Metal‐Free Electrochemical Trifluoromethylation of Imidazole‐Fused Heterocycles with Trifluoromethyl Thianthrenium Triflate
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
42(15), С. 1679 - 1685
Опубликована: Март 15, 2024
Comprehensive
Summary
A
novel
and
eco‐friendly
electrochemical
activation
of
trifluoromethyl
thianthrenium
triflate
(TT–CF
3
+
OTf
−
)
for
trifluoromethylation
imidazole‐fused
heteroaromatic
compounds
was
established.
This
method
involves
the
direct
electrolysis
TT–CF
without
requirement
external
oxidants
or
catalysts,
aligning
with
principles
green
chemistry.
wide
range
including
imidazo[1,2‐
a
]pyridines
benzo[
d
]imidazo[2,1‐
b
]thiazoles
have
been
successfully
trifluoromethylated
using
this
technique,
exhibiting
excellent
compatibility
various
functional
groups
broad
substrate
scope.
Moreover,
method's
applicability
one‐pot
sequential
reactions
enables
reduction
waste
resource
consumption
by
eliminating
need
intermediate
purification
steps.
Язык: Английский
Unraveling the potential-dependent structure evolution in CuO for electrocatalytic biomass valorization
Science Bulletin,
Год журнала:
2023,
Номер
68(23), С. 2982 - 2992
Опубликована: Сен. 26, 2023
Язык: Английский
Rechargeable Biomass Battery for Electricity Storage/generation and Concurrent Valuable Chemicals Production
Jing Li,
Kaiyue Ji,
B. Li
и другие.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(31)
Опубликована: Июнь 7, 2023
Abstract
The
development
of
a
rechargeable
battery
that
can
produce
valuable
chemicals
in
both
electricity
storage
and
generation
processes
holds
great
promise
for
increasing
the
electron
economy
economic
value.
However,
this
has
yet
to
be
explored.
Herein,
we
report
biomass
flow
generates
while
producing
furoic
acid,
store
yielding
furfuryl
alcohol.
is
composed
rhodium‐copper
(Rh
1
Cu)
single‐atom
alloy
as
anode,
cobalt‐doped
nickel
hydroxide
(Co
0.2
Ni
0.8
(OH)
2
)
cathode,
furfural‐containing
anolyte.
In
full
evaluation,
displays
an
open
circuit
voltage
(OCV)
1.29
V
peak
power
density
up
107
mW
cm
−2
,
surpassing
most
catalysis‐battery
hybrid
systems.
As
proof‐of‐concept,
demonstrate
produces
kg
acid
with
0.78
kWh
output,
yields
0.62
alcohol
when
stored.
This
work
may
shed
light
on
design
batteries
value‐added
functionality
such
production.
Язык: Английский
Rechargeable Biomass Battery for Electricity Storage/generation and Concurrent Valuable Chemicals Production
Angewandte Chemie,
Год журнала:
2023,
Номер
135(31)
Опубликована: Июнь 7, 2023
Abstract
The
development
of
a
rechargeable
battery
that
can
produce
valuable
chemicals
in
both
electricity
storage
and
generation
processes
holds
great
promise
for
increasing
the
electron
economy
economic
value.
However,
this
has
yet
to
be
explored.
Herein,
we
report
biomass
flow
generates
while
producing
furoic
acid,
store
yielding
furfuryl
alcohol.
is
composed
rhodium‐copper
(Rh
1
Cu)
single‐atom
alloy
as
anode,
cobalt‐doped
nickel
hydroxide
(Co
0.2
Ni
0.8
(OH)
2
)
cathode,
furfural‐containing
anolyte.
In
full
evaluation,
displays
an
open
circuit
voltage
(OCV)
1.29
V
peak
power
density
up
107
mW
cm
−2
,
surpassing
most
catalysis‐battery
hybrid
systems.
As
proof‐of‐concept,
demonstrate
produces
kg
acid
with
0.78
kWh
output,
yields
0.62
alcohol
when
stored.
This
work
may
shed
light
on
design
batteries
value‐added
functionality
such
production.
