Chinese Journal of Chemistry,
Год журнала:
2021,
Номер
40(1), С. 97 - 103
Опубликована: Окт. 5, 2021
Comprehensive
Summary
An
efficient
and
eco‐friendly
carbon
nitride
nanosheet
(NM‐g‐C
3
N
4
)‐catalyzed
decarboxylative
coupling
reaction
of
imidazo‐fused
heterocycles
(
i.e
.,
imidazo[1,2‐
a
]pyridines,
benzo[
d
]imidazo[2,1‐
b
]thiazole)
with
‐phenylglycines
in
dimethyl
carbonate
(DMC)
has
been
developed.
The
toxic
solvents,
external
oxidants,
restricted
conditions
could
be
effectively
avoided
this
powerful
sustainable
protocol.
Remarkably,
NM‐g‐C
straightforwardly
recovered
by
simple
centrifugation
recycled
reused
at
least
7
times
without
an
obvious
decrease
catalytic
activity.
Chemical Communications,
Год журнала:
2019,
Номер
55(38), С. 5408 - 5419
Опубликована: Янв. 1, 2019
In
this
review,
the
recent
advances
of
application
1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene
(4CzIPN)
as
a
photoredox
catalyst
in
past
three
years
(2016–2018)
for
various
organic
reactions
are
summarized.
Green Chemistry,
Год журнала:
2019,
Номер
21(14), С. 3858 - 3863
Опубликована: Янв. 1, 2019
The
first
example
of
direct
synthesis
2-sulfonylquinolines
through
visible-light-induced
deoxygenative
C2-sulfonylation
quinoline
N-oxides
with
organic
dye
as
the
catalyst
and
ambient
air
sole
oxidant
was
developed.
Advanced Synthesis & Catalysis,
Год журнала:
2020,
Номер
363(1), С. 2 - 39
Опубликована: Окт. 12, 2020
Abstract
While
remarkable
progress
has
recently
been
made
for
the
direct
C−H‐functionalization
of
azines,
its
application
is
still
limited
by
a
lack
accessible
functional
groups
(primarily
carbon‐based)
and
poor
regioselectivity.
In
contrast,
C2‐functionalized
pyridines
quinolines
can
be
easily
synthesized
treating
readily
available
N
‐oxides
with
various
reagents
under
appropriate
activation
conditions.
This
review
seeks
to
comprehensively
document
synthetic
methods
introducing
at
C2
position
quinolines.
this
work,
we
highlight
recent
developments
in
C2‐functionalization
pyridine
quinoline
address
both
mechanisms
regioselectivity
reactions.
We
also
describe
pathways
reactive
species
involved
these
processes
number
medically
relevant
nitrogen
heteroaromatics.
magnified
image
Organic Chemistry Frontiers,
Год журнала:
2019,
Номер
6(13), С. 2183 - 2199
Опубликована: Янв. 1, 2019
Recent
advances
in
the
metal-catalyzed
radical-type
transformation
of
unactivated
alkyl
halides
with
C–C
bond
formation
under
photoinduced
conditions
are
summarized.
Usually,
a
broad
reaction
scope
is
observed
including
tertiary,
secondary,
and
primary
halides,
good
functional
group
compatibility.
Chemical Communications,
Год журнала:
2019,
Номер
55(43), С. 6010 - 6013
Опубликована: Янв. 1, 2019
A
sulfonylation
reaction
of
4-substituted
Hantzsch
esters,
DABCO·(SO2)2,
and
electron-deficient
alkenes
at
room
temperature
in
the
presence
photoredox
catalysis
under
visible
light
irradiation
is
described.
Not
only
(E)-chalcones
but
also
(vinylsulfonyl)benzene
2-vinylpyridine
are
all
suitable
substrates
transformation.
This
mild
conditions
shows
a
broad
substrate
scope
with
good
functional
group
compatibility.
plausible
mechanism
proposed,
which
that
esters
would
be
radical
reservoirs
catalysis.
The
alkyl
generated
situ
from
ester
trapped
by
sulfur
dioxide
to
produce
an
alkylsulfonyl
radical,
then
undergo
further
transformation
leading
final
outcome.
Advanced Synthesis & Catalysis,
Год журнала:
2019,
Номер
361(22), С. 5176 - 5181
Опубликована: Сен. 26, 2019
Abstract
A
metal‐free
visible‐light‐induced
cyclization
procedure
was
developed
for
the
rapid
synthesis
of
perfluoroalkyl‐substituted
benzimidazo[2,1‐
a
]isoquinolin‐6(5
H
)‐ones
and
indolo[2,1‐
under
mild
reaction
conditions.
In
this
procedure,
formation
electron‐donor‐acceptor
(EDA)
complex
is
critical
visible‐light
promoted
process
to
avoid
utilization
external
photocatalysts.
magnified
image
Organic & Biomolecular Chemistry,
Год журнала:
2020,
Номер
19(2), С. 313 - 321
Опубликована: Ноя. 19, 2020
1,3-Dicyano-2,4,5,6-tetrakis(diphenylamino)-benzene
has
emerged
as
a
powerful
and
attractive
metal-free
organophotocatalyst
for
organic
transformation
is
expected
to
contribute
great
extent
toward
the
advancement
development
of
synthetic
methodologies.
European Journal of Organic Chemistry,
Год журнала:
2019,
Номер
2020(10), С. 1274 - 1287
Опубликована: Май 3, 2019
Recent
advances
in
the
photoinduced
sulfonylation
reactions
through
insertion
of
sulfur
dioxide
are
summarized.
Among
approaches
developed
reactions,
via
radical
process
can
be
accomplished
with
assistance
photoredox
catalysis
presence
visible
light
or
under
ultraviolet
irradiation,
depending
substrates
used
reactions.
Under
conversion
completed
metal‐
and
additive‐free
conditions.
It
is
noteworthy
that
alkyl
halides
possessing
eliminable
β‐hydrogen
atom
effective
as
precursors
dioxide.
Two
parts,
according
to
reaction
pathways,
introduced:
(a)
photo‐initiated
formation
subsequent
capture
dioxide;
(b)
photo‐assisted
single
electron
transfer
(SET)
after
During
transformation,
an
oxidative
reductive
would
occur
catalysis.
Advanced Synthesis & Catalysis,
Год журнала:
2020,
Номер
362(11), С. 2178 - 2182
Опубликована: Фев. 22, 2020
Abstract
A
method
for
the
synthesis
of
3‐acyl
quinoxalin‐2(1
H
)‐ones
through
visible‐light
promoted
decarboxylative
acylation
α‐oxo‐carboxylic
acids
with
was
developed.
The
reaction
performed
in
aqueous
phase
and
photoredox
catalyst
not
required
to
run
process.
magnified
image
