Synthetic Communications,
Год журнала:
2024,
Номер
54(8), С. 672 - 693
Опубликована: Март 20, 2024
Polyethyleneimine-supported
cobalt
(II)
chloride
as
a
novel
polymeric
nanocomposite
acidic
catalyst
for
the
one-stage
transesterification
reaction
of
ethyl
acetate
with
various
alcohols
is
reported.
The
was
characterized
by
Fourier
transform
infrared
spectroscopy,
X-ray
powder
diffraction,
transmission
electron
microscopy,
scanning
dynamic
light
scattering
technique,
and
thermal
gravimetric
analysis.
Furthermore,
inductively
coupled
plasma
atomic
absorption
spectroscopy
were
used
to
determine
quantity
Cobalt
nanoparticles
in
catalyst.
By
adding
(0.10
g,
0.20
mol%)
n-hexane/chloroform
(5.0
cm3)
solvent
under
reflux
conditions,
studies
demonstrated
successful
reactions
excellent
yields
(80–98%)
short
times
(0.50–1.30
h)
using
substrates
on
scale
1.0
mmol.
Seven
consecutive
could
be
performed
without
significantly
decreasing
its
activity.
most
noteworthy
aspects
this
process
are
low
cost,
safety,
environmental
friendliness
due
catalyst's
non-toxicity,
straightforward
operation,
effective
outcomes.
Heliyon,
Год журнала:
2024,
Номер
10(23), С. e40451 - e40451
Опубликована: Ноя. 20, 2024
Greener
and
sustainable
synthetic
strategies
have
been
evolving
as
the
demanding
domain
of
organic
synthesis
during
last
decade.
Green
involves
development
method
that
decrease
or
eliminate
use
hazardous
chemicals,
make
renewable
recyclable
resources.
By
incorporating
fundamentals
methodologies
green
synthesis,
chemists
ability
to
develop
valuable
molecular
frameworks
which
also
demonstrate
a
strong
commitment
environmental
sustainability.
In
this
context,
nanoparticle
has
garnered
significant
interest
due
its
various
features,
adhering
principles
synthesis.
Specifically,
magnetic
nanoparticles
trending
extensive
uses
in
throughout
past
The
role
an
irreplaceable
place
biologically
named
quinoline.
Quinoline
are
considered
privileged
structure
among
compounds
offer
promising
avenue
for
identifying
lead
structures
search
new
molecules
(Saquinavir,
Imiquimod
Reabamipide)
having
potential
medicinal
values
other
important
prospects.
So,
it's
always
indeed
chemist
active
by
current
manuscript
consolidates
existing
research
on
properties
environment-friendly
generating
extended
range
quinoline
derivatives.
Synthetic Communications,
Год журнала:
2023,
Номер
53(22), С. 1935 - 1953
Опубликована: Сен. 22, 2023
AbstractSilica-coated
Fe3O4
nanoparticles
bound
to
Glucono-delta-lactone
(GDL)
magnetic
(Fe3O4@SiPr@GDL
MNPs)
were
prepared
and
characterized
by
TEM,
EDX,
TGA/DTG,
Zeta
Potential,
BET,
FE-SEM,
XRD,
FTIR
VSM.
Fe3O4@SiPr@GDL
MNPs
have
been
shown
be
effective
catalysts
for
the
synthesis
of
isoxazol-5(4H)-one
system.
The
advantages
this
method
are
efficiency,
clean
protocol,
easy
handling,
high
yield,
shorter
reaction
time
availability
catalyst.
catalyst
can
rapidly
recovered
reused
six
cycles
with
almost
constant
activity.
newly
synthesized
compounds
1H
NMR,
13C
NMR
spectra
elemental
analysis.Keywords:
3-Methyl-isoxazolFe3O4@SiPr@GDLhydroxylamine
hydrochloridethree-component
Disclosure
statementNo
potential
conflict
interest
was
reported
author(s).Additional
informationFundingFinancial
support
from
Research
Council
Rasht
Branch,
Islamic
Azad
University,
Rasht,
Iran
is
sincerely
acknowledged.
Synthetic Communications,
Год журнала:
2024,
Номер
54(8), С. 672 - 693
Опубликована: Март 20, 2024
Polyethyleneimine-supported
cobalt
(II)
chloride
as
a
novel
polymeric
nanocomposite
acidic
catalyst
for
the
one-stage
transesterification
reaction
of
ethyl
acetate
with
various
alcohols
is
reported.
The
was
characterized
by
Fourier
transform
infrared
spectroscopy,
X-ray
powder
diffraction,
transmission
electron
microscopy,
scanning
dynamic
light
scattering
technique,
and
thermal
gravimetric
analysis.
Furthermore,
inductively
coupled
plasma
atomic
absorption
spectroscopy
were
used
to
determine
quantity
Cobalt
nanoparticles
in
catalyst.
By
adding
(0.10
g,
0.20
mol%)
n-hexane/chloroform
(5.0
cm3)
solvent
under
reflux
conditions,
studies
demonstrated
successful
reactions
excellent
yields
(80–98%)
short
times
(0.50–1.30
h)
using
substrates
on
scale
1.0
mmol.
Seven
consecutive
could
be
performed
without
significantly
decreasing
its
activity.
most
noteworthy
aspects
this
process
are
low
cost,
safety,
environmental
friendliness
due
catalyst's
non-toxicity,
straightforward
operation,
effective
outcomes.
