Synthesis,
Journal Year:
2023,
Volume and Issue:
55(13), P. 2091 - 2098
Published: Feb. 14, 2023
Abstract
A
novel
and
efficient
visible-light-induced
method
is
developed
for
the
one-pot
synthesis
of
functionalized
2-aminothiazoles
from
easily
accessible
active
methylene
ketone
derivatives
different
thioureas
at
room
temperature.
The
mild
reaction
conditions,
green
chemistry,
straightforward
work-up,
high
yields
products
make
this
procedure
useful
construction
2-aminothiazole
derivatives.
Organic & Biomolecular Chemistry,
Journal Year:
2023,
Volume and Issue:
21(10), P. 2232 - 2235
Published: Jan. 1, 2023
A
direct,
aerobic
and
visible
light
photocatalytic
approach
to
synthesize
4-thiocyanated
5-hydroxy-1H-pyrazoles
via
cross-coupling
of
pyrazolin-5-ones
with
ammonium
thiocyanate
is
described.
Under
redox-neutral
metal-free
conditions,
a
series
could
be
easily
efficiently
obtained
in
good
high
yields
by
using
low-toxicity
inexpensive
as
the
source.
Organic Chemistry Frontiers,
Journal Year:
2023,
Volume and Issue:
10(10), P. 2453 - 2458
Published: Jan. 1, 2023
An
efficient
protocol
to
access
phenanthrene-9,9(10
H
)-dicarbonitrile
derivatives
through
visible-light-induced
cyclization
of
2-malononitrilemethylene-substituted
1,1′-biphenyls
under
metal-free
conditions
was
developed.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(17), P. 12341 - 12356
Published: Aug. 15, 2023
A
simple
and
tuned
synthesis
of
a
2H-indazole
skeleton
under
metal-free
conditions
was
developed.
Under
visible-light
irradiation
at
room
temperature,
2-((aryl/alkyl/H)ethynyl))aryltriazenes
reacted
with
arylsulfinic
acids
to
afford
3-functionalized
2H-indazoles
without
extra
photocatalyst
via
an
electron
donor-acceptor
complex.
In
the
presence
acid,
2-(ethynyl)aryltriazenes
underwent
intramolecular
oxidation/cyclization
provide
2H-indazole-3-carbaldehydes
50
°C
in
air.
Advanced Synthesis & Catalysis,
Journal Year:
2023,
Volume and Issue:
365(24), P. 4533 - 4537
Published: Nov. 14, 2023
Abstract
A
visible‐light
induced
approach
has
enabled
the
synthesis
of
3‐alkyl
indole
from
ynones
via
C
sp
3
−H
bond
functionalization.
This
protocol
proceeded
under
base‐free
conditions
andat
room
temperature,
providing
a
series
motifs
in
39%
to
90%
yields
(44
examples).
Preliminary
mechanistic
studies
suggest
that
radical
process
should
be
involved
this
transformation.
Synthesis,
Journal Year:
2023,
Volume and Issue:
55(13), P. 2091 - 2098
Published: Feb. 14, 2023
Abstract
A
novel
and
efficient
visible-light-induced
method
is
developed
for
the
one-pot
synthesis
of
functionalized
2-aminothiazoles
from
easily
accessible
active
methylene
ketone
derivatives
different
thioureas
at
room
temperature.
The
mild
reaction
conditions,
green
chemistry,
straightforward
work-up,
high
yields
products
make
this
procedure
useful
construction
2-aminothiazole
derivatives.
