Abstract
LaSrCoO
4
,
LaSrNiO
and
LaSrCuO
were
synthesised
by
the
reverse
micellar
route
using
three
different
microemulsion
compositions.
The
as
prepared
nanostructures
characterised
powder
X‐ray
diffraction
(PXRD),
field
emission
scanning
electron
microscopy,
energy
dispersive
spectroscopy
transmission
microscopy.
PXRD
of
all
samples
indicate
pure
phases
which
crystallize
into
a
tetragonal
system.
particle
size
shape
nanoparticles
varies
with
Magnetisation
studies
suggested
that
two
display
canted
antiferromagnetism
while
others
showed
no
sign
long‐range
ordering.
seemed
to
show
spin
glass
behaviour.
Some
these
materials
successfully
used
catalysts
for
organic
transformations.
esterification
aldehydes
in
presence
alkyl
halides
alcohols
has
been
made
mild
practicable
copper
catalysed
TBHP/DTBP
promoting
reaction.
This
approach
is
suitable
wide
variety
aldehydes,
including
those
are
notoriously
difficult
convert
through
C(sp
2
)−H
bond
scission
produce
required
esters
good
outstanding
yield.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Авг. 5, 2024
We
have
developed
an
innovative
mesoporous
nanocatalyst
by
carefully
attaching
a
2-aminothiophenol-Cu
complex
onto
functionalized
MCM-41.
This
straightforward
synthesis
process
has
yielded
versatile
known
for
its
outstanding
efficiency,
recyclability,
and
enhanced
stability.
The
structural
integrity
of
the
was
comprehensively
analyzed
using
array
techniques,
including
BET
(Brunauer–Emmett–Teller)
surface
area
measurement,
ICP
(Inductively
Coupled
Plasma)
metal
content
determination,
EDS
(Energy-Dispersive
X-ray
Spectroscopy)
elemental
mapping,
XRD
(X-ray
Diffraction)
crystalline
structure
elucidation,
SEM
(Scanning
Electron
Microscopy),
EMA
(Elemental
Mapping
Analysis),
TEM
(Transmission
TGA
(Thermogravimetric
FT-IR
(Fourier
Transform
Infrared
Spectroscopy),
AFM
(Atomic
Force
CV
(cyclic
voltammetry).
Subsequently,
catalytic
properties
newly
MCM-41-CPTEO-2-aminothiophenol-Cu
catalyst
evaluated
in
biphenyls,
demonstrating
yields
through
Suzuki
coupling
reaction
between
phenylboronic
acid
aryl
halides.
Importantly,
this
conducted
environmentally
friendly
medium.
Note
remarkable
recyclability
catalyst,
proving
sustainability
over
six
cycles
with
minimal
loss
activity
additionally
hot
filtration
test
prepared
to
examine
stability
nanocatalyst.
feature
emphasizes
catalyst's
potential
long-term,
conscious
applications.
ACS Catalysis,
Год журнала:
2024,
Номер
14(21), С. 16434 - 16458
Опубликована: Окт. 23, 2024
Thermo-catalytic
CO2
hydrogenation
to
high-value
oxygenates
has
been
regarded
as
one
of
the
most
powerful
strategies
that
can
potentially
alleviate
excessive
emissions.
However,
due
high
chemical
stability
and
variability
pathways,
it
is
still
challenging
achieve
highly
active
selective
hydrogenation.
Single
atom
catalysts
(SACs)
with
ultrahigh
metal
utilization
efficiency
extraordinary
electronic
features
have
displayed
growing
importance
for
thermo-catalytic
multiple
developed
improve
performances.
Here,
we
review
breakthroughs
in
developing
SACs
efficient
toward
common
(CO,
HCOOH,
CH3OH,
CH3CH2OH)
following
order:
first,
an
analysis
reaction
mechanisms
thermodynamics
challenges
reactions;
second,
a
summary
SAs
designed
by
dividing
them
into
two
categories
single-
dual-sites;
third,
discussion
support
effects
focus
on
approaches
regulating
strong
metal–support
interaction
(MSI).
Summarily,
current
future
perspectives
develop
higher-performance
are
presented.
We
expect
this
bring
more
design
inspiration
trigger
innovation
catalytic
evolution
materials
eventually
benefit
achievement
carbon-neutrality
goal.
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 9, 2025
Abstract
Herein
we
have
synthesized
9-aryl-1,8-dioxo-octahydroxanthenes
using
a
newly
developed
graphene
composite
through
heterocyclization.
Notably,
derivatives
with
–Cl
and
–NO2
substitutions
demonstrated
significant
inhibition
of
protein
denaturation,
suggesting
strong
anti-inflammatory
activity.
Furthermore,
compounds
–H,
–Cl,
exhibited
the
largest
zones
(ZOI)
against
both
Gram-positive
(B.
subtilis)
Gram-negative
(E.
coli)
bacterial
strains,
underscoring
their
potent
antibacterial
properties.
These
show
promising
activities,
enhanced
bioactivity
observed
at
higher
concentrations.
Overall,
our
results
indicate
that
these
considerable
potential
for
therapeutic
applications
in
treatments.
Research on Chemical Intermediates,
Год журнала:
2024,
Номер
50(6), С. 2827 - 2840
Опубликована: Апрель 23, 2024
Abstract
The
article
describes
a
green
and
efficient
synthesis
method
for
pyrano[2,3-c]-pyrazoles,
employing
DL-alpha-tocopherol
methoxypolyethylene
glycol
succinate
solution
(TPGS-750-M)
as
biodegradable
surfactant
in
water.
utilization
of
water
reaction
medium
TPGS-750-M
obviates
the
necessity
organic
solvents,
thereby
enhancing
environmental
sustainability
synthesis.
compounds
synthesized
using
this
novel
was
characterized
various
spectroscopic
techniques,
including
1
H-NMR,
13
C-NMR,
mass
spectrometry.
Graphical
abstract
Abstract
One‐pot
synthesis
of
N
‐benzhydrylpyridine‐2‐amines
employing
Gooseberry
amla
(
Phyllanthus
emblica
)
fruit
extract
(GAFE)
as
an
organoacid
catalyst,
was
executed
in
the
current
investigation
with
primary
emphasis
on
green
chemistry.
The
spectrum
displays
these
compounds
were
analyzed
using
FT‐IR,
1
H
and
13
C
NMR,
LC‐MS.
For
substantial
ecological
assurance,
we
adopted
chemistry
methodologies
to
lessen
risk
exposure
hazardous
chemical
materials
amid
diverse
heterocyclic
compounds.
Moreover,
α‐branched
amines
are
synthesized
greener
milder
way
use
a
natural
more
yields
compared
other
methods.
This
innovative
approach
has
lot
offer
terms
its
rapid
reaction
time
frames,
clear
profiles,
benign
conditions,
absence
toxic
catalysts
risky
solvents,
accessibility
work‐up
process,
greater
yield.
