Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(34), P. 24105 - 24113
Published: Aug. 15, 2024
The
quest
for
sustainable
strategies
in
molecular
synthesis
has
spurred
the
emergence
of
photocatalysis
as
a
particularly
powerful
technique.
In
recent
years,
application
this
context
greatly
promoted
development
asymmetric
catalysis.
Despite
impressive
advances,
enantioselective
photoinduced
strong
arene
C-H
activations
by
cobalt
catalysis
remain
unexplored.
Herein,
we
report
strategy
that
merges
organic
photoredox
and
cobalt-catalyzed
activation,
enabling
regio-
stereoselective
dual
functionalization
indoles
an
fashion.
Thereby,
assembly
various
chiral
indolo[2,3-
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 1875 - 1924
Published: Aug. 6, 2021
Direct
photocatalyzed
hydrogen
atom
transfer
(d-HAT)
can
be
considered
a
method
of
choice
for
the
elaboration
aliphatic
C–H
bonds.
In
this
manifold,
photocatalyst
(PCHAT)
exploits
energy
photon
to
trigger
homolytic
cleavage
such
bonds
in
organic
compounds.
Selective
bond
may
achieved
by
judicious
abstractor
(key
parameters
are
electronic
character
and
molecular
structure),
as
well
reaction
additives.
Different
classes
PCsHAT
available,
including
aromatic
ketones,
xanthene
dyes
(Eosin
Y),
polyoxometalates,
uranyl
salts,
metal-oxo
porphyrin
tris(amino)cyclopropenium
radical
dication.
The
processes
(mainly
C–C
formation)
most
cases
carried
out
under
mild
conditions
with
help
visible
light.
aim
review
is
offer
comprehensive
survey
synthetic
applications
d-HAT.
Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(22)
Published: April 21, 2022
Abstract
Plastic
waste
remains
a
global
challenge
due
to
the
massive
amounts
being
produced
without
satisfactory
treatment
technologies
for
recycling
and
upcycling.
Photocatalytic
processes
are
emerging
as
green
promising
approaches
upcycle
plastics
into
value‐added
products
under
mild
conditions
using
sunlight
energy
source.
In
this
review,
recent
advances
in
plastic
conversion
through
photocatalysis
have
been
comprehensively
summarized.
Special
emphasis
is
placed
on
photocatalytic
mechanism
selective
CC
CH
bond
transformations
of
access
fuels,
chemicals,
materials.
Finally,
challenges
perspectives
establishing
new
paradigm
toward
sustainable
circular
economy
also
put
forward.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(4), P. 1929 - 1940
Published: Jan. 20, 2022
The
Fujiwara–Moritani
reaction
has
had
a
profound
contribution
in
the
emergence
of
contemporary
C–H
activation
protocols.
Despite
applicability
traditional
approach
different
fields,
associated
reactivity
and
regioselectivity
issues
rendered
it
redundant.
revival
this
exemplary
requires
development
mechanistic
paradigm
that
would
have
simultaneous
control
on
both
regioselectivity.
Often,
high
thermal
energy
required
to
promote
olefination
leads
multiple
site
functionalizations.
To
aim,
we
established
photoredox
catalytic
system
constituting
merger
palladium/organo-photocatalyst
(PC)
forges
oxidative
an
explicit
regioselective
fashion
with
diverse
arenes
heteroarenes.
Visible
light
plays
significant
role
executing
"regioresolved"
reactions
without
requirement
silver
salts
energy.
is
also
amenable
toward
proximal
distal
aided
by
respective
directing
groups
(DGs),
which
entails
versatility
protocol
engaging
entire
spectrum
C(sp2)–H
olefination.
Furthermore,
streamlining
synthesis
natural
products,
chiral
molecules,
drugs,
diversification
through
late-stage
functionalizations
underscore
importance
sustainable
protocol.
photoinduced
attainment
transformation
mechanistically
kinetic
studies.
Organic & Biomolecular Chemistry,
Journal Year:
2020,
Volume and Issue:
19(2), P. 313 - 321
Published: Nov. 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,
Journal Year:
2020,
Volume and Issue:
2021(12), P. 1809 - 1824
Published: Dec. 25, 2020
Abstract
Photochemistry
is
a
tremendous
research
field
offering
many
synthetic
possibilities
to
chemists.
Breakthroughs
in
this
area
have
been
notably
driven
by
the
implementation
of
new
classes
photocatalysts.
Within
context,
Bodipy
(Boron‐dipyrromethene)
dyes
possess
attractive
chemical
and
physical
features
such
as
their
modularity,
strong
absorption
under
visible
light
irradiation,
good
thermal
photochemical
stabilities,
high
fluorescence
quantum
yields.
As
such,
class
compounds
has
found
widespread
applications
functionalized
materials,
biology,
medicine,
or
organic
chemistry.
From
an
organic‐synthetic
point
view,
excited
states
harnessed
electron
energy
transfer
reactions.
This
minireview
collates
relevant
literature
on
these
catalysts
photochemistry
provides
some
perspectives
area.
