New Journal of Chemistry,
Год журнала:
2024,
Номер
49(3), С. 651 - 668
Опубликована: Дек. 10, 2024
Sulfide
is
a
widely
occurring
natural
product
and
pharmaceutically
active
compound.
This
review
highlights
the
photochemically
mediated
thioether
synthesis
reactions,
with
emphasis
on
catalytic
mechanism.
ACS Catalysis,
Год журнала:
2025,
Номер
15(3), С. 1854 - 1941
Опубликована: Янв. 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
Organic Letters,
Год журнала:
2024,
Номер
26(18), С. 3828 - 3833
Опубликована: Апрель 29, 2024
The
photocatalyzed
radical-triggered
thio/selenosulfonylation–bicyclization
of
indole-tethered
1,6-enynes
has
been
established
for
the
first
time,
enabling
synthesis
various
previously
unreported
thio/selenosulfonylated
benzo[c]pyrrolo[1,2,3-lm]carbazoles
with
moderate
to
good
yields
under
mild
conditions.
reaction
pathway
was
proposed,
consisting
energy
transfer,
homolytic
cleavage,
radical
addition,
5-exo-dig,
coupling,
and
a
Mallory
cascade.
This
approach
exhibits
wide
substrate
compatibility
excellent
tolerability
toward
functional
groups
is
characterized
by
its
remarkable
efficiency
in
both
bond
formation
annulation.
Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(19), С. 4972 - 5027
Опубликована: Янв. 1, 2023
This
review
comprehensively
summarizes
the
dichalcogenative
functionalization
of
unsaturated
compounds
over
past
decade.
The
scopes,
limitations
and
detailed
reaction
mechanisms
are
also
discussed.
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
42(12), С. 1367 - 1372
Опубликована: Фев. 23, 2024
Comprehensive
Summary
The
selective
oxidative
sulfonylation
of
alkenes
with
selenium
sulfonate
depended
on
the
reaction
conditions.
electrochemical
C—H
proceeded
smoothly
to
afford
(
E
)‐vinyl
sulfones
good
selectivity
in
an
undivided
cell
without
external
oxidant.
While
aerobic
trifunctionalization
occurred
presence
KI
air,
which
provides
β
‐keto
selenosulfones
via
formation
C—O,
C—S,
and
C—Se
bonds
one‐pot.
Following
control
experiments,
a
plausible
mechanism
is
proposed
rationalize
experimental
results.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(8), С. 1763 - 1769
Опубликована: Март 1, 2024
Abstract
The
direct
conversion
of
specific
C−H
bonds
to
C−Si
in
alkanes
or
aromatics
via
catalytic
methods
has
attracted
growing
research
interest.
Herein,
we
report
the
preparation
a
new
iridium
catalyst
supported
on
naphthyridine‐based
porous
organic
polymer
and
its
successful
application
dehydrogenative
silylation
2‐arylphenols
alcohol
hydrosilanes
access
ring‐fused
oxasilacycles.
synthetic
method
exhibits
broad
substrate
scope
good
functional
group
compatibility
while
avoiding
use
hydrogen
acceptors.
In
addition,
this
could
be
easily
recovered
from
reaction
system
reused
for
at
least
seven
times
without
apparent
deactivation.
This
provides
insights
further
design
heterogeneous
nanocatalysts
contributes
synthesis
silicon‐substituted
molecules.
Abstract
Sulfur‐containing
amino
acids
and
peptides
play
critical
roles
in
organisms.
Thiol‐ene
reactions
between
the
thiol
residues
of
L
‐cysteine
alkenyl
fragments
designed
coupling
partners
serve
as
primary
tools
for
constructing
C─S
bonds
synthesis
unnatural
sulfur‐containing
acid
derivatives.
These
are
favored
due
to
preference
hydrogen
transfer
from
β‐sulfanyl
carbon
radical
intermediates.
In
this
paper,
study
proposes
utilizing
carbon‐centered
radicals
stabilized
by
capto‐dative
effect,
generated
under
photocatalytic
conditions
N
–aryl
glycine
The
aim
is
compete
with
hydrogen,
enabling
C─C
bond
formation
radicals.
This
protocol
robust
presence
air
water,
offers
significant
potential
a
modular
efficient
platform
synthesizing
modifying
peptides,
particularly
abundant
disulfides
styrenes.
Organic Letters,
Год журнала:
2023,
Номер
25(51), С. 9207 - 9212
Опубликована: Дек. 19, 2023
Sulfone
compounds
and
thioether
are
two
highly
valuable
classes
of
compounds,
but
it
is
challenging
to
prepare
sulfone
simultaneously
efficiently.
Here
we
report
that
sulfides/selenides
sulfones
can
be
obtained
using
allyl
bromide/benzyl
bromide-activated
alkyl
bromides
thiosulfonates/selenosulfonates
a
nickel-catalyzed
reductive
coupling
SN2
synergistic
strategy,
which
characterized
by
excellent
atom
step
economy,
mild
reaction
conditions,
broad
functional
group
compatibility,
yields.
Chinese Journal of Organic Chemistry,
Год журнала:
2023,
Номер
43(10), С. 3454 - 3454
Опубликована: Янв. 1, 2023
Silahydrocarbons
are
often
encountered
in
pharmaceuticals
and
material
chemistry.In
comparison
with
all-carbon
parent
compounds,
carbon/silicon
switch
generally
endows
the
corresponding
compounds
different
biological
activity
physical-chemical
properties.In
this
review,
methods
strategies
of
synthesis
organosilanes
by
photoredox
recent
years
reviewed,
reaction
mechanisms
limitations
discussed.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(10), С. 2324 - 2333
Опубликована: Апрель 3, 2024
Abstract
In
this
manuscript
we
report
the
synthesis
of
3‐amido‐benzo[
b
]silines
thanks
to
a
2‐step
strategy
involving
3‐component
silylformylation
ynamides
followed
by
Friedel‐Crafts
cyclization/isomerizing
dehydration
domino
sequence.
This
reaction
is
tolerant
various
structural
variations
and
has
allowed
us
synthesize
library
diversely
substituted
silacycles
with
yields
from
33
85%.
We
also
studied
fluorescence
properties
these
compounds
which
show
similarities
recognized
probes
such
as
Si‐Rhodamine
for
example.