Catalytic asymmetric C–N cross-coupling towards boron-stereogenic 3-amino-BODIPYs
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 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.
Язык: Английский
Modular enantioselective assembly of multi-substituted boron-stereogenic BODIPYs
Nature Chemistry,
Год журнала:
2024,
Номер
17(1), С. 83 - 91
Опубликована: Сен. 20, 2024
Язык: Английский
Organocatalyzed Enantioselective C–N Bond-Forming SNAr Reactions for Synthesizing Stereogenic-at-Boron BODIPYs
JACS Au,
Год журнала:
2025,
Номер
5(4), С. 1965 - 1973
Опубликована: Апрель 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.
Язык: Английский
Copper-Catalyzed C–B(sp3) Bond Formation through the Intermediacy of Cu–B(sp3) Complex
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 15, 2025
The
vast
majority
of
transition
metal
(TM)
catalyzed
borylative
transformations
rely
on
TM-B(sp2)
complexes.
Contrastingly,
the
chemistry
TM-B(sp3)
species
and
their
potential
in
catalytic
borylation
remain
surprisingly
underdeveloped,
due
probably
to
lack
suitable
boron(sp3)
reagents.
Herein,
we
employ
our
recently
developed
sp2-sp3
diboron
reagent
successfully
enable
a
copper-catalyzed
hydroboration
allenes
for
C-B(sp3)
bond
formation.
A
comprehensive
mechanistic
study,
including
isolation
structural
characterization
Cu-B(sp3)
complex,
substantiates
presence
intermediate
cycle.
Язык: Английский
Phase-transfer-catalyst enabled enantioselective C–N coupling to access chiral boron-stereogenic BODIPYs
Xueqing Zhang,
Xiaojuan Lv,
Luying Guo
и другие.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 19, 2025
Tetracoordinate
boron-based
fluorescent
materials
have
shown
extensively
applications
in
chemistry,
biology
and
science
owing
to
their
unique
optoelectronic
properties.
However,
constructing
chiral
boron-stereogenic
fluorophores
through
practical
universal
strategies
remains
rare
challenging.
Herein,
as
a
proof
of
concept,
we
report
an
enantioselective
postfunctionalization
boron
dipyrromethene
dyes
(BODIPYs),
acess
BODIPYs
moderate
good
yields
with
commendable
enantioselectivity.
Chiral
attracted
increasing
attention
not
only
distinctively
photophysical
properties
circularly
polarized
luminescence
(CPL)
materials,
but
also
diversely
structural
modification.
In
this·work,
present
phase-transfer-catalyst
enabled
C–N
coupling
reaction
diverse
nucleophiles.
This
method
serves
SNAr
(nucleophilic
aromatic
substitution
reaction)
route
achieve
series
amido/amino
well
demonstrates
promising
CD
and·CPL·activities,
excellent
biocompatibility,
high
specificities,
showing
potential
imaging
agents.
Constructing
Here,
the
authors
Язык: Английский
Supramolecular‐Assembly and Surfactant‐Regulated Circularly Polarized Luminescence from a Spiranic BINOL‐Derived Borate Isoindolyl‐Indolenine (BBI) Dye
Advanced Optical Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 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.
Язык: Английский
Decarboxylative and Decarbonylative Borylation of Carboxylic Acids and Their Derivatives†
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 18, 2024
Comprehensive
Summary
Boronate
esters
are
highly
valued
in
synthetic
and
pharmaceutical
industries
for
their
versatility
creating
C—C
C—X
bonds.
They
also
find
applications
as
catalysts
chemical
transformations
well
stimuli‐responsive
materials
science.
Some
alkyl
boronates
themselves
show
promising
medicinal
chemistry.
In
the
past
few
decades,
chemists
have
been
devoted
to
developing
new
methods
or
starting
synthesizing
boronate
esters.
Carboxylic
acids
derivatives
privileged
entities
due
readily
availability
natural
abundance,
structural
diversity,
stability.
Hence,
transformation
of
carboxylic
acid
alkyl/aryl
has
seen
its
fast
development
decade.
This
review
summarized
state‐to‐art
decarboxylative
decarbonylative
borylation
aryl
Key
Scientists
The
started
only
2016,
amides
was
reported
by
Zhuangzhi
Shi
Magnus
Reuping's
groups.
Then,
2017,
studies
on
redox‐active
such
NHPI
receive
increasing
attention
Aggarwal,
Baran,
Fu,
Glorius,
Li's
From
2018
2023,
large
numbers
using
transition‐metal‐catalyst,
organo‐catalyst,
under
photochemical
electrochemical
conditions
emerged.
Due
space
limitations,
pictures
scientists
who
contributed
more
than
two
works
this
area
shown
herein.
Язык: Английский