Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Feb. 8, 2024
Abstract
Boroxines
are
significant
structures
in
the
production
of
covalent
organic
frameworks,
anion
receptors,
self-healing
materials,
and
others.
However,
their
utilization
aqueous
media
is
a
formidable
task
due
to
hydrolytic
instability.
Here
we
report
water-stable
boroxine
structure
discovered
from
2-hydroxyphenylboronic
acid.
We
find
that,
under
ambient
environments,
acid
undergoes
spontaneous
dehydration
form
dimer
with
dynamic
bonds
aggregation-induced
enhanced
emission
activity.
Intriguingly,
upon
exposure
water,
rapidly
transforms
into
excellent
pH
stability
water-compatible
bonds.
Building
these
discoveries,
strong
binding
capacity
boroxines
toward
fluoride
ions
media,
develop
boroxine-based
hydrogel
high
acid–base
reversible
gel–sol
transition.
This
discovery
breaks
constraint
not
being
applicable
opening
new
era
researches
chemistry.
Science,
Journal Year:
2018,
Volume and Issue:
360(6384), P. 75 - 80
Published: Feb. 19, 2018
A
sulfur
matchmaker
for
fluorous
coupling
Fluorination
is
a
burgeoning
technique
fine-tuning
the
properties
of
pharmaceutical
compounds.
Unfortunately,
cross-coupling
reactions
widely
used
to
make
carbon-carbon
bonds
in
drug
research
can
be
tripped
up
by
fluorine
substituents.
Merchant
et
al.
report
class
easily
prepared,
solid
sulfone
compounds
that
engage
nickel-catalyzed
their
fluoroalkyl
groups
with
aryl
zinc
reagents.
These
sulfones
considerably
simplify
synthetic
routes
fluorinated
analogs
would
previously
have
required
multistep
strategies
focused
strictly
on
fluorination
protocol.
Science
,
this
issue
p.
75
Journal of the American Chemical Society,
Journal Year:
2018,
Volume and Issue:
140(36), P. 11317 - 11324
Published: July 26, 2018
Alkene
hydroarylation
forms
carbon-carbon
bonds
between
two
foundational
building
blocks
of
organic
chemistry:
olefins
and
aromatic
rings.
In
the
absence
electronic
bias
or
directing
groups,
only
Friedel-Crafts
reaction
allows
arenes
to
engage
alkenes
with
Markovnikov
selectivity
generate
quaternary
carbons.
However,
intermediacy
carbocations
precludes
use
electron-deficient
arenes,
including
Lewis
basic
heterocycles.
Here
we
report
a
highly
Markovnikov-selective,
dual-catalytic
olefin
that
tolerates
heteroarenes
any
character.
Hydrogen
atom
transfer
controls
formation
branched
products
arene
halogenation
specifies
attachment
points
on
ring.
Mono-,
di-,
tri-,
tetra-substituted
yield
carbons
within
nonstrained
Science,
Journal Year:
2021,
Volume and Issue:
374(6565), P. 301 - 308
Published: Oct. 15, 2021
Which
phosphines
squeeze
together?
Phosphine
ligands
coordinated
to
palladium
and
nickel
are
essential
tools
for
assembling
the
backbones
of
pharmaceutical
compounds.
For
decades,
descriptors
that
characterize
spatial
bulk
have
helped
guide
phosphine
optimization.
However,
these
tend
apply
ideal
geometries
a
single
ligand.
Newman-Stonebraker
et
al
.
introduce
descriptor
considers
how
ligand
conformation
might
change
in
crowded
environment.
Specifically,
they
found
minimum
percentage
buried
volume
accurately
predicts
when
one
or
two
particular
will
coordinate
metal
center,
frequently
key
determinant
successful
catalysis.
—JSY
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(6), P. 4162 - 4184
Published: Jan. 1, 2021
This
review
provides
a
comprehensive
summary
of
recent
advances
in
nickel-catalyzed
reactions
employing
tertiary
alkyl
electrophiles
for
the
construction
quaternary
carbon
centers.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(19), P. 8351 - 8377
Published: Jan. 1, 2022
This
review
focuses
on
nickel-catalyzed
construction
and
transformation
of
various
sulfide-containing
compounds,
such
as
sulfides,
disulfides,
hypervalent
sulfur-containing
compounds.
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(16), P. 8903 - 8953
Published: Jan. 1, 2021
The
formation
of
C–aryl
bonds
has
been
the
focus
intensive
research
over
last
decades
for
construction
complex
molecules
from
simple,
readily
available
feedstocks.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(9)
Published: Jan. 22, 2021
Abstract
Luminescent
organic–inorganic
low‐dimensional
ns
2
metal
halides
are
of
rising
interest
as
thermographic
phosphors.
The
intrinsic
nature
the
excitonic
self‐trapping
provides
for
reliable
temperature
sensing
due
to
existence
a
range,
typically
50–100
K
wide,
in
which
luminescence
lifetimes
(and
quantum
yields)
steeply
temperature‐dependent.
This
sensitivity
range
can
be
adjusted
from
cryogenic
temperatures
above
room
by
structural
engineering,
thus
enabling
diverse
thermometric
and
applications
ranging
protein
crystallography
diagnostics
microelectronics.
Owing
stable
oxidation
state
Sb
3+
,
Sb(III)‐based
far
more
attractive
than
all
major
non‐heavy‐metal
alternatives
(Sn‐,
Ge‐,
Bi‐based
halides).
In
this
work,
relationship
between
characteristics
crystal
structure
microstructure
TPP
SbBr
5
(TPP
=
tetraphenylphosphonium)
is
established,
then
its
potential
showcased
environmentally
robust
phosphor
remote
thermography.
material
easily
processable
into
thin
films,
highly
beneficial
high‐spatial‐resolution
particular,
compelling
combination
high
spatial
resolution
(1
µ
m)
precision
(high
specific
sensitivities
0.03–0.04
−1
)
demonstrated
fluorescence‐lifetime
imaging
heated
resistive
pattern
on
flat
substrate,
covered
with
solution‐spun
film
.
