Current Organic Synthesis,
Journal Year:
2023,
Volume and Issue:
21(8), P. 965 - 975
Published: Aug. 29, 2023
Abstract:
Visible
light-induced
reactions
are
a
rapidly
developing
and
powerful
technique
to
pro-mote
organic
transformations.
They
provide
green
sustainable
chemistry
have
recently
re-ceived
increasing
attention
from
chemists
due
their
wide
application
in
synthesis.
Light
energy
is
eco-friendly,
cheap,
green,
inexhaustible
with
potential
industrial
pharmaceutical
applications.
In
this
review,
the
most
recent
advances
visible
(2021-till
date)
been
highlighted.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(8), P. 3292 - 3296
Published: Jan. 1, 2023
The
semi-heterogeneous
g-C
3
N
4
/NaI
dual
catalytic
system
driven
C–C
bond
formation
between
quinoxalin-2(1
H
)-ones
and
arylhydrazines
under
blue
light
irradiation
is
reported
for
the
first
time.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(4), P. 2583 - 2592
Published: Jan. 17, 2024
Catalytic
electron
donor–acceptor
(EDA)
complexes
have
recently
emerged
as
a
powerful
and
sustainable
alternative
to
iridium-
ruthenium-based
photoredox
synthetic
methods.
Yet,
these
remain
underexplored
reliant
on
the
use
of
meticulously
designed
acceptors
that
require
previous
installation.
Herein,
we
report
novel
EDA
complex
employing
tris(4-methoxyphenyl)
amine
catalytic
donor
for
sulfonylation
alkenes
using
inexpensive
readily
available
sulfonyl
chlorides.
Applying
this
operationally
simple,
visible-light-mediated
general
platform,
both
redox-neutral
net-reductive
functionalization
more
than
60
substrates,
encompassing
vinylic
or
allylic
sulfonylation,
hydrosulfonylation,
sulfamoylation
activated
unactivated
alkynes.
European Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Sept. 11, 2023
Abstract
The
multicomponent
reactions
of
quinoxalin‐2(1
H
)‐ones
has
attracted
considerable
interest
due
to
their
significant
biological
and
chemical
activities.
very
recent
advances
(from
2021
the
beginning
2023)
on
radical
three‐component
cascade
reaction
)‐one
derivatives
at
C3
position
were
summarized
in
this
mini‐review.
According
kind
types
involved,
some
representative
examples
detailed
mechanism
have
been
categorized
discussed.
red
front
was
covered
by
Figure
1.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(13), P. 8360 - 8368
Published: June 1, 2023
A
1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene
(4-CzIPN)-photocatalyzed
cascade
arylation/cyclization
reaction
of
2-isocyanobiaryls
and
iodonium
ylides
was
established
for
the
synthesis
6-arylated
phenanthridines.
This
is
first
example
employing
as
aryl
radical
sources
in
a
visible-light-induced
cyclization
reaction.
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
89(9), P. 6334 - 6344
Published: April 15, 2024
A
one-pot
strategy
for
deoxygenative
alkylation
of
alcohols
with
quinoxalin-2(1H)-ones
was
developed
by
using
xanthate
salts
as
alcohol-activating
groups
radical
generation
in
the
presence
tricyclohexylphosphine
under
visible-light-promoted
conditions.
The
remarkable
features
this
reaction
include
a
broad
substrate
scope,
excellent
functional
group
tolerance,
mild
conditions,
and
simple
operation.
Moreover,
synthetic
utility
validated
success
two-step
reactions,
scale-up
synthesis,
chemoselective
monodeoxygenation
diols.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(9), P. 6218 - 6226
Published: April 12, 2023
An
efficient
synthesis
of
a
variety
3-alkyl
quinoxalinones
via
C-H
direct
alkylation
by
photoredox
catalysis
between
and
alkylborates
is
reported.
A
range
was
tolerated
well.
This
visible-light
photocatalysis
reaction
allows
access
to
structurally
diverse
in
good
excellent
yields.
The
practicality
this
protocol
demonstrated
the
concise
potential
bioactive
nonpeptide
angiotensin
II
receptor
antagonist.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(18), P. 13339 - 13350
Published: Aug. 31, 2023
We
report
a
metal-
and
photocatalyst-free
C3
α-aminomethylation
of
quinoxalin-2(1H)-ones
with
N-alkyl-N-methylanilines.
The
reaction
proceeds
through
the
formation
photoactivated
electron
donor–acceptor
complex
between
present
method
provides
mild
environmentally
friendly
protocol
that
exhibits
good
atom
economy
excellent
functional
group
tolerance
to
obtain
library
biologically
significant
α-aminomethylated
in
yields.
