Abstract
In
this
present
work,
a
newly
designed
metal‐oxide
nanoparticle
incorporated
Covalent
organic
framework
(COF),
Cu
x
O
y
@TFP‐ODA
has
been
successfully
synthesized
and
used
for
the
effective
synthesis
of
Oxazolidinones
a‐hydroxy
ketones
under
mild
conditions
utilizing
CO
2
.
Initially,
imine‐linked
2D
COF,
TFP‐ODA
was
by
simple
solvothermal
method
followed
embedment
copper
oxide
nanoparticles
(NPs)
into
skeleton
as‐synthesized
COF.
Different
characterization
techniques
were
employed
to
establish
physical
chemical
characteristics
both
COF
materials.
To
study
catalytic
efficiency
highly
porous
@TFP‐ODA,
three
components
coupling
reaction
involving
primary
amine,
propargyl
alcohol
synthesize
series
2‐Oxazolidinone
α‐hydroxy
using
as
Co‐catalyst
carried
out
over
as‐prepared
catalyst
green
sustainable
which
illustrated
excellent
yields
selectivity
corresponding
products.
The
proved
be
completely
heterogeneous
especially,
material
demonstrated
significant
potential
reuse
across
several
cycles.
Dalton Transactions,
Год журнала:
2024,
Номер
53(14), С. 6215 - 6223
Опубликована: Янв. 1, 2024
Ionic
liquid
post-modified
carboxylate-rich
MOFs,
which
were
synthesized
and
characterized,
are
highly
efficient
for
catalytic
epoxides
CO
2
cycloaddition
under
solvent-free
conditions.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(13), С. 5573 - 5590
Опубликована: Март 25, 2024
A
novel
triazine-based
structured
two-dimensional
(2D)
covalent
organic
framework
(COF),
known
as
TRITER-1,
has
been
prepared
through
the
Schiff-base
condensation
reaction
between
terephthalaldehyde
and
1,3,5-tris(4-aminophenyl)triazine.
Additionally,
g-C3N4
incorporated
within
imine-based
frameworks
to
produce
composite
TRITER-1@g-C3N4,
which
a
relatively
small
band
gap
of
2.0
eV.
This
composite,
called
synthesized
effectively
used
toward
light-driven
formation
methanol
from
most
greenhouse
gas
CO2.
highly
crystalline
polymeric
material
demonstrated
an
outstanding
photocatalytic
activity.
The
active
photocatalyst
TRITER-1@g-C3N4
successfully
reduces
CO2
into
under
ambient
conditions
in
presence
NiO
nanoparticles
cocatalyst
atmospheric
pressure.
visible-light-accelerated
metal-free
reduction
by
this
COF
accomplished
15
W
white
LED
light
illumination,
with
maximum
turnover
number
(TON
=
172,
μmol
22
600).
By
varying
intensity,
it
was
clear
that
failed
take
place
absence
LED.
We
proved
sunlight
can
also
TON
around
73
allow
for
sustainable
reactions.
catalyst
retains
its
catalytic
function
after
being
regenerated
multiple
times
is
effective
selective.
Chemical Communications,
Год журнала:
2024,
Номер
60(50), С. 6362 - 6374
Опубликована: Янв. 1, 2024
Multicomponent
tandem
reactions
have
become
indispensable
synthetic
methods
due
to
their
economic
advantages
and
efficient
usage
in
natural
products
drug
synthesis.
The
emergence
of
metalated
covalent
organic
frameworks
(MCOFs)
has
opened
up
new
opportunities
for
the
advancement
multicomponent
reactions.
In
contrast
commonly
used
homogeneous
transition
metal
catalysts,
MCOFs
possess
regular
porosity,
high
crystallinity,
rich
chelation
sites
that
facilitate
uniform
distribution
anchoring
metals
within
cavities.
Thus,
they
show
extremely
activity
recently
been
widely
employed
as
catalysts
It
is
timely
conduct
a
review
reactions,
order
offer
guidance
assistance
synthesis
MCOF
application
This
provides
comprehensive
overview
design
MCOFs,
progress
primary
challenges
encountered
during
current
development
with
aim
contributing
promotion
field.
Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
365(24), С. 4458 - 4494
Опубликована: Ноя. 24, 2023
Abstract
The
preservation
of
scarce
rare
earth
metals,
such
as
palladium,
rhodium,
iridium,
and
others,
poses
a
significant
challenge
for
humanity
due
to
their
limited
availability.
These
metals
might
be
replaced
by
earth‐abundant
3d‐transition
cobalt,
manganese,
iron,
nickel,
copper,
etc
.
Isoquinolines
have
acquired
an
important
position
in
synthetic
organic
chemistry
well
medicinal
chemistry.
They
manifest
diverse
range
natural
molecules,
serving
pivotal
synthons
the
synthesis
numerous
bioactive
compounds
with
notable
significance.
Numerous
reports
on
isoquinoline
derivatives
via
transition
metal
catalysis
been
published
worldwide.
In
this
review,
we
summarize
recent
approaches
synthesizing
various
using
3d‐transition‐metal
catalysts
since
2020.
review
has
divided
into
different
3d‐transition‐metal‐based
catalysis.
We
expect
that
will
bring
better
overview
present
status
progress
made
isoquinolines
persuade
more
advancements
research
area
near
future.
iScience,
Год журнала:
2023,
Номер
26(11), С. 108088 - 108088
Опубликована: Окт. 27, 2023
A
composite
of
catalytic
Lewis
acidic
zirconium
oxyhydroxides
(8
wt
%)
and
a
covalent
organic
framework
(COF)
was
synthesized.
X-ray
diffraction
infrared
(IR)
spectroscopy
reveal
that
COF's
structure
is
preserved
after
loading
with
oxyhydroxides.
Electron
microscopy
confirms
homogeneous
distribution
nano-
to
sub-micron-sized
clusters
in
the
COF.
3D
tomography
captures
micron-sized
channels
connecting
well-dispersed
on
The
crystalline
ZrOx(OH)y@COF's
nanostructure
model-optimized
via
simulated
annealing
methods.
Using
0.8
mol
%
catalyst
yielded
turnover
number
100–120
frequency
160–360
h−1
for
Knoevenagel
condensation
aqueous
medium.
Additionally,
2.2
catalyzes
hydrolysis
dimethyl
nitrophenyl
phosphate,
simulant
nerve
agent
Soman,
conversion
rate
37%
180
min.
hydrolytic
detoxification
live
Soman
also
achieved.
Our
study
unveils
COF-stabilized
ZrOx(OH)y
as
new
class
zirconium-based
+
Bronsted-acid
catalysts.
