Single-Atom Fe-Catalyzed Acceptorless Dehydrogenative Coupling to Quinolines
Yanze Lu,
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Zhu Meiling,
No information about this author
Sanxia Chen
No information about this author
et al.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(33), P. 23338 - 23347
Published: Aug. 6, 2024
A
single-atom
iron
catalyst
was
found
to
exhibit
exceptional
reactivity
in
acceptorless
dehydrogenative
coupling
for
quinoline
synthesis,
outperforming
known
homogeneous
and
nanocatalyst
systems.
Detailed
characterizations,
including
aberration-corrected
HAADF-STEM,
XANES,
EXAFS,
jointly
confirmed
the
presence
of
atomically
dispersed
centers.
Various
functionalized
quinolines
were
efficiently
synthesized
from
different
amino
alcohols
a
range
ketones
or
alcohols.
The
achieved
turnover
number
(TON)
up
10
Language: Английский
Bifunctional Electrodes Enable Efficient Electrochemical Cycling of Quinoline
Zhenye Zhang,
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Xinliang Guo,
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Li Yang
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et al.
Published: Jan. 1, 2025
Language: Английский
Harnessing photocatalytic activity of mesoporous graphitic carbon nitride decorated by copper single-atom catalysts for oxidative dehydrogenation of N-heterocycles
Journal of Colloid and Interface Science,
Journal Year:
2024,
Volume and Issue:
676, P. 485 - 495
Published: July 9, 2024
Language: Английский
Development of a Cobalt Catalyst from ZIF‐67 and Application in the Hydrogenation of N‐Heteroarenes
Xinya Yuan,
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Guangbin Zhou,
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Tianyi Zhou
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et al.
European Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
27(25)
Published: May 18, 2024
Abstract
Hydrogenation
of
N‐heteroarenes
to
saturated
N‐heterocycles
is
an
important
reaction
in
organic
synthesis.
Hydrogen
a
green
reducing
reagent
and
has
been
widely
applied
industrial
production.
The
development
appropriate
catalyst
realize
hydrogenation
at
low
pressure
temperature
desired.
In
this
study,
we
developed
cobalt‐based
derived
from
ZIF‐67
that
exhibits
high
activity
for
N‐heteroarene
under
5–20
bar
hydrogen,
which
relatively
as
compared
reported
catalytic
systems.
This
nano‐cobalt
shows
broad
substrate
scope
can
be
reused
without
obvious
loss.
Language: Английский
Colloidal Bimetallic RuNi Particles and their Behaviour in Catalytic Quinoline Hydrogenation
ChemPlusChem,
Journal Year:
2024,
Volume and Issue:
89(12)
Published: Sept. 13, 2024
Abstract
Colloidal
metal
nanoparticles
exhibit
interesting
catalytic
properties
for
the
hydrogenation
of
(hetero)arenes.
Catalysts
based
on
precious
metals,
such
as
Ru
and
Rh,
promote
this
reaction
efficiently
under
mild
conditions.
In
contrast,
heterogeneous
catalysts
earth‐abundant
metals
can
selectively
hydrogenate
(hetero)arenes
but
require
harsher
Bimetallic
that
combine
are
materials
to
mitigate
drawbacks
each
component.
To
end,
RuNi
bearing
a
phosphine
ligand
were
prepared
through
decomposition
[Ru(η
4
‐C
8
H
12
)(η
6
10
)]
[Ni(η
)
2
]
by
at
85
°C.
Wide
angle
X‐ray
scattering
confirmed
bimetallic
segregated
structure,
with
Ni
predominantly
surface.
Spectroscopic
analyses
revealed
coordinated
surface
both
suggesting,
well,
partial
shell
covering
core.
The
RuNi‐based
nanomaterials
used
in
quinoline
assess
impact
metallic
composition
stabilizing
agent
their
performance.
