Tetrahedron Chem,
Год журнала:
2025,
Номер
unknown, С. 100119 - 100119
Опубликована: Янв. 1, 2025
An
efficient
strategy
for
intramolecular
oxidative
cyclization
of
2-alkynylthioanisoles
toward
3-acylbenzo[b]thiophenes
by
photochemical
hydrogen
atom
transfer
catalysis
has
been
developed.
3-Acylbenzo[b]selenophenes,
benzofurans
and
indoles
can
also
be
prepared
this
protocol.
This
reaction
is
convenient
to
perform
at
room
temperature
under
simple
conditions
using
air
as
the
oxidant.
Mechanistic
studies
revealed
that
formation
α-thioalkyl
radicals
intermediate
crucial.Graphical
abstract
Chemical Science,
Год журнала:
2024,
Номер
15(4), С. 1204 - 1236
Опубликована: Янв. 1, 2024
This
review
article
highlights
the
diverse
ways
in
which
recent
developments
areas
of
photocatalysis
and
visible
light
photochemistry
are
impacting
synthetic
carbohydrate
chemistry.
ACS Catalysis,
Год журнала:
2025,
Номер
15(3), С. 1635 - 1654
Опубликована: Янв. 15, 2025
Metallaphotoredox
cross
coupling
(MCC)
is
ranking
among
the
most
advanced
synthetic
methodology
as
it
can
access
chemical
space
that
difficult
to
attain
under
conventional
conditions.
Earlier
developed
MCC
mandates
an
independent
transition
metal
catalyst
and
respective
photocatalyst,
thus
constituting
a
dual
catalytic
manifold.
Complementarily,
paradigm-shifting
metallaphotoredox
strategy
capitalizes
on
single
photoreactive
complex
emerging,
which
brings
not
only
operational
simplification
but
also
unexpected
mechanistic
insights.
This
perspective
compiled
recent
advances
in
monocatalytic
couplings
categorized
them
based
ligands
confer
distinct
photoreactivities
various
mechanisms.
To
this
end,
ligand-enabled
oxidative
addition,
transmetalation,
reductive
elimination
other
radical-involving
pathways
were
summarized
with
notable
examples.
In
way,
we
wish
provide
handy
guideline
for
readers
who
are
interested
emerging
field
inspire
more
future
endeavors
MCCs
beyond.
Organic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(18), С. 5278 - 5305
Опубликована: Янв. 1, 2024
This
review
summarizes
the
latest
methodological
advances
in
photocatalytic
C(sp
3
)–H
functionalization,
with
a
particular
emphasis
on
formation
of
C–P,
C–B,
C–S
bonds,
etc
.,
and
some
prominent
efforts
asymmetric
C–H
functionalization.
Chemical Communications,
Год журнала:
2024,
Номер
60(72), С. 9659 - 9691
Опубликована: Янв. 1, 2024
The
twelve
principles
of
green
chemistry
illuminate
the
pathway
in
direction
sustainable
and
eco-friendly
synthesis,
marking
a
fundamental
shift
synthetic
organic
paradigms.
In
this
realm,
harnessing
power
visible
light
for
difunctionalization
various
skeletons
without
employing
any
external
oxidant
or
reductant,
specifically
termed
as
redox-neutral
difunctionalization,
has
attracted
tremendous
interest
from
chemists
due
to
its
low
cost,
easy
availability
environmentally
friendly
nature
contrast
traditional
metal-catalyzed
difunctionalizations.
This
review
presents
an
overview
recent
updates
on
visible-light-induced
reactions
with
literature
coverage
up
May
2024.
Organic Letters,
Год журнала:
2024,
Номер
26(1), С. 304 - 309
Опубликована: Янв. 2, 2024
Reported
herein
is
direct
C(sp3)–H
arylation
of
unprotected
benzyl
anilines
and
alkylarenes
via
consecutive
photoinduced
electron
transfer
by
visible
light
irradiation.
Reductive
quenching
cycles
radical–radical
cross-coupling
were
involved,
paramagnetic
resonance
experiments
provide
evidence
for
the
formation
radical
intermediates
formed
in
situ.
The
protocol
highlights
transition
metal
free,
external
oxidant
broad
substrate
scope,
high
efficiency
(>60
examples,
up
to
96%).
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(9), С. 6539 - 6544
Опубликована: Апрель 20, 2024
The
direct
alkylation
of
heteroarenes
with
alkanes
has
been
successfully
achieved
through
visible-light-induced
hypervalent
iodine-mediated
C–H
functionalization
both
coupling
partners
at
ambient
temperatures.
This
reaction
proceeds
via
the
in
situ
generation
nucleophilic
alkyl
radicals
from
hydrogen
atom
transfer
(HAT),
followed
by
a
Minisci-type
heteroarenes.
These
mild
conditions
have
demonstrated
their
suitability
for
wide
range
heterocycles,
including
azoles,
pyridines,
quinolines,
isoquinolines,
and
quinoxalinones.
Chemical Science,
Год журнала:
2024,
Номер
15(31), С. 12398 - 12409
Опубликована: Янв. 1, 2024
The
philicity-regulation
and
PCET
mechanism
of
tether-tunable
distonic
radical
anion-mediated
generation
heteroatom-centered
radicals
has
been
explored
via
experimental
theoretical
investigations.
Inorganic Chemistry Frontiers,
Год журнала:
2023,
Номер
11(1), С. 11 - 28
Опубликована: Ноя. 20, 2023
The
role
and
classification
of
rare
earth
elements
in
photocatalysts
are
summarized,
with
the
aim
providing
suggestions
for
future
development
photocatalysts.
