
excellent
functional
group
tolerance,
high
efficiency,
remarkable
enantioselectivities,
under
mild
reaction
conditions.
Further
stereospecific
formation
3,5-diamino-BODIPYs,
along
with
an
investigation
into
photophysical
properties
resulting
optical
BODIPYs
also
explored.
protocol
not
only
enriches
chemical
space
chiroptical
BODIPY
dyes
but
contributes
to
realm
chemistry.
(BODIPYs),
which
useful
science,
authors
first
cross-couplings.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(14), P. 10167 - 10176
Published: March 27, 2024
The
π-bond
enrichment
frameworks
not
only
serve
as
a
crucial
building
block
in
organic
synthesis
but
also
assume
pivotal
role
the
fields
of
materials
science,
biomedicine,
photochemistry,
and
other
related
disciplines
owing
to
their
distinctive
structural
characteristics.
incorporation
various
substituents
into
C═C
double
bonds
tetrasubstituted
alkenes
is
currently
highly
significant
research
area.
However,
with
diverse
on
poses
challenge
achieving
stereoselectivity.
Here,
we
reported
an
efficient
convergent
route
Cu-catalyzed
borylalkynylation
both
symmetrical
unsymmetrical
1,3-diynes,
B2pin2,
acetylene
bromide
construction
boronated
phenyldiethynylethylene
(BPDEE)
derivatives
excellent
chemo-,
stereo-,
regioselectivities.
BPDEE
could
transform
novel
π-conjugated
gem-diphenyldiethynylethylene
(DPDEE),
vinylphenyldiethynylethylene
(VPDEE),
phenyltriethynylethylene
(PTEE)
by
stepwise
process,
which
provides
flexible
platform
for
complex
that
were
difficult
synthesize
previous
methods.
initial
optical
characterization
revealed
synthesized
molecules
exhibited
aggregation-induced
emission
(AIE)
properties,
further
establishes
groundwork
future
applications
enriches
advances
field
functional
research.
Chinese Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
42(19), P. 2401 - 2411
Published: May 27, 2024
Comprehensive
Summary
The
21
st
century
has
witnessed
a
continuous
evolution
in
the
development
of
boron‐stereogenic
chemistry.
Since
1990s,
various
innovations
for
synthesis
tetracoordinate
compounds,
which
exhibited
great
potential
applications,
have
been
demonstrated
by
synthetic
chemists.
This
paper
reviews
significant
progress
and
recent
advances
towards
assembly
enantioenriched
hopes
to
shed
light
on
new
perspectives
inspire
further
research
this
emerging
field.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 29, 2024
The
molecular
engineering
of
boron
dipyrromethenes
(BODIPYs)
has
garnered
widespread
attention
due
to
their
structural
diversity
enabling
tailored
physicochemical
properties
for
optimal
applications.
However,
catalytic
enantioselective
synthesis
structurally
diverse
boron-stereogenic
BODIPYs
through
intermolecular
desymmetrization
and
with
atroposelectivity
remains
elusive.
Here,
we
showcase
rhodium(II)-catalyzed
site-specific
C-H
(hetero)arylations
prochiral
polysubstituted
diazonaphthoquinonesand
diazoindenines,
providing
efficient
pathways
the
rapid
assembly
versatile
(hetero)arylated
axially
chiral
long-range
axial
rotational
restriction
modes.
synthetic
application
procedures
been
emphasized
by
BODIPY
derivatives
various
functions.
Photophysical
properties,
bioimaging,
lipid
droplet-specific
targeting
capability
are
also
demonstrated,
indicating
promising
applications
in
biomedical
research,
medicinal
chemistry,
material
science.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 28, 2025
Here,
we
report
the
Cu-catalyzed
asymmetric
carbene
insertion
into
both
Ge-H
and
Si-H
bonds
with
α-trifluoromethyl
diazo
compounds,
enabled
by
a
class
of
newly
developed
C2-symmetrical
bisoxazoline
ligands.
This
protocol
provides
an
efficient
method
for
preparation
enantioenriched
ogranogermanes
organosilanes,
featuring
broad
substrate
scope,
mild
reaction
conditions,
excellent
enantioselectivity,
low
catalyst
loading.
The
key
to
tolerance
is
use
SPSiBox
ligands
bearing
flexible
tunable
chiral
pocket.
Preliminary
mechanistic
studies
computational
unveiled
origin
induction
ligands,
mechanism
insertion.
not
only
new
construction
trifluoromethyl-containing
molecules
but
also
opens
avenue
Si-
Ge-containing
functional
molecules.
Asian Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
13(4)
Published: Jan. 3, 2024
Abstract
Enynones
and
enynals
represent
donor‐type
carbene
precursors
that
efficiently
form
furyl
metal
carbenes
via
a
catalytic
intramolecular
5‐exo‐dig
cyclization
rearrangement
cascade,
in
100
%
atom‐economical
manner,
using
various
metals.
These
have
been
successfully
utilized
numerous
reactions,
including
X−H
insertion,
cyclopropanations,
metathesis,
cross‐coupling,
demonstrating
broad
reaction
scope
efficiency
constructing
highly
functionalized
furans.
Recent
years
witnessed
significant
advancements
transformations
involving
carbenes,
especially
asymmetric
insertion
domino
reactions
zwitterionic
intermediates,
strategies,
their
application
synthesizing
functional
materials
drug
candidates.
In
this
review,
we
summarize
recent
progress
generated
from
enynones
enynals,
focusing
on
the
synthesis
of
Advanced Optical Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 4, 2025
Abstract
Circularly
polarized
luminescence
(CPL)
materials
have
attracted
significant
attention
owing
to
their
unique
luminescent
properties
and
broad
range
of
applications.
However,
challenges
remain,
including
controlling
helical
assembly,
mitigating
aggregation‐caused
quenching,
balancing
quantum
yield
(
Φ
PL
)
with
g
values.
Here,
the
study
reports
synthesis
a
novel
asymmetric,
spiranic
O‐organoboranes
bearing
isoindolyl‐indolenine
scaffold
(BBI)
axial
chirality
through
BINOL
substitution,
as
well
its
supramolecular
assembly
surfactant‐regulated
tunable
CPL
behaviors.
The
newly
designed
BBI
dye
shows
relative
weak
10%
in
toluene.
Supramolecular
acetonitrile/water
co‐solvents
exhibit
an
obvious
aggregation‐induced
emission
(AIE)
process,
leading
formation
spherical
nanostructures
red‐shifted
orange‐yellow
(554
nm,
=
0.012,
7%).
Moreover,
surfactant
sodium
dodecyl
sulfonate
(SDS)
can
promote
aggregation
pure
deionized
water,
producing
nanofibers
blue‐shifted
yellow
(536
0.006,
13%).
Crystal
growth
toluene/hexane
SDS
aqueous/acetonitrile
systems
reveals
chiral
crystals
P
212121
space
group,
offering
insights
into
amplification.
This
demonstrates
ability
precisely
control
parameters,
X‐ray
single‐crystal
analysis
providing
additional
understanding
regulation.