Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(7), P. 4199 - 4208
Published: Jan. 1, 2024
A
new
photoelectrocatalytic
mode
permits
the
synthesis
of
polycyclic
pyrimidin-4-ones
through
dehydrogenative
cyclization
malonates
with
unactivated
alkenes.
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(14), P. 4024 - 4040
Published: Jan. 1, 2024
This
review
provides
a
comprehensive
overview
of
metal
catalysis
in
photo-electrochemical
systems,
discussing
reaction
mechanisms
and
offering
prospects
for
this
triadic
catalytic
mode.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(21), P. 12264 - 12304
Published: Oct. 23, 2024
Electrocatalysis
and
photocatalysis
have
been
the
focus
of
extensive
research
efforts
in
organic
synthesis
recent
decades,
these
powerful
strategies
provided
a
wealth
new
methods
to
construct
complex
molecules.
Despite
intense
efforts,
only
recently
has
there
significant
on
combined
use
two
modalities.
Nevertheless,
past
five
years
witnessed
rapidly
growing
interest
area
electrophotocatalysis.
This
hybrid
strategy
capitalizes
enormous
benefits
using
photons
as
reagents
while
also
employing
an
electric
potential
convenient
tunable
source
or
sink
electrons.
Research
this
topic
led
number
for
C-H
functionalization,
reductive
cross-coupling,
olefin
addition
among
others.
field
seen
broad
range
catalyst
types,
including
both
metal
organocatalysts.
Of
particular
note
work
with
open-shell
photocatalysts,
which
tend
comparatively
large
redox
potentials.
Electrochemistry
provides
means
generate
such
species,
making
electrophotocatalysis
particularly
amenable
intriguing
class
catalyst.
review
surveys
applied
synthesis,
organized
broadly
into
oxidative,
reductive,
neutral
transformations.
European Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
27(11)
Published: Jan. 20, 2024
Abstract
A
practical
and
mild
electrochemical
dehydrogenative
regioselective
cyclization
method
has
been
established
for
the
synthesis
of
4‐pyrrolin‐2‐ones
using
3‐aza‐1,5‐dienes
1,3‐dicarbonyl
compounds
as
substrates.
This
protocol
is
catalyst‐free,
metal‐free,
does
not
require
oxidizing
agents.
It
exhibits
wide
substrate
compatibility
can
be
easily
scaled
up
to
gram
scale.
Advanced Synthesis & Catalysis,
Journal Year:
2024,
Volume and Issue:
366(10), P. 2352 - 2362
Published: April 5, 2024
Abstract
While
the
emergence
of
electrophotochemistry
provides
opportunities,
such
a
chemistry
at
this
stage
suffers
from
limited
reaction
types
and
high
photocatalyst
loadings.
A
self‐catalyzed
electrophotosynthesis
as
well
one
with
low
loading
is
presented.
These
external‐oxidant‐free
cyclizations
are
enabling
applicable
to
range
activated
alkenes,
affording
diverse
array
thiocyanato
heterocycles
including
4‐pyrrolin‐2‐ones,
isoquinoline‐1,3‐diones,
indolo[2,1‐
]isoquinolin‐6(5
H
)‐ones,
benzoimidazo[2,1‐
)‐ones
indolin‐2‐ones,
protocols
amenable
late‐stage
diversification
complex
molecular
architectures
gram‐scale
syntheses.
Sunlight
could
serve
light
source,
be
conducted
in
an
all‐solar‐driven
mode
using
commercially
available
photovoltaic
panel
produce
electricity.
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
30(36)
Published: April 23, 2024
Three
hybrid
electrochemical
protocols,
which
involve
the
energy
transfer,
direct
photolysis
and
N-hydroxyphthalimide
catalyst,
respectively,
are
presented
for
selenylation/cyclization
of
fragile
substrates
3-aza-1,5-dienes
with
diorganyl
diselenides
to
afford
3-selenomethyl-4-pyrrolin-2-ones.
The
two
electrophotocatalytic
reactions
indirect
electrolysis
one
both
regioselective
external-oxidant-
transition-metal-free,
associated
a
broad
substrate
scope
high
Se-economy,
all
three
methods
amenable
gram-scale
syntheses,
late-stage
functionalizations,
sunlight-induced
experiments
all-solar-driven
syntheses.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(26), P. 28129 - 28143
Published: June 19, 2024
An
efficient
and
mild
protocol
for
the
visible
light-induced
radical
cascade
difluoromethylation/cyclization
of
imidazoles
with
unactivated
alkenes
using
easily
accessible
bench-stable
difluoromethyltriphenylphosphonium
bromide
as
precursor
-CF
