Chinese Journal of Organic Chemistry,
Год журнала:
2023,
Номер
43(12), С. 4213 - 4213
Опубликована: Янв. 1, 2023
Benzoxazines
are
important
motif
in
pharmaceuticals
and
functional
molecules.A
visible-light
induced
photocatalytic
strategy
for
the
synthesis
of
difluoroethyl
benzoxazines
with
organo-photocatalyst
was
developed.In
present
protocol,
a
series
olefinic
amides
can
be
transferred
to
difluoroethylated
via
oxydifluoromethylation
CF2HSO2Na
as
difluoromethylating
reagent,
which
is
easily
operated
good
group
tolerant.
ACS Catalysis,
Год журнала:
2023,
Номер
13(19), С. 13071 - 13076
Опубликована: Сен. 22, 2023
A
merger
of
heterogeneous
polycrystalline
WSe2
semiconductor
photocatalysis
and
homogeneous
ferrocene
redox
catalysis
for
the
cascade
radical
coupling-annulation
reactions
was
established.
In
redox-mediated
photocatalysis,
can
improve
separation
photogenerated
hole–electron
pairs
on
by
consuming
hole
via
formation
a
cation,
which
triggered
molecular
transformations.
Various
benzo[e]imidazo[1,5-c][1,2,3]oxathiazine
5,5-dioxides
were
formed
through
semiheterogeneous
three-component
reaction
N-sulfonyl
ketimines,
N-arylglycines,
formaldehyde.
ACS Catalysis,
Год журнала:
2024,
Номер
14(2), С. 691 - 702
Опубликована: Янв. 2, 2024
The
successive
ionic
layer
adsorption
and
reaction
(SILAR)
method
was
used
to
deposit
several
CdSe
quantum
dots
(QDs)
on
the
surface
of
g-C3N4
nanosheets.
In
comparison
single
moiety
g-C3N4,
as-prepared
heterostructures
displayed
an
improved
bifunctional
photo-
electrocatalytic
activity
for
oxygen
(OER)
hydrogen
evolution
reactions
(HER).
Significantly,
30
SILAR
cycles
optimized
QDs/g-C3N4
heterostructure
exhibited
high
performances
stabilities
OER
HER
in
alkaline
conditions.
catalyst
also
efficient
photocatalytic
toward
H2
produced
4306
μmol
gas
with
23.8%
apparent
yield
presence
triethanolamine
as
a
sacrificial
agent.
Photoluminescence
spectroscopy,
electron
paramagnetic
resonance,
impedance
spectroscopy
suggest
that
synergy
between
nanosheets
QDs
leads
higher
catalytic
activities,
indicated
by
low
overpotentials
147
218
mV
obtain
10
mA
cm–2
current
density
reactions,
respectively.
Furthermore,
situ
Fourier
transform
infrared
liquid
chromatography–mass
high-performance
chromatography
were
conducted
determine
photochemical
intermediate
products
confirm
successful
oxidation
TEOA
capturing
holes.
outcome
is
accordance
fact
photogenerated
electrons
are
transferred
from
conduction
band
(CB)
valence
(VB)
Z-scheme
manner.
Green Chemistry,
Год журнала:
2023,
Номер
25(20), С. 7983 - 7987
Опубликована: Янв. 1, 2023
An
atom-
and
step-economical,
efficient
eco-friendly
method
for
constructing
naphthoselenazol-2-amines
through
a
visible-light
photocatalytic
multi-component
reaction
under
aqueous
phase
conditions
is
reported.
Chemical Communications,
Год журнала:
2023,
Номер
59(94), С. 14029 - 14032
Опубликована: Янв. 1, 2023
With
both
ferrocene
and
air
as
the
redox
catalysts,
for
first
time,
low-cost
natural
ilmenite
(FeTiO3)
was
successfully
used
photocatalytic
bond
formations.
Under
assistance
of
a
traceless
H-bond,
HCHO
methylene
reagent,
variety
imidazo[1,5-a]quinoxalinones
were
semi-heterogeneously
photosynthesized
in
high
yields
with
good
functional
group
compatibility.
Green Chemistry,
Год журнала:
2023,
Номер
25(14), С. 5539 - 5542
Опубликована: Янв. 1, 2023
With
formaldehyde
as
an
atom-economical
carbonyl
synthon,
the
EtOH-catalyzed
electrochemical
multicomponent
synthesis
of
various
imidazolidine-fused
sulfamidates
under
organic
oxidant-free,
energy-saving
and
mild
conditions
was
developed.
Green Chemistry,
Год журнала:
2023,
Номер
25(20), С. 7971 - 7977
Опубликована: Янв. 1, 2023
Alkyl
diacyl
peroxides
were
demonstrated
to
be
efficient
alkylating
reagents
for
the
visible-light-induced
4CzIPN-catalyzed
direct
C–H
alkylation
of
N
-heteroaromatics.
ACS Catalysis,
Год журнала:
2024,
Номер
14(8), С. 6247 - 6258
Опубликована: Апрель 10, 2024
Aryl-substituted
bicyclo[1.1.1]pentane
(BCP-aryl)
derivatives
represent
the
most
important
bioisosteres
of
biaryl
scaffolds
and
widely
exist
in
numerous
complex
pharmaceutical
molecules.
The
current
synthetic
method
limitations
using
only
tertiary
radical
precursors,
prefunctionalized
heteroarenes,
toxic
transition
metals,
expensive
photocatalysts
make
it
urgent
to
develop
a
more
simple
practical
protocol.
To
confront
enrich
Minisci-type
chemistry,
herein,
we
disclose
photocatalytic
multicomponent
reaction
for
synthesis
various
(halo)alkyl
BCP-aryls
[1.1.1]propellane,
alkyl
halides,
unfunctionalized
heteroarenes
as
starting
materials.
Diverse
kinds
radicals
(primary,
secondary,
carbons)
derived
from
chlorides,
bromides,
fluoroalkyl
iodides
are
very
compatible
this
transformation.
practicability
is
additionally
boosted
by
product
derivatizations
late-stage
functionalization
pharmaceutically
relevant
mechanistic
studies
demonstrate
that
relay
mechanism
initiated
consecutive
photoinduced
electron
transfer
(ConPET)
process
operation.
We
anticipate
methodology
would
act
useful
tool
biaryl-type
drug
derivatives,
ultimately
resulting
great
utility
discovery
program.
