Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Май 22, 2023
Abstract
Visible
light
driven
synthesis
of
substituted
benzo[
b
]thiophenes
from
phenylethenethiol
under
an
air
atmosphere
at
room
temperature
is
reported,
using
eosin
Y
as
organophotoredox
catalyst
by
intramolecular
C−S
bond
formation.
This
process
accepts
a
wide
range
functional
groups
tolerance
and
generates
highly
environmentally
benign
conditions
via
transition-metal-free
organic
photoredox
catalysis.
Synthetic Communications,
Год журнала:
2024,
Номер
54(14), С. 1129 - 1146
Опубликована: Май 24, 2024
Recently,
photoredox
catalysis
using
9,10-phenanthrenequinone
(PQ)
has
emerged
as
an
efficient
method
for
the
transformation
of
various
organic
compounds.
Low
cost
and
good
availability
make
it
a
promising
alternate
to
typical
transition
metal
complex-based
photocatalysts.
It
alternative
in
highlighting
recent
advancement
photocatalyst.
Abstract
Owing
to
its
possible
advantages
for
the
environment
and
economy,
photoredox
catalysis
of
organic
processes
fueled
by
iron
has
garnered
a
lot
interest
recently.
The
potential
photo‐induced
single‐electron
transfer
(SET)
events
occurring
outside
sphere
is
now
well
acknowledged.
Currently,
focus
shifted
newly
discovered
photoactivation
method
that
based
on
an
inner‐sphere
mode
reactivity
caused
population
visible‐light‐induced
homolysis
(VLIH)
states.
VLIH
activation,
in
contrast
photoredox,
specific
complexes,
offers
distinct
profiles,
does
not
require
redox
potentials
coincide.
These
attractive
properties
have
prompted
development
strategies
use
this
blueprint
manufacture
highly
reactive
open‐shell
species
mild
environments.
purpose
contribution
promote
novel
synthetic
techniques
sustainable
chemical
transformations
offer
educational
instrument
understanding
evolving
idea.
Abstract
4‐CzIPN
is
a
traditional
electron
donor
and
acceptor
fluorophore
that
uses
carbazolyl
as
an
donating
dicyanobenzene
withdrawing
source.
Its
broad
redox
potential,
high
chemical
resistance
wide
applicability
makes
it
unique
metal‐free
photocatalyst.
This
study
summarizes
the
recent
development
of
photoredox
catalyst
for
variety
heterocyclic
construction
over
last
four
years
(2021‐2024).
The Journal of Organic Chemistry,
Год журнала:
2023,
Номер
88(11), С. 7551 - 7556
Опубликована: Май 15, 2023
Herein,
we
report
facile,
atom-economical
syntheses
of
multisubstituted
2,3-dihydropyrroles
using
flavin–iodine-catalyzed
aerobic
oxidative
multistep
transformations
chalcones
with
β-enamine
ketones
or
1,3-dicarbonyl
compounds
and
amines.
Exploiting
coupled
flavin–iodine
catalysis,
the
reaction,
including
C–C
C–N
bond
formation,
is
promoted
only
by
consumption
O2
(1
atm),
thus
allowing
synthesis
that
generates
green
H2O
as
waste.
Abstract
Visible
light
photocatalysis
has
several
applications
as
a
method
of
chemical
transformation,
with
wide‐ranging
effects
on
the
production
energy,
preservation
environment,
development
new
drugs
and
human
health.
The
light‐induced
sensitization
cofactors
for
photodynamic
therapy
in
treatment
cancer
is
remarkable
application
an
influence
use
this
photosensitization
strategy
medicine
sparked
interest
other
photochemical
techniques,
such
photoredox
catalysis,
that
could
have
impact
biological
research.
discovery
useful
synthetic
transformations
during
past
ten
years
made
light‐mediated
catalysis
highly
used
synthesis.
This
review
will
highlight
recent
advances
visible‐light
through
its
anticancer
activity.
Abstract
Chemistry
professionals
from
all
kinds
of
fields
and
disciplines
in
the
academic
commercial
sectors
have
recently
shown
a
great
deal
interest
continuous‐flow
chemistry.
Flow
methods
are
used
nowadays
for
rapid
optimization
assessment,
as
well
production
scale‐up,
reaction
discovery,
methodology.
Photochemical
processes
currently
receiving
lot
attention
scientific
community,
application
flow
these
approaches
has
advantages
chemistry
its
importance
modern
industry
worldwide.
This
study
illustrates
most
recent
advancements
benefits
continuous
photochemical
reactions
relation
to
synthesis
active
pharmaceutical
compounds
recommended
frameworks.
Chemistry - An Asian Journal,
Год журнала:
2024,
Номер
19(22)
Опубликована: Июль 16, 2024
Abstract
Over
the
decades,
functionalized
heteroaromatic
compounds
and
their
scaffolds
have
drawn
significant
attention
in
synthetic
organic
chemistry
as
well
interdisciplinary
sciences
due
to
prevalence
natural
products,
hormones,
vitamins,
applications
pharmaceuticals,
agrochemicals,
veterinary
dyes
pigments,
bio‐imaging,
semiconductors,
optoelectronics,
etc.
This
review
explores
various
strategies
for
functionalization
of
numerous
5,6
benzo‐fused
derivatives
such
indole,
benzofuran,
benzothiophene,
benzimidazole,
benzoxazole,
benzothiazole
benzotriazole
through
methods
including
C−H
activation,
cross‐coupling,
metal
catalysis,
photo‐catalysis,
electrocatalysis
organocatalysis
recent
years
(2019–2023).
Highly
heterocyclic
are
important
precursors
synthesizing
many
bioactive
drugs
like
fenbendazole,
viozan,
griseofulvin,
zileuton,
flunoxaprofen,
optoelectronic
materials,
Synthetic Communications,
Год журнала:
2024,
Номер
unknown, С. 1 - 23
Опубликована: Дек. 3, 2024
Phenyl
hydrazine
has
attracted
attention
in
photoredox
catalytic
synthetic
strategies
for
the
formation
of
carbon-carbon
(C-C)
bond
and
Carbon-Heteroatom
(C-N,
C
=
N,
C-P,
C-S,
S-N)
bonds,
because
low
cost
ease
availability
make
it
a
promising
alternative
method
typical
transition
metal
complex-based
photocatalyzed
synthesis.
In
this
review,
we
have
focused
on
recent
radical
coupling
reactions
phenyl
via
photochemical
to
form
carbon–carbon
carbon–heteroatom
(N,
P,
S)
bonds
along
with
mechanism
involved
their
reaction.
