Ligand-Enabled “Two-in-One” Metallaphotocatalytic Cross Couplings
ACS Catalysis,
Год журнала:
2025,
Номер
15(3), С. 1635 - 1654
Опубликована: Янв. 15, 2025
Metallaphotoredox
cross
coupling
(MCC)
is
ranking
among
the
most
advanced
synthetic
methodology
as
it
can
access
chemical
space
that
difficult
to
attain
under
conventional
conditions.
Earlier
developed
MCC
mandates
an
independent
transition
metal
catalyst
and
respective
photocatalyst,
thus
constituting
a
dual
catalytic
manifold.
Complementarily,
paradigm-shifting
metallaphotoredox
strategy
capitalizes
on
single
photoreactive
complex
emerging,
which
brings
not
only
operational
simplification
but
also
unexpected
mechanistic
insights.
This
perspective
compiled
recent
advances
in
monocatalytic
couplings
categorized
them
based
ligands
confer
distinct
photoreactivities
various
mechanisms.
To
this
end,
ligand-enabled
oxidative
addition,
transmetalation,
reductive
elimination
other
radical-involving
pathways
were
summarized
with
notable
examples.
In
way,
we
wish
provide
handy
guideline
for
readers
who
are
interested
emerging
field
inspire
more
future
endeavors
MCCs
beyond.
Язык: Английский
Palladium-Embedded Triptycene-Based Porous Organic Polymer: A Sustainable Catalyst for Suzuki–Miyaura Cross-Coupling Reactions
ACS Applied Polymer Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 16, 2025
A
knitted
aryl
network
polymer
(KAP)
containing
triptycene
and
triphenylphosphine
was
synthesized
by
a
simple
Friedel–Crafts
reaction.
The
(Tp_PPh3)
exhibits
good
physicochemical
stability
with
high
BET
surface
area
(>960
m2/g).
groups
were
incorporated
in
order
to
anchor
palladium
species
on
the
pristine
KAP
backbone
(Tp_PPh3).
Consequently,
metalation
of
Tp_PPh3
yielded
Pd@Tp_PPh3,
which
showed
catalytic
behavior
Suzuki–Miyaura
cross-coupling
reactions
yield
targeted
products
an
aerobic
environment,
using
water
ethanol
as
green
solvents.
This
polymer-based
heterogeneous
catalyst
is
air/moisture
stable
can
be
easily
dispersed
reused
for
several
cycles
without
any
significant
loss
activity.
Even
at
low
loadings
(13.8
wt
%),
Pd@Tp_PPh3
catalyzed
rapid
conversions.
equally
useful
gram-scale
reactions.
strategy
avoids
aggregation
precipitation
Pd
simultaneously
ensures
more
sustainable
use
Suzuki
application
may
extended
other
Pd-catalyzed
Язык: Английский
Efficient conversion of pomelo peel into upgraded bio-crude oil and solid fuel through metal–organic framework catalyzed hydrothermal liquefaction
Energy,
Год журнала:
2025,
Номер
unknown, С. 135087 - 135087
Опубликована: Фев. 1, 2025
Язык: Английский
Effect of π-Linkages in Covalent Organic Framework-Catalyzed Light-Harvesting Thioesterification Reaction
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 24, 2025
Covalent
organic
frameworks
(COFs)
serve
as
an
outstanding
platform
for
heterogeneous
photocatalysis.
We
synthesized
two
analogous
pyrene-based
two-dimensional
COFs
with
π-conjugated
networks,
one
linked
by
C═N
bonds
and
the
other
C═C
bonds,
through
Schiff
base
Knoevenagel
condensation
reactions,
respectively.
investigated
impact
of
these
linkages
on
photocatalytic
activity
COFs,
using
visible-light-mediated
thioesterification
a
model
reaction.
It
was
found
that
olefin-linkage
COF
outperformed
imine-linkage
photocatalyst.
