Chemical Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
A
simple
cobalt-catalytic
aerobic
approach
for
the
direct
dithiolation
of
unactivated
alkenes
with
thiols
has
been
established,
enabling
efficient
access
to
symmetric
and
unsymmetric
vicinal
dithioethers
under
mild
reaction
conditions.
Organic Letters,
Год журнала:
2024,
Номер
26(3), С. 591 - 596
Опубликована: Янв. 12, 2024
In
the
presence
of
a
thiyl
radical
species,
catalytic
Markovnikov
thiol–ene
reaction
is
challenging
because
it
prefers
to
proceed
via
pathway,
thereby
leading
anti-Markovnikov
selectivity.
this
work,
rare
example
engaged
in
enabled
by
cobalt
catalysis
reported.
This
protocol
features
avoidance
unique
oxidants,
exclusive
regioselectivity,
and
broad
substrate
scope.
Scalable
synthesis
late-stage
modification
complex
molecules
demonstrate
practicability
protocol.
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
42(22), С. 2751 - 2756
Опубликована: Июль 12, 2024
Comprehensive
Summary
The
EDA
complex‐mediated
reactions
involving
oxime
esters
have
been
few
studied.
Herein,
an
complex
formed
by
thiophenolate
anion
and
ester
is
reported
for
photoinduced
divergent
synthesis
of
thioethers,
depending
on
different
types
esters.
Operational
simplicity,
mild
reaction
conditions,
flexible
options
leaving
group
demonstrate
the
generality
synthetic
utility
this
approach.
Such
approach
can
also
enable
interesting
thiol‐catalysis
phenanthridines.
The
construction
of
three-component
supramolecular
organic
frameworks
(SOFs)
remains
a
challenge
in
this
field
due
to
the
complex
noncovalent
interactions
involved
and
limitations
existing
preparation
methods.
In
study,
we
designed
synthesized
two
photosensitive
modules,
with
naphthalene-modified
triphenylamine
derivative
(NA-TPA)
as
donor
unit
methylated-viologen-modified
benzothiadiazole
(DPBT)
acceptor
unit,
which
can
self-assemble
into
two-dimensional
framework
(SOF)
through
encapsulation-enhanced
donor–acceptor
interaction
cucurbit[8]uril
(CB[8])
water.
SOF
not
only
nanosheet
morphology
water
but
also
exhibit
excellent
luminescence
enhancement
performance.
Compared
monomers
NA-TPA
DPBT,
effectively
promote
electron
transfer
greatly
improve
ability
produce
superoxide
anion
radicals
(O2•–),
be
used
photocatalyze
thiol–ene
cross-coupling
reaction
yield
up
90%.
This
work
provides
useful
exploration
for
SOFs
photocatalytic
application.
Organic Chemistry Frontiers,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
A
bifunctional
iron-mediated
multicomponent
reaction
for
Markovnikov-selective
hydrothiolation
of
alkenes
has
been
established.
The
involves
an
hydrogen
atom
transfer
and
a
single
electron
process.
ACS Catalysis,
Год журнала:
2024,
Номер
15(1), С. 14 - 22
Опубликована: Дек. 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.
We
report
a
novel
cobalt-catalyzed
intramolecular
1,4-hydrofunctionalization
of
dienes.
The
reaction
proceeds
under
mild
conditions
and
is
amenable
to
N-
O-nucleophiles.
protocol
exhibits
exclusive
regioselectivity,
yielding
number
different
alkenyl
heterocycles,
including
but
not
limited
dihydroisobenzofurans,
isochromanes,
tetrahydrofurans,
morpholines,
lactones,
isoindolines.
Experimental
studies
were
performed
offer
some
insight
into
the
mechanistic
pathways
rationalize
regio-
stereoselectivities
reaction.
Organic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(23), С. 6684 - 6693
Опубликована: Янв. 1, 2024
A
supramolecular
dimer
based
on
anthraquinone
was
constructed
through
host–guest
interactions,
which
can
not
only
improve
the
generation
capacity
of
reactive
oxygen
species,
but
also
be
used
as
photocatalysts
for
photocatalytic
C–S
coupling
reaction.