Organic & Biomolecular Chemistry,
Год журнала:
2023,
Номер
21(19), С. 4109 - 4113
Опубликована: Янв. 1, 2023
A
photocatalytic
three-component
cascade
reaction
of
quinoxalin-2(1H)-ones,
alkenes,
and
sulfinic
acids
under
metal-,
strong
oxidant-,
external
photocatalyst-free
conditions
was
developed.
The
performed
at
room
temperature
using
air
as
a
green
oxidant.
Various
sulfonated
quinoxalin-2(1H)-ones
were
obtained
in
satisfactory
yields
with
good
functional
group
compatibility.
preliminary
study
showed
that
the
current
transformation
enabled
by
formation
an
electron
donor-acceptor
(EDA)
complex
between
acids.
New Journal of Chemistry,
Год журнала:
2022,
Номер
46(42), С. 20412 - 20418
Опубликована: Янв. 1, 2022
A
COF-catalyzed
visible-light-induced
three-component
synthesis
of
trifluoroalkyl
and
trifluoroalkenyl
quinoxalin-2(1
H
)-one
derivatives
features
robust
substrate
adaptability,
good
sustainability,
Z
-selectivity.
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
22(34), С. 7024 - 7034
Опубликована: Янв. 1, 2024
A
visible
light-induced
difluoroalkylation/heteroarylation
of
[1.1.1]propellane
with
nitrogen
containing
heterocycles
and
difluoroiodane(III)
reagents
was
achieved.
Various
heteroarenes
exhibited
good
compatibility,
yielding
the
desired
products
in
moderate
to
yields.
The
accessibility
mild
reaction
conditions
establish
this
method
as
an
alternative
practical
strategy
for
accessing
diverse
1-difluoroalkyl-3-heteroaryl
bicyclo[1.1.1]pentanes
(BCPs).
The Journal of Organic Chemistry,
Год журнала:
2023,
Номер
88(3), С. 1875 - 1883
Опубликована: Янв. 20, 2023
A
new
strategy
of
electrochemical
oxidative
difluoroethylation
to
generate
difluoroethyl
radical
with
sodium
difluoroethylsulfinate
(DFES-Na)
has
been
reported
for
the
first
time.
The
method
allows
quick
access
a
variety
valuable
difluoroethylated
azaheterocycles
including
oxindoles
and
isoquinoline-1,3-diones
via
tandem
difluoroethylation/cyclization
in
moderate
good
yields.
cyclopropyldifluoromethylation
N-arylacrylamides
also
works
well
using
this
strategy.
Moreover,
capture
cyclic
voltammetry
(CV)
experiments
are
carried
out
determine
proposed
mechanism.
Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(6), С. 1577 - 1586
Опубликована: Янв. 1, 2023
Hypervalent
iodine
compounds
became
an
important
class
of
reagents
in
synthesis.
In
this
review,
we
present
reactivity
patterns
five
different
structural
classes
hypervalent
and
their
complexes
under
visible
light
irradiation.
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(15), С. 10974 - 10986
Опубликована: Июль 24, 2024
Visible-light
photoredox-catalyzed
method
has
been
developed
for
the
synthesis
of
quinoxalin-2(1H)-one-containing
vinyl
phosphorodithioates
via
direct
difunctionalization
alkynes
with
quinoxalin-2(1H)-ones,
P4S10
and
alcohols.
This
four-component
reaction
could
be
carried
out
under
metal-free
mild
conditions,
affording
a
number
in
moderate
to
good
yields
Z-isomers
as
major
products.
Photocatalytic
radical
mechanism
is
proposed
based
on
results
trapping
fluorescence
quenching
experiments.
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
27(19)
Опубликована: Март 21, 2024
Abstract
Herein,
visible‐light‐induced
metal‐free
three‐component
amidoheteroarylation
of
alkenes
with
quinoxalin‐2(1
H
)‐ones
and
N‐sulfonylaminopyridinium
salts
is
developed.
This
protocol
involves
a
radical
relay
process
in
which
the
N‐centered
radicals
undergo
chemoselective
addition
to
form
an
alkyl
that
selectively
combines
heteroarenes,
leading
formation
C−C
C−N
bonds
one
step
under
mild
reaction
conditions.
The
involved
high
efficiency
selectivity,
wide
substrate
scope,
excellent
functional‐group
compatibility
demonstrate
practicability
developed
protocol.
