Organic Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 25, 2024
Metal-catalytic
conversion
of
polysulfide
reagents
is
a
major
challenge
in
organic
synthesis
due
to
its
challenging
activation
modes
multiple
S–S
bonds.
The
utilization
aryl
di-
and
trithiosulfonates
nickel-catalyzed
reductive
coupling
with
halides
has
been
unexplored.
Herein,
we
unprecedentedly
describe
PPh3
Zn-collaborative
reduction-induced
nickel-catalytic
selective
C–S
di/trithiosulfonates
access
sulfides
over
common
disulfides
or
trisulfides.
Diverse
mechanistic
studies
indicate
that
the
key
design
such
reaction
could
be
attributed
employment
MgCl2,
which
collaborate
Zn
for
improved
reduction
potential
enables
cleavage
PhSO2(S)naryl
(n
=
2,
3)
electrophilic
sulfur
species
sulfuration
controllable
fashion.
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(18), P. 5278 - 5305
Published: Jan. 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.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 2, 2025
Unsymmetric
disulfides
are
prevalent
in
natural
products
and
essential
medicinal
chemistry
materials
science,
but
their
robust
synthesis
poses
significant
challenges.
In
this
paper,
we
report
an
expeditous
transition-metal-free
methodology
for
synthesizing
unsymmetric
through
the
addition
of
perthiyl
radicals
to
alkenes.
This
study
marks
use
generating
by
reacting
SO2
with
unactivated
alkyl
(pseudo)halides
(Cl/Br/I/OTs).
Various
primary,
secondary
tertiary
substituted
different
functional
groups
successfully
function
as
suitable
reactants.
The
formation
involvement
reaction
process
verified
mechanistic
studies
DFT
calculations.
Overall,
method
leverages
readily
available
electrophiles
alkenes
alongside
a
single
setup
efficiently
form
both
carbon-sulfur
sulfur-sulfur
bonds
simultaneously.
Here,
authors
novel
transition-metalfree
Organic Chemistry Frontiers,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
We
developed
a
photocatalytic
method
for
the
selective
disulfuration
of
aryl
aldehydes
and
alkenyl
using
bifunctional
dithiosulfonate
(ArSO
2
-SSR),
enabling
synthesis
benzoyl
disulfides
chroman-4-ones
with
disulfide
moieties.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
This
paper
presents
a
novel
NHC-BH3-promoted
one-step
synthesis
of
disulfides
and
stibine
sulfides
using
odorless
sulfonyl
hydrazides.
The
protocol
tolerates
various
functional
groups
as
well
heterocyclic
compounds.
Mechanistic
studies
show
that
NHC-BH3
plays
two
roles:
(1)
reducing
hydrazides
into
(2)
promoting
the
cross-coupling
chlorostibine
with
disulfides.
synthesized
also
exhibit
satisfactory
anticancer
activity
against
4T1
MDA-MB-231
cancerous
cells.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
15(1), P. 14 - 22
Published: Dec. 12, 2024
A
Markovnikov-selective
radical
hydrochalcogenation
reaction
of
unactivated
alkenes
via
iron-catalyzed
hydrogen
atom
transfer
was
reported.
Using
N-(arylsulfenyl)arenesulfonamide,
PhSO2SCD3,
S-alkyl
thiosulfonate,
dithiosulfonate
and
Ebselen
derivatives
as
versatile
radicalophiles,
a
wide
range
unsymmetrical
alkyl-aryl,
dialkyl
SCD3
(D
>
99%)
containing
sulfides,
disulfides,
well
organoselenides
have
been
collectively
synthesized
under
mild
conditions.
As
powerful
alternative
to
the
classical
thiol–ene
reaction,
this
protocol
features
exclusive
Markovnikov
selectivity,
good
functional
group
tolerance
broad
substrate
scope.
number
probe
experiments
suggest
proceeds
through
pathway.
The
synthetic
utility
transformation
also
demonstrated
late-stage
modifications
diverse
natural
products
bioactive
molecules.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 9, 2024
Abstract
Unsymmetric
disulfides
are
prevalent
in
natural
products
and
essential
medicinal
chemistry
materials
science,
but
their
robust
synthesis
poses
significant
challenges.
In
this
paper,
we
report
a
novel
transition-metal-free
methodology
for
synthesizing
unsymmetric
through
the
addition
of
perthiyl
radicals
to
alkenes.
This
study
marks
inaugural
use
generating
by
reacting
SO2
with
unactivated
alkyl
(pseudo)halides
(Cl/Br/I/OTs).
Various
primary,
secondary
tertiary
substituted
different
functional
groups
successfully
function
as
suitable
reactants.
The
formation
involvement
reaction
process
were
verified
mechanistic
studies
DFT
calculations.
Overall,
method
leverages
readily
available
electrophiles
alkenes
alongside
single
setup
efficiently
form
both
carbon-sulfur
sulfur-sulfur
bonds
simultaneously.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
work
describes
a
novel
chloride
anion
induced
radical-triggered
S–C
bond
selective
cleavage
of
disulfides
to
access
unsymmetrical
β-fluorodisulfides
by
disulfidefluorination
alkenes.
Reviewing
photocatalytic
and
metal-catalyzed
disulfide
synthesis,
2021–2024,
emphasizes
efficiency,
selectivity,
sustainability
for
drug
material
science.