Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Sulfur‐centered
electrophilic
‘warheads’
have
emerged
as
key
components
for
chemical
proteomic
probes
through
sulfur‐exchange
chemistry
(SuFEx)
with
protein
nucleophiles.
Among
these
functional
groups,
sulfonimidoyl
fluorides
(SIFs)
stand
out
their
modifiable
sites,
tunable
electrophilicities,
and
chiral
sulfur‐center,
presenting
exciting
possibilities
new
covalent
probes.
However,
the
synthetic
access
to
SIFs
has
been
a
challenge,
limiting
exploration
applications.
In
this
study,
we
describe
convenient
route
obtain
from
readily
available
sulfenamides
via
series
of
one‐pot
tandem
reactions
high
enantiomeric
excess
(ees).
The
resulting
were
further
converted
into
diverse
array
S(VI)
derivatives
under
mild
conditions
or
in
buffer
solutions.
Most
significantly,
specificity
ligation
experiments
underscored
critical
role
sulfur‐center
chirality
design
screening
more‐selective
therapeutics.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Asymmetric
catalysis
involving
a
sulfoxide
electrophile
intermediate
presents
an
efficient
methodology
for
accessing
stereogenic-at-sulfur
compounds,
such
as
sulfinate
esters,
sulfinamides,
etc.,
which
have
garnered
increasing
attention
in
modern
pharmaceutical
sciences.
However,
the
aza-analog
of
electrophiles,
asymmetric
issues
about
electrophilic
sulfinimidoyl
species
remain
largely
unexplored
and
represent
significant
challenge
sulfur
stereochemistry.
Herein,
we
exhibit
anionic
stereogenic-at-cobalt(III)
complex-catalyzed
synthesis
chiral
sulfinamides
via
iodide
intermediates.
Mechanistic
investigations
reveal
that
catalytic
cycle
is
initiated
by
oxidative
iodination,
generating
iodides.
These
active
intermediates
subsequently
undergo
enantiospecific
nucleophilic
substitution
with
water,
affording
diverse
array
enantioenriched
sulfinamides.
Notably,
these
promising
antifungal
activities
against
Sclerotinia
sclerotiorum
serve
ideal
platform
molecules
facilitating
stereospecific
transformation
into
various
stereogenic
aza-sulfur
compounds.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(13)
Published: Jan. 29, 2024
Organic
molecules
bearing
chiral
sulfur
stereocenters
exert
a
great
impact
on
asymmetric
catalysis
and
synthesis,
drugs,
materials.
Compared
with
acyclic
ones,
the
catalytic
synthesis
of
thio-heterocycles
has
largely
lagged
behind
due
to
lack
efficient
synthetic
strategies.
Here
we
establish
first
modular
platform
access
thio-oxazolidinones
via
Pd-catalyzed
[3+2]
annulations
vinylethylene
carbonates
sulfinylanilines.
This
protocol
is
featured
by
readily
available
starting
materials,
high
enantio-
diastereoselectivity.
In
particular,
an
unusual
effect
non-chiral
supporting
ligand
diastereoselectivity
was
observed.
Possible
reaction
mechanisms
stereocontrol
models
were
proposed.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
26(8), P. 1566 - 1572
Published: Feb. 16, 2024
Construction
of
asymmetric
C–S
bonds
was
realized
via
electrochemical
catalysis
in
the
presence
a
chiral
nickel
complex.
The
reaction
can
be
carried
out
with
excellent
stereoselectivity
and
great
functional
group
tolerance.
corresponding
products
provide
crucial
precursors
for
some
materials
pharmaceutical
drugs.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(26), P. 17587 - 17594
Published: June 24, 2024
Sulfinamides
have
been
widely
used
in
organic
synthesis,
with
research
on
their
preparation
spanning
more
than
a
century.
Despite
advancements
catalytic
methodologies,
creating
sulfur
stereocenters
within
these
molecules
remains
significant
challenge.
