Zeitschrift für Kristallographie - Crystalline Materials,
Год журнала:
2023,
Номер
238(9-10), С. 343 - 348
Опубликована: Авг. 25, 2023
Abstract
The
copper
borate
of
CuB
2
O
4
in
tetragonal
form
was
successfully
synthesized
as
a
single-phase
by
using
solid-state
method
without
any
modifying
agent.
For
the
designed
experimental
procedure,
optimized
reaction
conditions
were
estimated
temperature
950
°C,
time
240
min,
argon
atmosphere
and
Cu:B
ratio
1:5.
possible
mechanism
for
both
boron
sources
boric
acid
oxide.
In
sets,
lower
ratios
supported
formation.
use
source,
higher
yield
percentages
(98
%)
particle
sizes
determined.
micron-scale
rounded
particles
observed
morphological
analyses
shaped
homogeneity
oxide
source.
specific
FT-IR
peaks
at
band
values
1190,
1035,
988,
945,
890,
695,
631,
540
479
cm
−1
.
results
highlighted
probable
synthesis.
The Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 23, 2025
This
study
describes
an
efficient
electrochemical
synthetic
method
for
C-3
alkoxycarbonylation
of
2H-indazoles
with
carbazates
under
constant
current
in
undivided
cell
without
the
need
external
oxidants
or
metal
catalysts.
methodology
exhibits
broad
functional
group
compatibility,
affording
products
good
yields.
Easy
scalability
and
drug
diversification
demonstrate
efficacy
applicability
this
protocol.
Molecules,
Год журнала:
2022,
Номер
27(15), С. 4942 - 4942
Опубликована: Авг. 3, 2022
Designing
new
synthetic
strategies
for
indazoles
is
a
prominent
topic
in
contemporary
research.
The
transition-metal-catalyzed
C-H
activation/annulation
sequence
has
arisen
as
favorable
tool
to
construct
functionalized
indazole
derivatives
with
improved
tolerance
medicinal
applications,
functional
flexibility,
and
structural
complexity.
In
the
current
review
article,
we
aim
outline
summarize
most
common
protocols
use
synthesis
of
target
via
one-step
derivatives.
We
categorized
text
according
metal
salts
used
reactions.
Some
were
catalysts,
others
may
have
been
oxidants
and/or
activation
precatalysts.
roles
some
corresponding
reaction
mechanisms
not
identified.
It
can
be
expected
that
synopsis
will
provide
accessible
practical
guidance
colleagues
interested
subject.
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.
Mini-Reviews in Organic Chemistry,
Год журнала:
2023,
Номер
21(2), С. 216 - 228
Опубликована: Янв. 3, 2023
Abstract:
Copper
complexes
have
biological
applications
as
well
catalytic
importance
in
performing
organic
reactions.
Besides
finding
utilities
metalloproteins,
enzymes,
or
molecular
magnetism,
they
been
used
extensively
catalysts
the
formation
ofcarbon–carbon
carbon–
heteroatom
bonds,
addition
to
many
other
This
has
achieved
by
rational
selection
of
ligands
with
suitable
coordination
sites
for
attaining
ideal
geometries.
The
binding
one
such
ligand,
bisbenzimidazole,
copper
results
varied
shapes,
structures,
and
activities,
enhancing
their
potential
hence
useful
applications.
review
describes
bisbenzimidazole
based
(II)/(I)
various
transformations.
It
also
provides
an
in-depth
knowledge
mechanistic
pathways
transformations
involving
multipurpose
utility
catalysts,
which
may
help
development
improved
future.
Journal of the Turkish Chemical Society Section A Chemistry,
Год журнала:
2024,
Номер
11(2), С. 461 - 466
Опубликована: Янв. 9, 2024
The
effect
of
ultrasonic
treatment
on
liquid-state
production
and
the
characteristic
features
synthesized
powder
were
studied
in
conditions.
In
sonochemical
synthesis,
operation
parameters
mole
ratio,
reaction
temperature,
time
optimized.
synthesis
was
achieved
moderate
conditions
such
as
ratio
copper:
sodium:
boron
(Cu:
Na:
B)
1:2:1,
70°C
2.5
minutes.
prepared
samples
identified
copper
borate
(Cu(BO2)2)
with
diffraction
file
number
"00-001-0472".
yields
also
increased
from
50%
to
71.5%
modification
experimental
procedure.
specific
FT-IR
peaks
observed
at
1090,
985,
872,
781
731
cm-1
band
values.
morphological
analyses,
agglomerations
multi-angular
particles
seen.
results
showed
affirmative
effects
possible
use
both
practical
increase
characteristics.
