Copper‐Functionalized MIL‐101(Cr): An Efficient, Reusable, and Heterogeneous Catalyst for Chan–Lam Coupling and Amide Bond Formation
Rona Moni Bora,
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Lenida Kyndiah,
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Priyanka Borah
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et al.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(11)
Published: March 1, 2025
Abstract
Efficient
protocols
for
the
synthesis
of
secondary
amines
using
phenylboronic
acid
and
aniline
via
Chan–Evan–Lam
coupling
reaction
amides
by
oxidative
amidation
aldehydes
with
utilizing
heterogeneous,
recyclable
MIL‐101(Cr)‐SB‐Cu
catalyst
have
been
developed.
has
synthesized
post‐synthetic
modification
amino‐functionalized
MIL‐101(Cr).
Various
spectroscopic
analytical
methods,
such
as
FT‐IR,
PXRD,
SEM,
TEM,
EDX,
XPS,
ICP‐OES,
TG
were
used
to
characterize
catalyst.
The
showed
excellent
catalytic
activity
provided
good
yields
desired
products
under
mild
conditions.
can
be
reused
up
five
consecutive
runs
without
significant
loss
in
its
activity.
Low
loading,
easy
work‐up,
gram‐scale
synthesis,
a
simple
preparation
are
some
other
advantages
this
approach.
Language: Английский
Facet-Engineered Copper Electrocatalysts Enable Sustainable NADH Regeneration with High Efficiency
Shuo Sun,
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Yizhou Wu,
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Yunxuan Ding
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et al.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
147(19), P. 16630 - 16641
Published: April 30, 2025
Electrochemical
regeneration
of
the
nicotinamide
cofactor
(NADH)
provides
a
sustainable
approach
to
enzymatic
reactions.
However,
low
productivity
and
selectivity
bioactive
1,4-NADH
limit
its
broad
applications.
The
hydrogenation
NAD+
at
electrode
surface
is
strongly
coupled
conformation
adsorbed
NAD*,
formation
hydrogen
(Had),
Had
transfer
NAD*.
Therefore,
searching
for
materials
with
suitable
NAD*
conformation,
energy,
rapid
becomes
key
task
research.
In
this
study,
(111)
facet
Cu
was
found
exhibit
higher
86.4%,
compared
50.4%
57.4%
(100)
(110)
facets,
respectively.
Density
functional
theory
(DFT)
calculations
revealed
that
high
Cu(111)
stemmed
from
favorable
reduced
barrier.
Subsequently,
nanowire
(111)-dominant
abundant
grain
boundaries,
Cugb(111),
constructed.
kinetic
analysis
DFT
demonstrated
boundaries
reduce
reaction
barrier
formation.
A
record-high
73.5
μmol
h-1
cm-2
achieved
by
while
well-maintained
84.7%.
This
study
elucidates
effects
crystal
facets
on
regulating
1,4-NADH,
providing
pathway
renewable
energy-powered,
high-efficiency
green
biomanufacturing.
Language: Английский