The Chemical Record,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 27, 2024
Carbohydrates
are
natural,
renewable,
chemical
compounds
that
play
crucial
roles
in
biological
systems.
Thus,
efficient
and
stereoselective
glycosylation
is
an
urgent
task
for
the
preparation
of
pure
structurally
well-defined
carbohydrates.
Photoredox
catalysis
has
emerged
as
a
powerful
tool
carbohydrate
chemistry,
providing
alternative
addressing
some
challenges
glycochemistry.
Over
last
few
decades,
Ir-
Ru-based
organometallic
photocatalysts
have
attracted
significant
interest
because
their
high
stability,
high-energy
triplet
state,
strong
visible-light
absorption,
long
luminescence
lifetime,
amenability
to
ligand
modification.
This
review
highlights
recent
progress
photocatalyst-promoted
synthesis
modification
carbohydrates
under
photoirradiation,
well
related
benefits
drawbacks.
ACS Catalysis,
Journal Year:
2025,
Volume and Issue:
15(3), P. 1854 - 1941
Published: Jan. 17, 2025
Over
the
past
decade,
visible-light-mediated
energy-transfer
(EnT)
catalysis,
particularly
triplet–triplet
(TTEnT)
has
emerged
as
a
mild
and
environmentally
friendly
approach
for
diverse
organic
synthetic
transformations.
In
contrast
to
photoredox
which
typically
requires
sacrificial
electron
donors
or
acceptors
complete
catalytic
cycle,
EnT
photocatalysis
generally
proceeds
with
high
atom
economy
while
minimizing
generation
of
wasteful
byproducts.
Furthermore,
successful
catalysis
is
contingent
upon
precise
control
redox
potentials
both
photocatalysts
substrates,
strategies
are
primarily
influenced
by
triplet
energy
compatibility
between
these
entities.
Considering
growing
importance
photocatalysis,
well
hydrofunctionalization
difunctionalization
reactions
in
synthesis,
this
review
systematically
summarizes
significant
advancements
EnT-enabled
unsaturated
compounds
via
sigma-bond
homolysis
over
decade.
Special
emphasis
placed
on
elucidating
substrate
scopes
mechanistic
scenarios.
Additionally,
discusses
versatile
applications
methodologies
addresses
current
challenges
opportunities
within
evolving
research
field.
This
structured
into
six
main
categories
based
different
types
sigma-bonds
undergoing
homolysis.
These
include
transformations
mediated
1)
N–O
bond
oxime
esters
other
N,O-radical
precursors;
2)
N–S
N-sulfonyl
imines
N,S-radical
3)
chalcogen–chalcogen
disulfides
oxy/thio/selenosulfonates;
4)
C–S
tri/difluoromethylated
sulfinates,
acetylenic
triflones,
arylsulfonium
salts;
5)
C–X
(X
=
halogen)
halides;
6)
acceptors.
Through
providing
theoretical
backgrounds
along
comprehensive
overview
currently
employed
acceptors,
photosensitizers,
contemporary
EnT-induced
compounds,
aims
serve
an
invaluable
resource
future
innovations
rapidly
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(50), P. 6340 - 6361
Published: Jan. 1, 2024
In
this
review,
the
state-of-the-art
advances
in
radical-involved
C(sp
3
)–N
bond
formation
via
metallaphotoredox
catalysis
have
been
highlighted,
which
are
organized
according
to
different
catalytic
modes,
reaction
types,
and
substrate
classes.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(4), P. 2241 - 2247
Published: Jan. 1, 2024
A
water-soluble
type
II
photosensitizer
with
excellent
water
solubility
was
utilized
for
selective
photooxidation
reactions
of
hydroazaobenzenes,
olefins,
and
hydrosilanes
in
water.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
26(37), P. 7834 - 7840
Published: Sept. 5, 2024
The
Narasaka-Heck
reaction
is
one
of
the
most
straightforward
methods
for
constructing
pyrroline
derivatives.
Herein,
we
report
a
novel
nickel-catalyzed
three-component
carbonylation
reaction,
which
cleverly
realizes
continuous
construction
C(sp
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 2, 2025
A
regioselective
1,2-carboacylation
protocol
of
alkenes
via
nickel/photoredox
dual
catalysis
has
been
successfully
developed
under
mild
conditions.
wide
range
alkyl
bromides,
α-oxocarboxylic
acids,
and
styrenes
proved
to
be
compatible
the
optimized
conditions,
affording
corresponding
products
in
up
91%
yields.
Mechanistically,
key
success
this
approach
is
temporal
orchestration
radical
generation:
nickel-catalyzed
halogen
atom
transfer
(XAT)
for
bromides
photoredox-driven
decarboxylation
acids.
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(17), P. 4913 - 4925
Published: Jan. 1, 2024
This
minireview
highlights
recent
advancements
in
the
past
five
years
(since
2019)
Ni/photoredox
dual
catalysis
for
Csp
3
–Csp
cross-coupling
reactions.
