Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(45)
Опубликована: Июнь 16, 2023
Abstract
Electrochemistry
utilizes
electrons
as
a
potent,
controllable,
and
traceless
alternative
to
chemical
oxidants
or
reductants,
typically
offers
more
sustainable
option
for
achieving
selective
organic
synthesis.
Recently,
the
merger
of
electrochemistry
with
readily
available
electrophiles
has
been
recognized
viable
increasingly
popular
methodology
efficiently
constructing
challenging
C−C
C‐heteroatom
bonds
in
manner
complex
molecules.
In
this
mini‐review,
we
have
systematically
summarized
most
recent
advances
electroreductive
cross‐electrophile
coupling
(eXEC)
reactions
during
last
decade.
Our
focus
on
electrophiles,
including
aryl
alkyl
(pseudo)halides,
well
small
molecules
such
CO
2
,
SO
D
O.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Фев. 9, 2022
Solar-heating
catalysis
has
the
potential
to
realize
zero
artificial
energy
consumption,
which
is
restricted
by
low
ambient
solar
heating
temperatures
of
photothermal
materials.
Here,
we
propose
concept
using
heterostructures
black
materials
(such
as
Bi2Te3)
and
infrared
insulating
(Cu)
elevate
temperatures.
Consequently,
heterostructure
Bi2Te3
Cu
(Bi2Te3/Cu)
increases
1
sun-heating
temperature
from
93
°C
317
achieving
synergy
89%
absorption
5%
radiation.
This
strategy
applicable
for
various
raise
Ti2O3,
Cu2Se,
Cu2S
295
°C,
271
248
respectively.
The
Bi2Te3/Cu-based
device
able
heat
CuOx/ZnO/Al2O3
nanosheets
305
under
sun
irradiation,
this
system
shows
a
sun-driven
hydrogen
production
rate
310
mmol
g-1
h-1
methanol
water,
at
least
6
times
greater
than
that
all
solar-driven
systems
date,
with
30.1%
solar-to-hydrogen
efficiency
20-day
operating
stability.
Furthermore,
enlarged
m2
generate
23.27
m3/day
outdoor
sunlight
irradiation
in
spring,
revealing
its
industrial
manufacture.
Chemical Communications,
Год журнала:
2022,
Номер
58(15), С. 2430 - 2442
Опубликована: Янв. 1, 2022
The
electrocatalytic
urea
oxidation
reaction
(UOR)
has
attracted
substantial
research
interests
over
the
past
few
years
owing
to
its
critical
role
in
coupled
electrochemical
systems
for
energy
conversion,
example,
coupling
with
hydrogen
evolution
(HER)
realize
urea-assisted
production
and
assembling
direct
fuel
cells
(DUFC)
by
oxygen
reduction
(ORR).
UOR
process
been
proved
be
a
two-step
which
involves
an
pre-oxidation
of
metal
sites
subsequent
chemical
molecules
on
as-formed
high-valence
sites.
Hence,
designing
advanced
(pre-)catalysts
boosted
is
great
importance
improving
performance
thus
accelerating
reactions.
In
this
feature
article,
we
discuss
significant
during
electro-oxidation
reaction,
summarize
detailed
strategies
recent
advances
promoting
including
modulation
crystallinity,
active
phase
engineering,
defect
elemental
incorporation
constructing
hierarchical
nanostructures.
We
anticipate
that
article
will
offer
helpful
guidance
design
optimization
related
conversion
applications.
Journal of the American Chemical Society,
Год журнала:
2022,
Номер
144(47), С. 21674 - 21682
Опубликована: Ноя. 17, 2022
Asymmetric
sp3
C–H
functionalization
has
been
demonstrated
to
substantially
expedite
target
molecule
synthesis,
spanning
from
feedstocks
upgradation
late-stage
modification
of
complex
molecules.
Herein,
we
report
a
highly
efficient
and
sustainable
method
for
enantioselective
benzylic
cyanation
by
merging
electrophoto-
copper
catalysis.
A
novel
catalytic
system
allows
one
independently
regulate
the
hydrogen
atom
transfer
step
radical
formation
speciation
Cu(II)/Cu(I)
effectively
capture
transient
intermediate,
through
tuning
electronic
property
anthraquinone-type
photocatalyst
simply
modulating
applied
current,
respectively.
Such
decoupled
relay
catalysis
enables
unified
approach
diverse
alkylarenes,
many
which
are
much
less
reactive
or
even
unreactive
using
existing
relying
on
coupled
relay.
Moreover,
current
protocol
is
also
amenable
bioactive
molecules,
including
natural
products
drugs.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(41)
Опубликована: Авг. 26, 2022
Herein,
an
electroreductive
carboxylation
of
organic
carbon-halogen
bonds
(X=Br
and
Cl)
promoted
by
catalytic
amounts
naphthalene
as
mediator
is
reported.
This
transformation
proceeds
smoothly
under
mild
conditions
with
a
broad
substrate
scope
59
examples,
affording
the
valuable
versatile
carboxylic
acids
in
moderate
to
excellent
yields
without
need
costly
transition
metal,
wasted
stoichiometric
metal
reductants,
or
sacrificial
anodes.
Further
late-stage
carboxylations
natural
product
drug
derivatives
demonstrate
its
synthetic
utility.
Mechanistic
studies
confirmed
activation
via
single-electron
transfer
key
role
this
reaction.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(45)
Опубликована: Июнь 16, 2023
Abstract
Electrochemistry
utilizes
electrons
as
a
potent,
controllable,
and
traceless
alternative
to
chemical
oxidants
or
reductants,
typically
offers
more
sustainable
option
for
achieving
selective
organic
synthesis.
Recently,
the
merger
of
electrochemistry
with
readily
available
electrophiles
has
been
recognized
viable
increasingly
popular
methodology
efficiently
constructing
challenging
C−C
C‐heteroatom
bonds
in
manner
complex
molecules.
In
this
mini‐review,
we
have
systematically
summarized
most
recent
advances
electroreductive
cross‐electrophile
coupling
(eXEC)
reactions
during
last
decade.
Our
focus
on
electrophiles,
including
aryl
alkyl
(pseudo)halides,
well
small
molecules
such
CO
2
,
SO
D
O.