The
developed
protocol
demonstrated
broad
substrate
scope,
including
35
diverse
carboxylic
acids,
14
drug
molecules,
several
disulfide
coupling
partners,
achieving
up
to
95%
yield
thioesters.
practical
utility
this
strategy
is
further
its
successful
application
in
gram-scale
reactions.
photocatalyst
robust
successfully
reused
multiple
cycles
without
any
loss
catalytic
activity.
backbone
facilitated
enhanced
electron
transfer
upon
light
irradiation,
enabling
cross-coupling
acid
reductive
cycle.
Язык: Английский
Highly crystalline multi-component covalent organic frameworks for photocatalytic organic conversion
Molecular Catalysis,
Год журнала:
2025,
Номер
577, С. 114976 - 114976
Опубликована: Март 5, 2025
Язык: Английский
Immobilization of CuO NPs on a highly nitrogen‐rich-modified metal–organic framework, UiO-66-NH2: As an efficient heterogeneous nanocatalyst for the synthesis of Suzuki–Miyaura coupling reaction
Inorganic Chemistry Communications,
Год журнала:
2025,
Номер
unknown, С. 114247 - 114247
Опубликована: Март 1, 2025
Язык: Английский
Xantphos–Cu‐Decorated Covalent Organic Frameworks for C─H Arylation through Sensitized Electron Transfer
Akhtar Alam,
Monojit Roy,
Shyamali Maji
и другие.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
The
isoindolinone
scaffold
is
an
important
structural
motif
found
in
a
wide
range
of
naturally
occurring
and
synthetic
biologically
active
compounds.
However,
the
synthesis
derivatives
typically
requires
multi-step
procedures
or
use
palladium-based
catalysts,
which
are
often
hampered
by
low
reaction
yields
high
costs.
Recently,
covalent
organic
frameworks
(COFs)-emerging
crystalline
porous
materials-have
gained
considerable
attention
for
their
applications
various
transformations,
particularly
C─H
functionalization,
cross-coupling
redox
reactions.
Although
COFs
have
been
extensively
studied
photocatalysis,
development
sustainable
heterogeneous
catalysts
using
low-cost
transition
metal-based
photosensitizers
still
its
early
stages.
Herein,
strategy
presented
to
incorporate
copper-Xantphos
complex
with
tetrahedral
Cu(I)
geometry
into
COF
matrix.
This
modification
enables
unprecedented
simultaneous
electron
energy
transfer
efficiency
during
photocatalysis.
Cu-Xantphos
coordinated
exhibits
potent
photocatalytic
activity
via
C─Br
bond
cleavage
followed
C─C
formation.
In
addition,
catalyst
shows
excellent
recyclability
as
it
can
be
rejuvenated
reintroducing
after
multiple
cycles-highlighting
potential
cost-effective
solution
valuable
transformations.
Язык: Английский
Recent Advances in Covalent Organic Frameworks as Photocatalysts for Organic Transformations
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116253 - 116253
Опубликована: Март 1, 2025
Язык: Английский
Covalent Organic Frameworks and Their Derivatives for Applications in High‐Performance Lithium–Sulfur Batteries
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 30, 2024
Abstract
Lithium–Sulfur
batteries
(LSBs)
are
widely
regarded
as
one
of
the
most
promising
energy
storage
systems
due
to
their
ultra‐high
theoretical
density
and
environmental
friendliness.
However,
practical
applications
LSBs
face
significant
challenges,
including
shuttle
effect
soluble
polysulfides
formation
lithium
dendrites.
Covalent
organic
frameworks
(COFs)
have
emerged
potential
materials
for
inhibiting
polysulfide
buffering
This
review
provides
an
overview
latest
advancements
in
use
COF
its
derivative
sulfur
host
materials,
modified
commercial
separators,
electrolytes
LBSs,
makes
some
brief
conclusions
predictions.
Pure
COFs,
derivatives,
composites
discussed
hosts,
along
with
novel
strategies
intended
enhance
LSB
cycling
stability
reversibility.
Strategies
enhancing
performance
summarized
through
modification
separators
using
ultimate
goal
achieving
high
density.
It
also
discusses
designing
COF‐based
electrolytes,
which
include
structural
design,
ionic
introduction
salt
molecules
or
flexible
oligo(ethylene
oxide)
chains
into
skeletons.
Additionally,
future
prospects
COFs
derivatives
LSBs.
Язык: Английский