Langmuir,
Journal Year:
2024,
Volume and Issue:
40(43), P. 22773 - 22786
Published: Oct. 18, 2024
In
the
present
work,
a
novel
Cu(II)
complex
containing
10-phenanthroline-5,6-dione
(phen-dione)
and
acetylacetone
(acac)
was
prepared
via
solid-phase
synthesis
on
silica-modified
hercynite
magnetic
nanoparticles
(MNPs).
The
resulting
structure
underwent
thorough
structural
analysis
using
diverse
instrumental
techniques.
catalytic
potential
of
synthesized
successfully
demonstrated
in
2-amino-3-cyano-4
RSC Advances,
Journal Year:
2022,
Volume and Issue:
13(1), P. 674 - 687
Published: Dec. 23, 2022
In
this
study,
a
heterogeneous
catalyst,
PMA@MIL-53
(Fe)
(MIL
⇒
Matériaux
de
l'Institut
Lavoisier),
has
been
used
to
replace
the
usual
mineral
acids
such
as
sulfuric
acid.
A
wide
variety
of
nitration
methods
require
use
mixture
concentrated
nitric
acid
and
acid,
which
result
in
producing
large
amount
acidic
waste.
During
recent
years,
system
for
aromatic
compounds
highly
considered
by
chemists
due
some
specific
advantages,
i.e.
easy
separation
product
from
reaction
mixture,
possibility
recycling
reusing
etc.
Herein,
catalyst
was
synthesized
using
metal-organic
framework
heteropoly
phosphomolybdic
The
prepared
similar
method
MIL-53
synthesis.
Afterwards,
FeCl3·6H2O
1,4-benzene
dicarboxylic
(BDC)
dimethylformamide
solution
were
placed
an
ultrasound
bath
and,
then,
HPA
(heteropoly
acid)
added
mixture.
PMA
(phosphomolybdic
encapsulation
confirmed
various
analysis.
Under
optimal
conditions,
catalytic
activity
evaluated
phenol
under
ultrasonic
waves.
Besides,
ratio
two
products
ortho
para
obtained
GC.
Optimum
conditions
reached
after
15
minutes,
way
that
loaded
0.02
g
efficiencies
ortho-nitrophenol
nitrophenol
54.98
45.01,
respectively.
RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(16), P. 10667 - 10680
Published: Jan. 1, 2023
In
this
paper,
we
aim
at
synthesizing
a
new
nanocomposite
material
in
which
bentonite
acts
as
nucleation
site
for
MgFe2O4
nanoparticles
precipitation
the
attendance
of
an
external
magnetic
field
(MgFe2O4@Bentonite).
Moreover,
poly(guanidine-sulfonamide),
novel
kind
polysulfonamide,
was
immobilized
on
surface
prepared
support
(MgFe2O4@Bentonite@PGSA).
Finally,
efficient
and
environment-friendly
catalyst
(containing
nontoxic
copper,
MgFe2O4@Bentonite)
by
anchoring
copper
ion
MgFe2O4@Bentonite@PGSAMNPs.
The
synergic
effect
(MNPs),
bentonite,
PGSA,
species
observed
while
conducting
control
reactions.
synthesized
Bentonite@MgFe2O4@PGSA/Cu,
characterized
using
energy-dispersive
X-ray
spectroscopy
(EDAX),
scanning
electron
microscopy
(SEM),
transmission
(TEM),
thermogravimetric
analysis
(TGA),
diffraction
(XRD),
Fourier-transform
infrared
(FT-IR)
spectroscopy,
applied
highly
heterogeneous
to
synthesize
1,4-dihydropyrano[2,3-c]
pyrazole
yielding
up
98%
10
minutes.
Excessive
yield,
quick
reaction
time,
water
solvent,
turning
waste
wealth,
recyclability
are
important
advantages
present
work.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: April 15, 2024
Abstract
In
this
research,
a
new
and
eco-friendly
heterogeneous
catalyst
(ND@Tannicacid-Cu)
was
synthesized
based
on
nanodiamond
copper
tannic
acid
via
esterification
process.
The
as-prepared
characterized
by
Fourier
transforms
infrared
spectroscopy
(FT-IR),
energy
dispersive
X-ray
(EDX),
scanning
electron
microscopy
(SEM),
diffraction
(XRD)
methods.
catalytic
efficacy
of
the
intended
examined
one-step
three-component
reaction
1,4-benzodiazepine
derivatives
from
mixture
ortho-phenylenediamine,
aromatic
aldehydes,
dimedone
under
mild
conditions.
all
instances,
corresponding
2,4-benzodiazepines
were
with
high
efficiency,
short
time,
straightforward
work
up
procedure,
no
requirement
for
column-chromatography,
cost-effective
catalyst.
easily
recycled
using
fillers,
it
can
be
reused
eight
cycles
without
significantly
diminishing
its
performance.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: May 25, 2024
Hercynite
magnetic
nanoparticles
were
produced
through
the
co-precipitation
of
ferrous
and
aluminum
cations.
The
surface
hercynite
was
respectively
coated
with
silica,
2,4,6-trichloro-1,3,5-triazine,
1H-pyrazole-3,5-dicarboxylic
acid
to
provide
a
suitable
substrate
for
Pd(II)
loading,
furnishing
Pd@Her-TCT-PDA.
Subsequently,
introduced
reduced
Pd(0)
using
NaBH
RSC Advances,
Journal Year:
2022,
Volume and Issue:
12(53), P. 34425 - 34437
Published: Jan. 1, 2022
Mesoporous
materials
have
been
the
subject
of
intense
research
regarding
their
unique
structural
and
textural
properties
successful
applications
in
various
fields.
Synthetic Communications,
Journal Year:
2023,
Volume and Issue:
53(18), P. 1469 - 1505
Published: June 28, 2023
Medicinal
chemistry
and
synthetic
organic
rely
primarily
on
C-N
bonds
for
their
structures
because
a
variety
of
biologically
active
compounds,
including
natural
products
molecules,
contain
N-heterocyclic
as
subunits,
they
have
been
assigned
privileged
position
in
drug
development
due
to
improved
solubility
ability
form
salts,
both
which
contribute
oral
absorption
bio-availability.
In
recent
years,
the
copper-catalyzed
cross-coupling
reactions
progressed
rapidly
with
inexpensive,
readily
available,
insensitive
air,
low-toxicity
copper
catalysts.
The
coupling
strategy
has
used
make
N-heterocycles,
wide
range
applications
investigated
excellent
functional
group
tolerance.
current
review
explores
direct
bond
formation
cyclization
approaches
fabricate
triazole,
tetrazole,
various
other
derivatives
that
are
catalyzed
by
magnetically
retrievable
(II)-impregnated
silica-coated
iron
oxide
nanocatalysts.
