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:
2023,
Volume and Issue:
145(9), P. 5439 - 5446
Published: Feb. 22, 2023
Direct
construction
of
chiral
S(VI)
from
prochiral
S(II)
is
a
formidable
challenge
due
to
the
inevitable
formation
stable
S(IV).
Previous
synthetic
strategies
rely
on
conversion
S(IV)
or
enantioselective
desymmetrization
preformed
symmetrical
substrates.
Here,
we
report
desymmetrizing
hydrolysis
in
situ-generated
symmetric
aza-dichlorosulfonium
sulfenamides
for
preparation
sulfonimidoyl
chlorides,
which
could
be
used
as
general
synthon
obtaining
series
derivatives.
JACS Au,
Journal Year:
2023,
Volume and Issue:
3(3), P. 700 - 714
Published: Feb. 28, 2023
Sulfur
can
form
diverse
S(IV)
and
S(VI)
stereogenic
centers,
of
which
some
have
gained
significant
attention
recently
due
to
their
increasing
use
as
pharmacophores
in
drug
discovery
programs.
The
preparation
these
sulfur
centers
enantiopure
has
been
challenging,
progress
made
will
be
discussed
this
Perspective.
This
Perspective
summarizes
different
strategies,
with
selected
works,
for
asymmetric
synthesis
moieties,
including
diastereoselective
transformations
using
chiral
auxiliaries,
enantiospecific
compounds,
catalytic
enantioselective
synthesis.
We
discuss
the
advantages
limitations
strategies
provide
our
views
on
how
field
develop.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(15)
Published: Jan. 30, 2024
Abstract
The
combination
of
achiral
Cp*Rh(III)
with
chiral
carboxylic
acids
(CCAs)
represents
an
efficient
catalytic
system
in
transition
metal‐catalyzed
enantioselective
C−H
activation.
However,
this
hybrid
catalysis
is
limited
to
redox‐neutral
activation
reactions
and
the
adopt
oxidative
remains
elusive
pose
a
significant
challenge.
Herein,
we
describe
development
electrochemical
Cp*Rh(III)‐catalyzed
annulation
sulfoximines
alkynes
enabled
by
acid
(CCA)
operationally
friendly
undivided
cell
at
room
temperature.
A
broad
range
enantioenriched
1,2‐benzothiazines
are
obtained
high
yields
excellent
enantioselectivities
(up
99
%
yield
98
:
2
er).
practicality
method
demonstrated
scale‐up
reaction
batch
reactor
external
circulation.
crucial
intermediate
isolated,
characterized,
transformed,
providing
rational
support
for
Rh(III)/Rh(I)
electrocatalytic
cycle.
ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
12(15), P. 9806 - 9811
Published: July 27, 2022
Sulfoximines
bearing
stereogenic
sulfur
atoms
are
ubiquitous
motifs
in
pharmaceuticals,
agricultural
chemicals,
and
bioactive
compounds.
Herein,
we
report
the
synthesis
of
sulfur-stereogenic
sulfoximines
via
Co(III)/chiral
carboxylic
acid-catalyzed
enantioselective
C–H
amidation.
A
broad
range
cyclic
acyclic
were
isolated
good
yields
enantioselectivities
(up
to
an
86%
yield
1.5:98.5
er).
The
amidation
products
can
be
reduced
potential
N,S-chiral
sulfoxide
ligands,
which
could
further
transformed
into
recyclable
chiral
auxiliaries
Pd-catalyzed
diastereoselective
C(sp3)–H
activation
aliphatic
acids.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(7), P. 4581 - 4591
Published: March 16, 2023
The
sulfinamidines
as
aza
analogues
of
sulfinamides
received
limited
attention
from
both
organic
chemists
and
pharmaceutical
chemists.
Herein,
we
present
a
tandem
oxidative/nucleophilic
substitution
approach
for
the
synthesis
in
high
yield
(up
to
98%).
This
cascade
reaction
method
is
enabled
by
N-bromosuccinimide
(NBS)
an
oxidant
diverse
readily
available
amines
nucleophiles
without
any
additives
or
catalysts.
Notably,
this
highly
time-economical,
safe
operate,
easy
scale
up
has
excellent
functional
group
compatibility.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 8, 2025
The
(hetero)aryl
sulfoximines
are
important
structures
for
developing
bioactive
molecules,
whose
synthesis
relies
on
oxidation
of
sulfilimines.
However,
asymmetric
approaches
assembling
sulfilimines
still
rare.
Here
we
show
that
combination
CuI
and
NOBIN-derived
amide
ligands
offers
an
effective
catalytic
system
enantioselective
coupling
iodides
with
sulfenamides.
A
large
number
functional
groups
heterocycles
tolerated
under
the
conditions,
providing
a
powerful
approach
diverse
enantioenriched
efficiency
reaction
is
highly
dependent
electronic
nature
Both
(hetero)aryl-
some
bulky
alkyl-substituted
sulfenamides
give
excellent
enantioselectivities,
while
smaller
alkyl
substituents
lead
to
formation
moderate
enantioselectivities.
Density
theory
(DFT)
calculations
reveal
proper
steric
repulsions
in
transition
states
intramolecular
SNAr
crucial
achieving
desirable
enantioselectivity.
(Hetero)aryl
useful
bioisosteres
sulfones
medicinal
chemistry
as
they
have
improved
aqueous
solubility
metabolic
stability.
Here,
authors
report
via
copper-catalysed
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(47)
Published: July 6, 2023
Chiral
phosphonium
salt
catalysis,
traditionally
classified
as
a
type
of
phase
transfer
has
proven
to
be
powerful
strategy
for
the
stereoselective
preparation
diverse
optically
active
molecules.
However,
there
still
remain
numerous
forbidding
issues
reactivity
and
selectivity
in
such
well-known
organocatalysis
system.
Accordingly,
development
new
high-performance
catalysts
with
unique
chiral
backbones
is
highly
desirable,
yet
challenging.
This
Minireview
describes
prominent
endeavours
family
peptide-mimic
multiple
hydrogen-bonding
donors
their
applications
plethora
enantioselective
synthesis
during
past
few
years.
Hopefully,
this
minireview
will
pave
way
further
developing
much
more
efficient
privileged
ligands/catalysts
featuring
exclusively
catalytic
ability
asymmetric
synthesis.