Synthesis,
Год журнала:
2023,
Номер
56(13), С. 1967 - 1978
Опубликована: Ноя. 21, 2023
Abstract
The
absorption
of
light
by
photosensitizers
has
been
shown
to
offer
novel
reactive
pathways
through
electronic
excited
state
intermediates,
complementing
ground-state
mechanisms.
Such
strategies
have
applied
in
both
photocatalysis
and
photoredox
catalysis,
driven
generating
intermediates
from
their
long-lived
states.
One
developing
area
is
photoinduced
ligand-to-metal
charge
transfer
(LMCT)
which
coordination
a
ligand
metal
center
subsequent
excitation
with
results
the
formation
radical
reduced
center.
This
mini
review
concerns
foundations
recent
developments
on
transition-metal
focusing
organic
transformations
made
possible
this
mechanism.
1
Introduction
2
Iron
3
Cobalt
4
Nickel
5
Copper
6
Future
Outlook
Conclusion
Chemical Science,
Год журнала:
2023,
Номер
15(1), С. 124 - 133
Опубликована: Ноя. 24, 2023
Simple
iron
salts
are
able
to
photocatalyze
the
diazidation,
dichlorination,
and
fluorochlorination
of
alkenes
via
merger
ligand-to-metal
charge
transfer
(LMCT)
either
radical
ligand
(RLT)
or
fluorine
atom
(FAT).
Chemical Reviews,
Год журнала:
2024,
Номер
124(17), С. 10192 - 10280
Опубликована: Авг. 8, 2024
Radical
C–H
functionalization
represents
a
useful
means
of
streamlining
synthetic
routes
by
avoiding
substrate
preactivation
and
allowing
access
to
target
molecules
in
fewer
steps.
The
first-row
transition
metals
(Ti,
V,
Cr,
Mn,
Fe,
Co,
Ni,
Cu)
are
Earth-abundant
can
be
employed
regulate
radical
functionalization.
use
such
is
desirable
because
the
diverse
interaction
modes
between
metal
complexes
species
including
addition
center,
ligand
complexes,
substitution
single-electron
transfer
radicals
hydrogen
atom
noncovalent
complexes.
Such
interactions
could
improve
reactivity,
diversity,
selectivity
transformations
allow
for
more
challenging
reactions.
This
review
examines
achievements
this
promising
area
over
past
decade,
with
focus
on
state-of-the-art
while
also
discussing
existing
limitations
enormous
potential
high-value
regulated
these
metals.
aim
provide
reader
detailed
account
strategies
mechanisms
associated
Organic Letters,
Год журнала:
2022,
Номер
24(26), С. 4766 - 4771
Опубликована: Июнь 27, 2022
Amide
synthesis
is
one
of
the
most
important
transformations
in
organic
chemistry
due
to
broad
application
pharmaceutical
drugs
and
materials.
In
this
report,
we
describe
a
mild
protocol
for
amide
formation
using
readily
available
nitroarenes
as
nitrogen
sources
an
inexpensive
iron
complex
catalyst.
Because
use
pH-neutral
conditions
avoidance
strong
oxidant
or
reductant,
wide
range
aromatic
aliphatic
aldehydes
well
with
various
functional
groups
could
be
tolerated
well.
A
plausible
mechanism
proposed
based
on
detailed
studies,
which
catalyst
initiates
radical
process
solvent
plays
key
role
O-atom
acceptor.
Chemical Science,
Год журнала:
2023,
Номер
14(35), С. 9374 - 9379
Опубликована: Янв. 1, 2023
Chemically
introducing
diverse
polar
groups
into
polyolefins
via
carbon-hydrogen
bond
alkylation
with
olefins
is
of
substantial
value
in
the
synthesis
next-generation
lightweight
thermoplastics,
which
still
underdeveloped.
In
this
work,
we
report
a
new
approach
for
efficient
commodity
using
photoinduced
iron
catalysis.
Various
could
be
functionalized
broad
scope.
Polar
incorporated
single
step.
The
controllable
multi-polar
functional
achieved
by
designed
module-assembled
process.
Remarkably,
even
low
levels
functionalization
upcycle
polyolefin
materials
to
exhibit
unusual
physical
properties,
such
as
enhancement
transparencies,
strains,
stresses
at
break
materials,
and
hydrophilicity.
Green Chemistry,
Год журнала:
2022,
Номер
24(24), С. 9475 - 9481
Опубликована: Янв. 1, 2022
A
photocatalyst-free
visible-light-promoted
remote
C(sp
3
)–H
heteroarylation
of
N
-fluoroamides
with
quinoxalin-2(1
H
)-ones
was
developed.
All
types
δ-C(sp
bonds
in
the
could
be
site-specific
activated
through
1,5-HAT
process.
Organic Letters,
Год журнала:
2023,
Номер
25(36), С. 6671 - 6676
Опубликована: Авг. 29, 2023
In
this
study,
a
metal-free
difunctionalization
strategy
for
diazenes
was
developed
using
range
of
bifunctionalization
reagents.
This
involves
unique
N(sp3)–N(sp2)
radical
coupling
between
the
hydrazine
and
imine
radical.
More
than
30
triazane
core
motifs
were
constructed
by
installing
imines
various
functional
groups,
including
alkyl,
phenyl,
cyanoalkyl,
sulfonyl
on
both
ends
nitrogen–nitrogen
bond
in
an
efficient
manner.
