Magnetic BiFeO3 nanoparticles: a robust and efficient nanocatalyst for the green one-pot three-component synthesis of highly substituted 3,4-dihydropyrimidine-2(1H)-one/thione derivatives
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Sept. 27, 2024
Language: Английский
Direct Lawsone O-Alkylation Employing Sulfonic Acid-Functionalized Chitosan as a Biodegradable Organocatalyst
ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(4), P. 4163 - 4169
Published: Jan. 21, 2025
An
environmentally
friendly,
cheap,
and
scalable
protocol
for
direct
lawsone
O-alkylation
employing
different
alcohols
using
acid
chitosan
(CS–SO3H)
as
a
heterogeneous
organocatalyst
is
described
herein
the
first
time.
A
wide
variety
of
can
be
converted
with
functional
group
tolerance
high
atomic
economy.
Significantly,
catalyst
recycling
method
chemoselectivity
were
also
assessed.
Language: Английский
Phyto-fabrication and characterization of ZnFe2O4@AC nanocomposite catalyst via green pathway and its application for the synthesis of some Quinazolin-4(1H)-one derivatives
Sampat R. Shingda,
No information about this author
Pranali Hadole,
No information about this author
Hemant M. Alone
No information about this author
et al.
Polyhedron,
Journal Year:
2025,
Volume and Issue:
unknown, P. 117438 - 117438
Published: Feb. 1, 2025
Language: Английский
A supramolecular magnetic and multifunctional Titriplex V-grafted chitosan organocatalyst for the synthesis of acridine-1,8-diones and 2-amino-3-cyano-4H-pyran derivatives
Nanoscale Advances,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
In
this
research,
a
new
supramolecular
magnetic
modified
chitosan,
namely,
Fe
Language: Английский
Magnetic DL-methionine grafted to chitosan by EDTA linker nanomaterial: a highly efficient multifunctional organocatalyst for the synthesis of highly substituted imidazole derivatives under green conditions
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 18, 2024
Abstract
In
this
research,
a
novel
protocol
for
the
synthesis
of
imidazole
derivatives
with
various
substitutions
has
been
investigated
in
presence
new
and
highly
effective
magnetic
decorated
DL-methionine
amino
acid
grafted
onto
chitosan
backbone
by
using
EDTA
linker
(CS
−
MET@Fe
3O
4)
under
green
chemistry
conditions.
The
CS
MET@Fe
3O
4
nanocomposite
was
properly
characterized
FTIR,
EDX,
XRD,
FESEM,
TGA
VSM
spectroscopic,
microscopic,
or
analytical
methods.
used
as
efficient
heterogeneous
organocatalyst
wide
range
three-
four-substituted
derivatives,
an
important
pharmaceutical
scaffold,
through
multicomponent
reactioins
(MCRs)
strategy.
multifunctional
nanocatalyst
exhibited
high
catalytic
activity,
selectivity,
stability
to
promote
reactions
benzoin
benzyl,
different
aldehyde
ammonim
acetate
well
aromatic
aliphatic
amine
EtOH
solvent.
Key
advantages
present
are
excellent
yields,
use
low
loading
renewable,
bio-based
biodegredable
chitosan-
acid-based
nanomaterial,
simple
procedure
preparation
nanomaterial
imoidazole
derivatives.
addition,
catalyst's
properties,
including
its
properties
appropriate
surface
area
characteristicscontribute
performance.
Fuerthermore,
can
be
up
six
cycles
only
slight
decrease
activity.
Language: Английский
Methionine-ethylenediaminetetraacetic acid-chitosan magnetic nanocomposite: a multifunctional organocatalyst for green heteroannulation of imidazoles
Carbohydrate Polymer Technologies and Applications,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100638 - 100638
Published: Dec. 1, 2024
Language: Английский