A review on sustainable iron oxide nanoparticles: syntheses and applications in organic catalysis and environmental remediation
Green Chemistry,
Год журнала:
2024,
Номер
26(13), С. 7579 - 7655
Опубликована: Янв. 1, 2024
In
this
review
paper,
recent
developments
of
iron
oxide
nanoparticles
are
highlighted
and
discussed
in
the
field
organic
catalysis
environmental
remediation.
Язык: Английский
Synthesis of Alkynylsilanes: A Review of the State of the Art
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(11), С. 2382 - 2431
Опубликована: Апрель 12, 2024
Abstract
This
contribution
offers
a
comprehensive
overview
of
methods
for
forging
sp
C−Si
bonds.
Over
time,
alkynylsilanes
(silylacetylenes),
once
considered
mere
byproducts
hydrosilylation
processes,
have
become
essential
building
blocks
in
organic
synthesis.
literature
review
traces
the
evolution
their
synthesis,
from
traditional
methodologies
relying
on
organolithium
and
organomagnesium
compounds
to
more
advanced
cross‐coupling
reactions
involving
hydro‐
carbosilanes.
Focused
primarily
past
25
years
(2000–2024),
it
also
extensively
references
significant
historical
breakthroughs.
By
analyzing
synthetic
methodologies,
not
only
survey
current
state
knowledge
but
identifies
areas
improvement.
Furthermore,
emphasize
importance
1‐alkynylsilanes
(1‐silyl‐1‐alkynes),
selected
applications
these
are
highlighted,
confirming
potential
Язык: Английский
Solvated Electrons: Dynamic Reductant in Visible Light Photoredox Catalysis
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(9), С. 1906 - 1921
Опубликована: Март 13, 2024
Abstract
Open
shell
species
are
alluring
significant
attention
owing
to
their
unique
physiochemical
properties
in
redox
chemistry
for
activating
remarkably
stable
bonds.
Solvated
electrons
one
of
them
that
have
been
extensively
investigated
due
high
reduction
potential
(E
red
=−2.9
V
vs
SHE
CH
3
CN),
diverse
substrate
activation,
and
promising
applications.
If
the
a
larger
with
longer
lifetime,
then
broader
range
substrates
will
be
activated.
Hence,
solvated
electron
qualifies
as
super‐reductant
these
qualities.
However,
safety
issues,
generating
by
dissolving
alkali
metals
an
ammoniated
solvent
limits
its
use
towards
complicated
organic
transformations.
Instead
photochemically
generated
overcome
this
limitation
is
identified
user‐friendly,
sustainable,
much
safer
alternative
approach
producing
electrons.
In
minireview,
we
comprehensively
highlighted
recent
key
methods
generate
photochemically,
characterization
techniques,
application
transformations
selected
examples.
The
minireview
provides
new
opportunities
chemists
understand
conceptual,
physical,
mechanistic
principle
super
reductant
exploiting
photochemical
route
difficult
achieve
other
means.
Язык: Английский
A heterogeneous MOF-253-based Pd/Cu bimetal for Sonogashira coupling reactions
Tetrahedron,
Год журнала:
2025,
Номер
unknown, С. 134628 - 134628
Опубликована: Март 1, 2025
Язык: Английский
Assessing the activity and stereoselectivity of heterobimetallic Zr/Co complexes catalyzed terminal alkyne dimerization: A DFT study
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(6)
Опубликована: Март 29, 2024
Early/late
heterobimetallic
complexes
are
widely
recognized
as
one
of
the
most
effective
catalysts
for
activating
coupling
reactions.
Herein,
DFT
calculations
were
used
to
investigate
specific
mechanisms
terminal
alkyne
dimerization
facilitated
by
two
types
Zr/Co
complexes:
bis
(phosphinoamide)
complex
B
and
mono
C
.
In
addition,
their
reaction
activities
compared
with
that
three
ligand‐bridged
A
The
results
show
activated
reactions
similar,
all
them
contain
inner‐
outer‐sphere
mechanisms,
inner
is
optimal
process.
Compared
,
dimerizations
have
lower
energy
barriers
better
selectivity
E
‐isomer;
thus,
mono‐
bis‐(phosphinoamide)
expected
activity
than
tris
complexes.
stereoselectivity
‐,
Z
gem
‐isomers
controlled
reductive
elimination
IRI
analysis
reveals
‐
influenced
due
notable
repulsion
vdW
interaction
between
second
MeNPMe
2
ligand.