Язык: Английский
Recent advances in radical-mediated intermolecular (4 + 2) cycloaddition
Organic & Biomolecular Chemistry,
Год журнала:
2023,
Номер
21(30), С. 6068 - 6082
Опубликована: Янв. 1, 2023
On
the
basis
of
types
radicals
that
initiate
different
intermolecular
(4
+
2)
cycloaddition
processes,
we
classify
them
into
five
types,
and
this
review
places
special
emphasis
on
reaction
design
mechanisms.
Язык: Английский
High Spin‐State Modulation of Catalytic Centers by Weak Ligand Field for Promoting Sulfur Redox Reaction in Lithium‐Sulfur Batteries
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 8, 2024
The
spin
state
of
transition-metal
compounds
in
lithium-sulfur
batteries
(LSBs)
significantly
impacts
the
electronic
properties
and
kinetics
sulfur
redox
reactions
(SRR).
However,
accurately
designing
remains
challenging,
which
is
crucial
for
understanding
structure-performance
relationship
developing
high-performance
electrocatalysts.
Herein,
CoF
Язык: Английский
Ferrocene as a Redox Catalyst for Organic Electrosynthesis
Israel Journal of Chemistry,
Год журнала:
2023,
Номер
64(1-2)
Опубликована: Авг. 23, 2023
Abstract
Despite
substantial
advancements
in
thermal
and
photochemical
catalysis,
the
evolution
of
similar
processes
within
realm
organic
electrochemistry
has
seen
a
slower
pace.
However,
recent
years
have
heralded
remarkable
surge
molecular
electrocatalysis.
This
innovative
technique
harnesses
power
catalysts
to
expedite
electrochemical
transformations.
article
underscores
application
ferrocene
(Fc)
as
redox
catalyst
electrosynthesis.
It
delves
into
extensive
utilization
Fc
electrosynthesis,
particularly
emphasizing
its
role
electrocatalytic
generation
reactions
heteroatom‐
carbon‐centered
radicals,
among
various
other
reactions.
Язык: Английский
High Spin‐State Modulation of Catalytic Centers by Weak Ligand Field for Promoting Sulfur Redox Reaction in Lithium‐Sulfur Batteries
Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 8, 2024
Abstract
The
spin
state
of
transition‐metal
compounds
in
lithium‐sulfur
batteries
(LSBs)
significantly
impacts
the
electronic
properties
and
kinetics
sulfur
redox
reactions
(SRR).
However,
accurately
designing
remains
challenging,
which
is
crucial
for
understanding
structure‐performance
relationship
developing
high‐performance
electrocatalysts.
Herein,
CoF
2
,
specifically
Co
2+
with
3
d
7
electrons
a
high‐spin
distribution
(t
2g
5
e
g
),
were
tailored
predictably
first
time
through
weak
coordination
field
effect
F
element.
Both
DFT
calculations
experimental
results
confirm
that
transitions
from
low‐
to
configurations
strongly
interacts
species
Co−S
Li−F
bonds
during
SRR
process.
This
interaction
weakens
S−S
bond,
promoting
its
facile
cleavage
both
ends
while
also
facilitating
rapid
uniform
nucleation
Li
S
/Li
S,
thus
resulting
LSBs
capacity
447.7
mAh
−1
at
10
C
rates
stable
cycling
1000
cycles,
an
acceptable
practical
585
high
loading
mass
mg
cm
−2
.
work
achieves
rational
control
active
electron
enriches
application
accelerate
LSBs.
Язык: Английский
Electrochemical Oxidative (4 + 2) Cyclization of Anilines and o-Phenylenediamines for the Synthesis of Phenazines
Organic Letters,
Год журнала:
2024,
Номер
26(18), С. 3756 - 3761
Опубликована: Апрель 28, 2024
Phenazines,
crucial
constituents
of
nitrogen-containing
heterocycles,
widely
exist
in
functional
compounds.
Herein,
we
report
an
anodic
oxidative
(4
+
2)
cyclization
between
anilines
and
Язык: Английский