Language: Английский
Acceptorless ambient-temperature dehydrogenation and reversible hydrogenation of N-heterocycles over single-atom Co-N-C catalysts
Qingqing Li,
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Zhiwei Sun,
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Yilin Wei
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et al.
Applied Catalysis B Environment and Energy,
Journal Year:
2024,
Volume and Issue:
351, P. 123959 - 123959
Published: April 24, 2024
Language: Английский
Nanoparticles of Cobalt for the Reversible (De)Hydrogenation and Oxidative Dehydrogenation of N-Heterocycles under Mild Conditions
Adarsha Mandal,
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Manoj Pradhan,
No information about this author
Ankur Maji
No information about this author
et al.
ACS Applied Nano Materials,
Journal Year:
2024,
Volume and Issue:
7(9), P. 10182 - 10193
Published: April 29, 2024
Employing
a
same
catalyst,
the
reversible
acceptorless
dehydrogenation–hydrogenation
and
oxidative
dehydrogenation
of
N-heterocycles
have
rarely
been
explored
in
literature.
Herein,
we
synthesized
an
earth-abundant,
cheap,
robust
cobalt
heterogeneous
nanoparticles
for
hydrogenation
as
well
under
mild
reaction
conditions,
which
makes
it
attractive
hydrogen
storage
purposes.
easy-to-synthesize
reusable
library
molecules
was
reversibly
hydrogenated
dehydrogenated
presence
several
other
reducible
functional
groups
good
to
excellent
yields.
Notably,
practical
applicability
protocol
demonstrated
by
gram-scale
synthesis
few
biologically
important
such
angustureine,
galipinine,
aspernigerin.
This
inexpensive
catalyst
can
be
recycled
up
five
times
without
considerable
loss
catalytic
activity,
inductively
coupled
plasma
mass
spectrometry
(ICP-MS)
analysis
filtrate
showed
only
trace
amount
leaching.
Several
control
experiments
kinetic
studies
were
carried
out
understand
mechanism.
Language: Английский
Harnessing Photocatalytic Activity of Mesoporous Graphitic Carbon Nitride Decorated by Copper Single-Atom Catalysts for Oxidative Dehydrogenation of N-Heterocycles
Published: Jan. 1, 2024
This
work
describes
the
application
of
Cu
single-atom
catalysts
(SACs)
in
photocatalytic
oxidative
dehydrogenation
N-heterocyclic
amines
to
respective
N-heteroaromatics
through
environmentally
benign
and
sustainable
pathways.
The
catalyst
support,
a
mesoporous
graphitic
carbon
nitride
(mpg-C3N4)
is
synthesized
one-step
pyrolysis
method,
decoration
over
mpg-C3N4
support
was
achieved
by
simple
microwave-assisted
preparation
method.
decorated
on
(Cu@mpg-C3N4)
characterized
various
characterization
techniques,
including
XRD,
UV-visible
spectrometry,
HRTEM,
HAADF-STEM
with
EDS
mapping,
AC-STEM,
elemental
ICP-OES,
XANES,
EXAFS,
BET
surface
area.
These
studies
confirmed
that
Cu@mpg-C3N4
exhibited
high
area,
nature,
medium
band
gap,
low
metal
loading.
as-synthesized
well-characterized
photocatalyst
then
evaluated
for
its
efficacy
converting
N-heterocycles
into
corresponding
N-heteroaromatic
compounds
excellent
selectivity
(>99%).
transformation
using
water
as
green
solvent
30
W
white
light
visible
source,
demonstrating
catalyst's
potential
reactions.
Language: Английский
Identification of Ni3Fe Alloy as a Candidate Catalyst for Quinoline Selective Hydrogenation with Computations
Catalysis Science & Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
We
computationally
identified
Ni
3
Fe
as
a
promising
catalyst
for
the
quinoline
(QL)
selective
hydrogenation
to
1,2,3,4-tetrahydroquinoline
(py-THQL)
using
density
functional
theory
calculations
and
microkinetic
modeling.
Language: Английский