In
this
study,
we
present
an
effective
and
versatile
method
for
synthesizing
diverse
range
of
S-chirogenic
sulfinamides
through
asymmetric
aryl
addition
to
sulfinylamines.
By
utilizing
nickel
complex
as
catalyst,
process
exhibits
impressive
enantioselectivity
can
incorporate
various
arylboronic
acids
at
the
position.
The
resulting
synthetic
are
stable
highly
adaptable,
allowing
conversion
variety
sulfur-containing
compounds.
Our
study
also
incorporates
detailed
experimental
computational
studies
elucidate
reaction
mechanism
factors
influencing
enantioselectivity.
Frontiers in Chemistry,
Journal Year:
2024,
Volume and Issue:
12
Published: May 9, 2024
Asymmetric
catalysis
stands
at
the
forefront
of
modern
chemistry,
serving
as
a
cornerstone
for
efficient
creation
enantiopure
chiral
molecules
characterized
by
their
high
selectivity.
In
this
review,
we
delve
into
realm
asymmetric
catalytic
reactions,
which
spans
various
methodologies,
each
contributing
to
broader
landscape
enantioselective
synthesis
molecules.
Transition
metals
play
central
role
catalysts
wide
range
transformations
with
ligands
such
phosphines,
N
-heterocyclic
carbenes
(NHCs),
etc.,
facilitating
formation
C-C
and
C-X
bonds,
enabling
precise
control
over
stereochemistry.
Enantioselective
photocatalytic
reactions
leverage
power
light
driving
force
electrocatalysis
has
emerged
sustainable
approach,
being
both
atom-efficient
environmentally
friendly,
while
offering
versatile
toolkit
reductions
oxidations.
Biocatalysis
relies
on
nature’s
most
catalysts,
i.e.,
enzymes,
provide
exquisite
selectivity,
well
tolerance
diverse
functional
groups
under
mild
conditions.
Thus,
enzymatic
optical
resolution,
kinetic
resolution
dynamic
have
revolutionized
production
compounds.
organocatalysis
uses
metal-free
organocatalysts,
consisting
modular
phosphorus,
sulfur
nitrogen
components,
remarkably
transformations.
Additionally,
unlocking
traditionally
unreactive
C-H
bonds
through
selective
functionalization
expanded
arsenal
synthesis,
atom-economical
construction
Incorporating
flow
chemistry
been
transformative,
continuous
systems
reaction
conditions,
enhancing
efficiency
optimization.
Researchers
are
increasingly
adopting
hybrid
approaches
that
combine
multiple
strategies
synergistically
tackle
complex
synthetic
challenges.
This
convergence
holds
great
promise,
propelling
field
forward
in
form.
As
these
methodologies
evolve
complement
one
another,
they
push
boundaries
what
can
be
accomplished
leading
discovery
novel,
highly
may
lead
groundbreaking
applications
across
industries.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 22, 2024
Abstract
The
enantioselective
synthesis
of
S
-stereogenic
sulfinamides
has
garnered
considerable
attention
due
to
their
structural
and
physicochemical
properties.
However,
catalytic
asymmetric
still
remains
daunting
challenges,
impeding
broad
application
in
drug
discovery
development.
Here,
we
present
an
approach
for
the
through
peptide-mimic
phosphonium
salt-catalyzed
skeletal
reorganization
simple
prochiral
and/or
racemic
sulfoximines.
This
methodology
allows
facile
access
a
diverse
array
substituted
with
excellent
enantioselectivities,
accommodating
various
substituent
patterns
desymmetrization
or
parallel
kinetic
resolution
process.
Mechanistic
experiments,
coupled
density
functional
theory
calculations,
clarify
stepwise
pathway
involving
ring-opening
ring-closing
processes,
step
identified
as
crucial
achieving
stereoselective
control.
Given
prevalence
centers
pharmaceuticals,
anticipate
that
this
protocol
will
enhance
efficient
precise
relevant
chiral
molecules
analogs,
thereby
contributing
advancements
discovery.