Polystyrene-Bound AlCl3 - a Catalyst for the Solvent-Free Synthesis of Aryl-Substituted Tetrazoles
Catalysis Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
We
present
photopolymerized
polystyrene
as
a
support
for
AlCl3,
which
is
used
the
synthesis
of
tetrazoles
under
solvent-free
conditions.
Язык: Английский
Copper complex of bis(pyridin-3-ylmethyl)carbamimidothioate on mesoporous KIT-6 as a homoselective and stable nanocatalyst for the synthesis of tetrazoles
Inorganic Chemistry Communications,
Год журнала:
2025,
Номер
unknown, С. 114454 - 114454
Опубликована: Март 1, 2025
Язык: Английский
A Recyclable Heterogeneous Cu/Co/Fe Trimetallic Oxide Nanocatalyst for the Synthesis of 5-Substituted-1H-Tetrazoles
Deleted Journal,
Год журнала:
2024,
Номер
48(3), С. 599 - 608
Опубликована: Май 4, 2024
5-Substituted-1H-tetrazoles
were
synthesized
via
the
[3
+
2]
cycloaddition
of
NaN3
and
several
nitriles
using
Cu1-xCoxFe2O4
(x
=
0,
0.25,
0.5,
0.75,
1)
nanocatalysts
in
N,N-dimethylformamide
(DMF)
at
120
°C.
The
Cu0.5Co0.5Fe2O4
nanospinel
ferrite
is
most
active
nanocatalyst
comparison
to
other
prepared
nanocatalysts.
This
was
easily
separated
from
reaction
mixture
an
external
magnet
reused
for
five
cycles
without
any
appreciable
loss
catalytic
activity.
cost-effective
easy
availability
catalyst,
simple
methodology,
high
yield,
workup
are
extra
advantages
this
method.
structural
characteristics
catalyst
investigated
by
scanning
electron
microscopy,
X-ray
diffraction,
vibrating
sample
magnetometer
analyses.
Язык: Английский
Zirconium Phosphates and Phosphonates: Applications in Catalysis
Catalysts,
Год журнала:
2024,
Номер
14(10), С. 733 - 733
Опубликована: Окт. 19, 2024
This
review
covers
recent
advancements
in
the
use
of
zirconium
phosphates
and
phosphonates
(ZrPs)
as
catalysts
or
catalyst
supports
for
a
variety
reactions,
including
biomass
conversion,
acid–base
catalysis,
hydrogenation,
oxidation,
C-C
coupling
from
2015
to
present.
The
discussion
emphasizes
intrinsic
catalytic
properties
ZrPs,
focusing
on
how
surface
acidity,
hydrophobic/hydrophilic
balance,
textural
properties,
particle
morphology
influence
their
performance
across
various
reactions.
Additionally,
this
thoroughly
examines
ZrPs
species,
ranging
organometallic
complexes
metal
ions
noble
metals
oxide
nanoparticles.
In
these
applications,
not
only
enhance
dispersion
stabilization
active
species
but
also
facilitate
recovery
reuse
due
robust
immobilization
solid
support.
dual
functionality
underscores
importance
promoting
efficient,
selective,
sustainable
processes,
making
them
essential
advancement
green
chemistry.
Язык: Английский
Catalytic Application of Cs‐Substituted Phosphotungstic Acid (CsxH3‐xPW12O40)‐Mesoporous Zirconium Phosphate (m‐ZrP) Nanocomposite Towards Synthesis of Structurally Diverse Tetrazole Moieties
ChemistrySelect,
Год журнала:
2024,
Номер
9(41)
Опубликована: Окт. 28, 2024
Abstract
The
rational
design
of
a
high
surface
area
heterogeneous
nanocomposite
catalyst
with
well‐defined
acidic
sites
and
structural
porosity
is
promising
approach
potential
application
in
expeditious
synthesis
biologically
active
molecules/scaffolds.
In
this
work,
mesoporous
zirconium
phosphate
(m‐ZrP)
was
synthesized
through
hydrothermal
process
used
as
porous
matrix
for
dispersion
cesium‐exchanged
phosphotungstic
acid
(Cs
x
H
3‐
PW
12
O
40
)
nanoparticles
to
prepare
Cs
‐mZrP
systems.
Various
characterization
techniques,
including
XRD,
UV–vis‐DRS,
FTIR,
FESEM,
HRTEM,
TGA‐DTA,
BET,
TPD,
were
understand
the
structural,
morphological,
properties
composites.
XRD
analysis
revealed
presence
m‐ZrP
cubic
crystalline
phases
materials.
A
microscopic
study
indicated
existence
rod‐shaped
morphology
that
formed
by
coalescence
large
number
spherical
diameters
between
150
200
nm.
over
results
significant
enhancement
medium
strong
sites,
maximum
observed
0.5
‐PTA‐mZrP
composite
(0.406
mmol
g
−1
).
catalytic
activity
nanocomposites
evaluated
rapid
tetrazole
derivatives
[3
+
2]
cycloaddition
reactions
substituted
nitrile
NaN
3
under
mild
conditions.
detailed
optimization
use
DMF
media
afforded
90%
yield
at
120
°C.
Reaction
kinetics
suggested
optimal
exhibited
highest
reaction
rate
2.06
×
10
−3
h
m
−2
towards
formation.
Structurally
diverse
purity
conditions
using
catalyst.
Язык: Английский