Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(4)
Опубликована: Фев. 7, 2024
A
highly
efficient,
green,
and
multicomponent
reaction
method
has
been
developed
for
the
diversity‐oriented
synthesis
of
32
spirooxindole
derivatives
via
formation
cascade
C–N,
C–O,
C–S
bonds.
The
involved
starch‐capped
zinc
oxide
nanocomposite
as
an
effective
heterogeneous
catalyst
with
synergistic
application
ultrasound
on‐water
synthesis.
By
employing
this
approach,
all
desired
products
were
successfully
obtained
high
yields
comparatively
short
times.
Furthermore,
employed
in
process
exhibited
excellent
recyclability,
allowing
its
recovery
reuse
up
to
eight
consecutive
runs
without
any
loss
catalytic
activity.
greenness
protocol
was
evaluated
by
various
green
metrics
such
E‐factor
eco‐score,
result
showed
acceptability
present
organic
Polycyclic aromatic compounds,
Год журнала:
2023,
Номер
44(2), С. 994 - 1010
Опубликована: Март 13, 2023
Among
the
important
needs
of
human
societies
are
reduction
biological
pollution
and
use
environmentally
friendly
inexpensive
solvents.
For
synthesis
medicinally
heterocycles,
there
is
a
need
for
an
easy,
efficient,
catalytic
protocol
through
multicomponent
reaction
(MCR).
In
this
regard,
construction
multi-functional
composites
has
been
considered.
A
novel
magnetic
graphite
carbon
nitride
decorated
by
tri-vanadium
substituted
Dawson-type
heteropolytungstate
nanocomposite
(C3N4/Fe3O4@P2W15V3)
effectively
synthesized
characterized
prevalent
functional
analysis.
This
heterogeneous
catalyst
produced
various
tetrahydrobenzo[b]pyran
derivatives
in
presence
ethanol
as
green
solvent.
advantages
observed
method
reusable
that
easily
isolated
provides
high
yield
products
very
short
time
with
purity.
Catalysts,
Год журнала:
2023,
Номер
13(7), С. 1034 - 1034
Опубликована: Июнь 24, 2023
Multi-component
reactions
for
the
construction
of
heterocycles
have
been
fascinated
by
microwave
energy
as
an
alternative
technique
heating,
owing
to
advantages
over
traditional
reflux
methods.
The
heterogeneous
catalysts
contribute
significantly
towards
recycling,
harmless,
easy
filtration,
catalyst
preparation,
more
life
span,
abundance,
and
product
yields.
With
novel
creative
uses
in
organic
peptide
synthesis,
polymer
chemistry,
material
sciences,
nanotechnology,
biological
processes,
usage
has
rapidly
increased
during
past
20
years.
This
article
covers
multicomponent
involving
chromenes,
pyridines,
pyrroles,
triazoles,
pyrazoles,
tetrazoles,
trans
cis
julolidines
using
under
microwave.
It
provides
overview
contemporary
microwave-assisted
catalytic
reactions.
Microwave
chemistry
is
now
established
technology
with
several
regarding
reaction
rate
production
yield,
improving
savings
confirmed
many
applications.
Due
widespread
curiosity
medicinal
heterogeneously
catalysed
irradiation
explored
reduce
time
energy.
By
considering
various
aspects
economy,
eco-friendly,
user-friendly
factors,
this
review
focuses
on
recent
advances
multi-component
irradiation.
also
discusses
benefits
limitations
conditions
yields
from
literature
reports
five
Abstract
Nitrogen‐containing
heterocycles
such
as
imidazoles,
thiazoles,
and
oxazoles
play
a
significant
role
in
the
fields
of
biological
pharmaceutical
chemistry.
These
compounds
were
widely
used
for
agrochemical,
pesticide,
medicinal,
industrial
applications.
Due
to
wide
spectrum
structural
diversity
well
activity
N
‐heterocycles,
plethora
reports
on
their
synthesis
have
appeared
last
few
decades.
However,
developments
various
bond‐forming
strategies
C−C,
C−N,
C−O,
C−S,
N−N,
C−H
activation,
been
powerful
synthetic
tool
derive
copious
‐heterocycles.
The
most
prominent
fascinating
imidazole,
thiazole,
oxazoles,
benzimidazole
moieties
by
C−C
C−N
coupling
reactions,
multi‐component
cycloaddition
etc.
are
discussed
this
study.
studies
demonstrated
enormous
potential
methods
accelerating
modern
chemical
establishing
molecular
beauty
through
bonding.
aspects
methodologies,
like
optimized
conditions,
substrate
scope,
mechanistic
investigations,
detail.
Abstract
Asymmetric
multicomponent
reactions
are
considered
as
efficient
protocols
for
constructing
complex
chiral
molecules
because
of
their
step‐
and
atom‐economy.
Nickel‐catalyzed
asymmetric
three‐component
dicarbofunctionalization
alkenes
has
been
well
developed
in
recent
years,
which
is
used
the
area
total
synthesis
natural
products
late‐stage
modification
drugs
rapid
incorporation
sp
3
‐enriched
carbon
centers.
In
this
concept,
significant
breakthroughs
field
summarized,
together
with
related
mechanisms.
Moreover,
remaining
challenges
potential
opportunities
also
highlighted.
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(4)
Опубликована: Фев. 7, 2024
A
highly
efficient,
green,
and
multicomponent
reaction
method
has
been
developed
for
the
diversity‐oriented
synthesis
of
32
spirooxindole
derivatives
via
formation
cascade
C–N,
C–O,
C–S
bonds.
The
involved
starch‐capped
zinc
oxide
nanocomposite
as
an
effective
heterogeneous
catalyst
with
synergistic
application
ultrasound
on‐water
synthesis.
By
employing
this
approach,
all
desired
products
were
successfully
obtained
high
yields
comparatively
short
times.
Furthermore,
employed
in
process
exhibited
excellent
recyclability,
allowing
its
recovery
reuse
up
to
eight
consecutive
runs
without
any
loss
catalytic
activity.
greenness
protocol
was
evaluated
by
various
green
metrics
such
E‐factor
eco‐score,
result
showed
acceptability
present
organic