Our
work
provides
a
theoretical
basis
experimental
applications
offers
inspiration
design
high
Язык: Английский
Reaction-Based Multisignal Detection of Palladium with High Sensitivity, Selectivity, and Reliability
ACS Applied Optical Materials,
Год журнала:
2024,
Номер
2(1), С. 173 - 180
Опубликована: Янв. 17, 2024
Due
to
vast
application
of
palladium
in
academia
and
industry
its
toxicity,
it
is
critical
develop
user-friendly,
portable,
affordable
methods
for
accurately
detecting
ultratrace
Pd.
In
this
study,
a
highly
sensitive
selective
fluorescent
probe
(N-butyl-4-alloxy-1,8-naphthalimide,
compound
2)
was
synthesized,
which
demonstrated
multiple
signals
[enhanced
fluorescence
(FL),
ratiometric
FL,
colorimetric
responses]
upon
interaction
with
palladium.
The
2
designed
by
incorporating
naphthalimide-based
dye
as
the
fluorophore
an
allyl
ether
group
responsive
unit.
Utilizing
Pd0-triggered
cleavage
reaction
deallylation
through
Tsuji–Trost
reaction,
exhibited
rapid
response,
wide
linearity,
exceptional
sensitivity
limit
detection
low
2.2
pM,
high
selectivity
toward
species.
addition,
enhanced
FL
could
be
developed
portable
sensor
via
naked
eye
visualization
semiquantitative
Integrating
easily
available
smartphone
(with
camera
color-analysis
app),
potential
situ
quantitative
achieved
at
cost.
shows
sensor,
work
provides
valuable
insights
into
developing
sensors
good
sensitivity,
selectivity,
improved
reliability,
portability
other
analytes
interest.
Язык: Английский
Beyond Acetylene: Exploring Solvent Stabilization of Calcium Carbide‐derived Acetylide Intermediates and Their Significance in Small Organic Molecule Synthesis
ChemistrySelect,
Год журнала:
2024,
Номер
9(14)
Опубликована: Апрель 4, 2024
Abstract
The
reaction
of
calcium
carbide
with
water
has
been
widely
used
as
a
source
acetylene
for
the
synthesis
organic
molecules.
In
contrast
this
traditional
approach,
we
use
CaC
2
under
water‐starved
conditions
and
show
reactions
that
involve
acetylide
intermediate,
reminiscent
Grignard
intermediates,
which
are
stabilized
by
solvent.
Using
pathway
may
allow
new
chemistry,
finer
control,
safety
limiting
formation
gas
during
reaction.
For
example,
bromoarenes,
readily
yields
corresponding
diaryl
acetylene.
Язык: Английский
Advances and emerging trends in mechanistic insights of Sonogashira-type coupling reactions towards Green Protocols for sustainable organic transformations
Journal of Organometallic Chemistry,
Год журнала:
2024,
Номер
1016, С. 123243 - 123243
Опубликована: Июнь 24, 2024
Язык: Английский
Synergistic Pd(OAc)2/CuI-catalyzed alkynylation of β-lactam derivative via Sonogashira coupling
Tetrahedron,
Год журнала:
2024,
Номер
unknown, С. 134290 - 134290
Опубликована: Окт. 1, 2024
Язык: Английский
Copper nanoclusters: emerging photoredox catalysts for organic bond formations
Chemical Communications,
Год журнала:
2024,
Номер
60(94), С. 13858 - 13866
Опубликована: Янв. 1, 2024
Advancements
in
fine
chemical
synthesis
and
drug
discovery
continuously
demand
the
development
of
new
more
efficient
catalytic
systems.
In
this
regard,
numerous
transition
metal-based
catalysts
have
been
developed
successfully
applied
industrial
processes.
However,
need
for
innovative
catalyst
systems
to
further
enhance
efficiency
transformations
applications
persists.
Metal
nanoclusters
(NCs)
represent
a
distinct
class
ultra-small
nanoparticles
(<3
nm)
characterized
by
precise
number
metal
atoms
coordinated
with
defined
ligands.
This
structure
confers
abundant
unsaturated
active
sites
unique
electronic
optical
properties,
setting
them
apart
from
conventional
or
bulk
metals.
The
well-defined
monodisperse
nature
NCs
make
particularly
attractive
applications.
Among
these,
copper-based
emerged
as
versatile
sustainable
challenging
organic
bond-forming
reactions.
Their
including
natural
abundance,
accessible
oxidation
states,
diverse
ligand
architectures,
strong
photophysical
characteristics,
contribute
their
growing
prominence
field.
review,
we
discuss
photocatalytic
activities
Cu-based
nanoclusters,
focusing
on
cross-coupling
reactions
(C-C
C-N),
click
reactions,
multicomponent
couplings,
Язык: Английский