RSC Advances,
Год журнала:
2023,
Номер
13(24), С. 16078 - 16090
Опубликована: Янв. 1, 2023
In
recent
years,
magnetic
nanocatalysts
have
been
recommended
as
one
of
the
best
catalysts
by
chemists.
Among
nanoparticles,
Fe3O4
nanoparticles
are
highly
suitable
due
to
their
properties,
chemical
stability
and
low
toxicity.
These
can
be
separated
via
separation
after
process
is
over
reused
regeneration.
Owing
importance
1,3,5-triazine
derivatives
in
pharmaceutical
medicinal
chemistry,
synthesis
these
compounds
always
important
goals
organic
this
research
work,
we
first
successfully
synthesized
CuBr2
immobilized
on
functionalized
with
Dop-OH
(prepared
reaction
MNP-dopamine
2-phenyloxirane)
nanocomposites
then
investigated
catalytic
application
an
oxidative
coupling
amidine
hydrochlorides
alcohols
air.
Recycling
experiments
clearly
revealed
that
MNP-[Dop-OH]-CuBr2
could
for
at
least
8
times
without
much
loss
activity.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(8), С. 1763 - 1769
Опубликована: Март 1, 2024
Abstract
The
direct
conversion
of
specific
C−H
bonds
to
C−Si
in
alkanes
or
aromatics
via
catalytic
methods
has
attracted
growing
research
interest.
Herein,
we
report
the
preparation
a
new
iridium
catalyst
supported
on
naphthyridine‐based
porous
organic
polymer
and
its
successful
application
dehydrogenative
silylation
2‐arylphenols
alcohol
hydrosilanes
access
ring‐fused
oxasilacycles.
synthetic
method
exhibits
broad
substrate
scope
good
functional
group
compatibility
while
avoiding
use
hydrogen
acceptors.
In
addition,
this
could
be
easily
recovered
from
reaction
system
reused
for
at
least
seven
times
without
apparent
deactivation.
This
provides
insights
further
design
heterogeneous
nanocatalysts
contributes
synthesis
silicon‐substituted
molecules.
Green Chemistry,
Год журнала:
2024,
Номер
26(5), С. 2592 - 2598
Опубликована: Янв. 1, 2024
A
novel
copper-based
biomass-carbon
aerogel
catalyst
was
prepared
as
a
highly
efficient
and
selective
for
maleimides
reduction
the
first
time
with
excellent
catalytic
activity,
chemo-selectivity,
recyclability.
Organic Letters,
Год журнала:
2022,
Номер
24(28), С. 5209 - 5213
Опубликована: Июль 14, 2022
A
nitrogen-doped
carbon
supported
nanocobalt
catalyst
was
developed
and
successfully
applied
for
the
hydrogen-transfer
coupling
of
quinolinium
salts
tetrahydroquinoline
compounds.
The
selective
C6
sites
tetrahydroquinolines
(THQs)
with
α
quinoline
generated
a
series
2-substituted
N-alkyl-tetrahydroquinolines.
This
catalytic
conversion
method,
which
can
be
employed
to
synthesize
various
functionalized
tetrahydroquinolines,
has
several
advantages
that
include
excellent
hydrogen
transfer
selectivity,
reusable
inexpensive
catalyst,
environmental
friendliness.
Organic Letters,
Год журнала:
2023,
Номер
25(44), С. 7974 - 7978
Опубликована: Окт. 31, 2023
Selective
C–H
annulation
with
alkynes
is
one
of
the
most
useful
tools
to
synthesize
heterocycles.
Herein,
we
developed
novel
porous
organic
polymers
supported
ruthenium
(POPs-Ru)
as
highly
efficient
catalysts
for
cascade
aromatization
quinoxalin-2(1H)-one
and
alkynes.
Both
terminal
internal
were
successfully
transferred
furo[2,3-b]quinoxaline
derivatives
good
functional
group
tolerance
high
regioselectivity
by
using
POPs-Ru
catalysts.
Furthermore,
catalyst
exhibited
activity
could
be
reused
at
least
five
times
without
obvious
deactivation
this
coupling
reaction.
This
study
offers
an
important
platform
immobilization
molecular
metal
functionalization.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(9), С. 1978 - 1982
Опубликована: Март 7, 2024
Abstract
A
phosphine‐mediated
cyclization
of
benzo[c][1,2]dithiol‐3‐ones
and
amidines
is
demonstrated
herein.
Triphenylphosphine
was
harnessed
as
the
activating
reagent
to
facilitate
ring‐opening
via
S−S
bond
cleavage.
This
PPh
3
‐Promoted
reaction
enabled
forge
a
diverse
array
1,3‐benzothiazones
in
decent
yields
with
wide
substrate
scope
under
mild
conditions.
