Frontiers in Chemistry,
Journal Year:
2023,
Volume and Issue:
11
Published: April 13, 2023
This
paper
focused
on
the
synthesis
of
phenylthiocarbamide-grafted
graphene
oxide
(GO)-supported
Cu
complex
(Cu-PTC@GO)
as
a
highly
efficient
and
recyclable
catalyst
by
various
analytical
techniques
such
TG,
FT-IR,
XRD,
BET,
N2
adsorption-desorption
isotherms,
SEM,
EDX,
elemental
mapping
analysis.
Cu-PTC@GO
showed
outstanding
results
in
preparing
imidazoles
with
higher
yields,
reduced
reaction
time,
ease
product
separation,
simple
procedure.
In
addition,
demonstrated
appreciable
recyclability
up
to
five
successive
runs,
there
was
no
substantial
loss
catalytic
performance.
The
result
indicated
that
heterogeneous
base
GO
performed
high
activity
excellent
synthesizing
their
derivatives,
owing
unique
state
GO-supported
copper
complex.
Synthetic Communications,
Journal Year:
2024,
Volume and Issue:
54(9), P. 709 - 734
Published: March 28, 2024
Research
on
benzimidazole
derivatives
is
always
an
attractive
challenge
among
synthetic
chemists
because
are
very
key
and
important
components
in
the
structure
of
many
drugs,
biological
active
molecules,
natural
products.
Benzimidazole
interesting
their
valuable
medicinal
activities,
such
as
anti-bacterial,
anti-cancer,
anti-tuberculosis,
anti-fungal,
pain
killer,
anti-HIV
activities.
During
last
decade,
most
reports
field
catalysts
have
been
related
to
magnetic
nanocatalysts,
which
shows
high
popularity
remarkable
efficiency
this
type
catalyst
performing
chemical
reactions.
Magnetic
nanocatalysts
ideal
both
from
point
view
green
chemistry
economically
they
easily
separated
reaction
mixture
significant
catalytic
activity.
In
review
article,
we
summarized
methods
presented
synthesis
various
based
use
nanomaterials
recoverable
catalysts.
Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
38(6)
Published: April 2, 2024
In
this
study,
the
focus
was
on
synthesizing
metal
chelates
of
Fe(III),
Ni(II),
and
Pd(II)
using
thiazole‐guanidine
derivatives.
Various
spectral
analytical
methods
were
employed
to
elucidate
structural
characteristics
determine
molecular
formulae
these
chelates,
including
infrared
(IR(,
1
H‐NMR
13
C‐NMR,
ultraviolet–visible
(UV–vis),
CHN,
XRD
data,
mass
spectrometry,
thermal
conduction,
measures
magnetism,
used
clarify
structures
compounds.
The
optimized
have
been
scrutinized
by
DFT
method.
Correlation
between
all
spectroscopic
calculation
revealed
an
octahedral‐coordinating
environment
surrounding
Fe
3+
ion,
[Fe
(BTG)
2
(NO
3
)
].NO
.2H
O
Ni
2+
,
[Ni
].H
cation
distorted
square
planner
Pd
[Pd
(COOCH
].2H
cation.
examination
stability
stoichiometry
complexes
in
solution
conventional
techniques
has
incorporated
into
investigation's
scope.
Under
mild
reaction
conditions,
green
technique
carry
out
a
condensation
for
aromatic
aldehyde,
rhodanine,
pipredine,
5‐aminotetrazol
generate
derivatives
6‐piperidin‐dihydro‐thia‐hexaaza‐s‐indacene
comparison
our
new
complexes,
conditions
those
variable
Lewis
acid
catalysts.
general,
tests
conducted
under
high
yield,
speedy,
environmentally
friendly
solvent
(H
O/EtOH)
BTGPd
catalyst
showed
superiority
over
others.
Additionally,
hetero‐catalyst
recovery
proved
successful
could
be
with
same
efficiency
up
six
times
before
started
decrease.
effectiveness
catalytic
procedure
validated
through
thorough
density
functional
theory
(DFT).
analysis
showcased
distinctive
complex
proposed
logical
mechanisms
that
elucidated
crucial
physical
parameters
responsible
superior
performance
complex.
ChemistrySelect,
Journal Year:
2023,
Volume and Issue:
8(10)
Published: March 9, 2023
Abstract
The
benzene
ring
is
fused
to
the
4
and
5
positions
of
imidazole
in
bicyclic
heterocyclic
aromatic
compound
known
as
benzimidazole.
Benzimidazole
an
important
scaffold
exhibiting
a
wide
range
biological
pharmacological
properties
plays
crucial
role
drug
design.
It
synthesized
by
straightforward
nucleophilic
substitution
reaction
condensation
method
between
o‐phenylenediamine
carbonyl
under
various
conditions.
In
recent
years
benzimidazole
have
gained
more
attention
chemistry
due
their
biomedical
importance.
This
study
focuses
on
synthesis
derivatives
numerous
homogeneous
catalysts
related
from
s‐
block,
p‐
transition
metal,
inner
metal
environmentally
benign
synthetic
approaches,
via
heterogeneous
catalyst
metal‐free
has
several
applications
pharmaceuticals,
agrochemicals
fine
chemicals.
Its
scaffolds
are
omnipresent
bioactive
natural
products
pharmaceutically
compounds.
review
highlights
approaches
studies
reported
year
2020
onwards.
Applied Organometallic Chemistry,
Journal Year:
2022,
Volume and Issue:
36(11)
Published: Aug. 30, 2022
The
in
situ
photocatalytic
oxidation
of
aromatic
alcohols
to
aldehydes
by
air
under
visible‐light‐driven
condition
is
an
attractive
and
beneficial
route
regarding
environmental
crises
worldwide
energy
economy.
Herein,
CuO–melem–heteropolyacid
nanophotosensitizer
disclosed
as
efficient
heterostructured
nanocomposite
involving
H
5–n
PW
10
V
2
O
40
n−
…
(melem–NH
3
+
)
n
ionic
liquid,
successfully
prepared
via
a
facile
straightforward
procedure.
This
characterized
employing
routine
techniques
such
X‐ray
diffraction
(XRD),
Fourier
transform
infrared
(FT‐IR),
diffuse
reflectance
spectra
(DRS),
transmission
electron
microscopy
(TEM),
photoelectron
spectroscopy
(XPS),
field
emission
scanning
(FE‐SEM),
Brunauer–Emmett–Teller
(BET).
resultant
exhibited
superior
efficacy
than
its
pristine
melem,
HPA,
CuO
constituents
the
photo‐oxidation
benzylic
fast
condensation
with
o
‐phenylenediamine
generate
range
2‐substituted
benzimidazoles,
important
precursors
synthesis
pharmaceuticals
illumination
green
laser
light
(λ
535
nm).
study
suggests
radical
pathway
reactive
species
•O
−
OH•
together
h
process.
Stability
reusability
experiments
along
hot
filtration
test
ensured
sufficient
reproducibility
nanophotocatalyst
reaction
medium.
At
final
part
this
study,
vitro
cellular
cytotoxicity
nanohybrid
material
was
evaluated
on
A549
human
lung
cancer
cell
line
MTT
assay.
distinct
reduction
viability
affirmed
nanomaterial
against
performed
line.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: June 10, 2023
Abstract
Herein,
a
new
heterogeneous
catalytic
system
through
modification
of
urea
functionalized
magnetic
nanoparticles
with
choline
chloride
[Fe
3
O
4
@SiO
2
@urea-riched
ligand/Ch-Cl]
was
designed
and
synthesized.
Then,
the
synthesized
Fe
ligand/Ch-Cl
characterized
by
using
FT-IR
spectroscopy,
FESEM,
TEM,
EDS-Mapping,
TGA/DTG
VSM
techniques.
After
that,
usage
investigated
for
synthesis
hybrid
pyridines
sulfonate
and/or
indole
moieties.
Delightfully,
outcome
satisfactory
applied
strategy
represents
several
advantages
such
as
short
reaction
times,
convenience
operation
relatively
good
yields
obtained
products.
Moreover,
behavior
formal
homogeneous
DESs
target
product.
In
addition,
cooperative
vinylogous
anomeric-based
oxidation
pathway
suggested
rational
mechanism
pyridines.
