Unlocking Chiral Sulfinimidoyl Electrophiles: Asymmetric Synthesis of Sulfinamides Catalyzed by Anionic Stereogenic-at-Cobalt(III) Complexes
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 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.
Язык: Английский
The Catalytic Synthesis of Aza-Sulfur Functional Groups
Synthesis,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 26, 2024
Abstract
Sulfur-containing
compounds
are
found
in
myriad
applications.
Sulfones
and
sulfonamides
the
most
common
functional
groups
used
medicinal
agrochemical
endeavours.
Isosteres
of
these
groups,
for
example,
sulfoximines
sulfonimidamides,
emerging
functionalities,
they
increasingly
relevant
patent
literature.
However,
general,
associated
synthetic
routes
still
have
limitations,
including
use
harsh
reaction
conditions
highly
reactive
reagents.
A
variety
catalytic
reactions
that
employ
a
diverse
range
substrate
classes
been
developed
to
address
issues.
This
short
review
highlights
recent
syntheses
aza-sulfur
compounds,
which
we
hope
will
open
new
directions
discovery
chemistry.
1
Introduction
2
Reactions
N-Sulfinylamines
3
with
Sulfenamides
4
Sulfinates
5
Sulfinamides
6
Other
Aza-Sulfur
Compounds
7
Conclusion
Язык: Английский
Photoredox-catalyzed deoxygenative radical transformation of alcohols to sulfinamides
RSC Advances,
Год журнала:
2025,
Номер
15(6), С. 4532 - 4535
Опубликована: Янв. 1, 2025
Sulfinamides
play
a
crucial
role
in
organic
synthesis
and
pharmaceuticals.
Язык: Английский
Anionic Stereogenic-at-Cobalt(III) Complex-Enabled Asymmetric Oxidation of N,N-Dialkyl Sulfenamides
Organic Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
An
asymmetric
oxidation
of
N,N-dialkyl
sulfenamides
is
exhibited
by
using
anionic
stereogenic-at-cobalt(III)
complexes
as
catalysts.
This
protocol
provides
an
alternative
approach
to
access
a
diverse
set
chiral
tertiary
sulfinamides
with
high
enantioselectivities
(24
examples,
up
94:6
e.r.).
Additionally,
control
experiments
suggest
that
this
could
be
accomplished
through
cationic
S(IV)
intermediate.
Язык: Английский
Ruthenium-Catalyzed Enantioselective Alkylation of Sulfenamides: A General Approach for the Synthesis of Drug Relevant S-Methyl and S-Cyclopropyl Sulfoximines
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 28, 2025
Sulfoximines
are
increasingly
utilized
in
pharmaceuticals
and
agrochemicals
with
all
sulfoximine
clinical
candidates
incorporating
either
an
S-methyl
or
S-cyclopropyl
substituent.
Here,
we
report
on
a
general
efficient
sequence
for
the
asymmetric
synthesis
of
both
these
substitution
patterns.
The
sulfilimine
intermediates
by
first
Ru-catalyzed
enantioselective
alkylation
sulfenamides
enables
examples
S-alkylation
monosubstituted
diazo
compounds.
reaction
proceeds
at
≤1
mol
%
Ru-catalyst
loading,
tert-butyl
diazoacetate,
high
yields
≥98:2
er
achieved
exceedingly
broad
range
sulfenamides,
including
S-(hetero)aryl,
-alkenyl,
-methyl,
-benzyl,
-branched
alkyl,
-tert-butyl
substituents
sterically
electronically
diverse
N-acyl
groups.
Sulfenamides
derived
from
densely
functionalized
advanced
drug
also
alkylated
99:1
er.
After
oxidation
N-pivaloyl
S-tert-butyl
acetate
substituted
to
corresponding
sulfoximine,
treatment
trifluoracetic
acid
aprotic
solvent
resulted
decarboxylation
while
aqueous
HCl
cleavage
group
give
NH
sulfoximine.
Alternatively,
dibromoethane
followed
acid-mediated
provided
preclinical
candidate
LTGO-33
formal
phase
II
ART0380
demonstrate
utility
disclosed
approach.
Язык: Английский
Asymmetric reductive arylation and alkenylation to access S-chirogenic sulfinamides
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 15, 2025
The
study
of
the
stereochemistry
organic
sulfur
compounds
has
been
ongoing
for
over
a
century,
with
S-chirogenic
pharmacophores
playing
an
essential
role
in
drug
discovery
within
bioscience
and
medicinal
chemistry.
Traditionally,
synthesis
sulfinamides
featuring
stereogenic
sulfur(IV)
centers
involves
complex,
multistep
process
that
often
depends
on
chiral
auxiliaries
or
kinetic
resolution.
Here,
we
introduce
effective
versatile
method
synthesizing
diverse
classes
through
selective
aryl
alkenyl
addition
to
sulfinylamines.
This
is
catalysed
by
nickel
cobalt
complex
under
reductive
conditions,
eliminating
need
preformed
organometallic
reagents.
facilitates
incorporation
array
halides
at
position,
enabling
their
integration
into
various
biologically
significant
pharmacophores.
Our
detailed
mechanistic
investigations
density
functional
theory
calculations
provide
insights
reaction
pathway,
particularly
highlighting
enantiocontrol
mode
during
process.
play
authors
report
methodology
asymmetric
sulfinylamines
via
common-Earth-metal
catalysis.
Язык: Английский
Construction of Sulfur(IV)‐Chiral Six‐Membered Heterocycles by Pd‐Catalyzed Asymmetric (4+2) Dipolar Cyclization
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
Abstract
Chiral
sulfur‐containing
compounds
play
an
important
role
in
asymmetric
catalysis
and
synthesis,
chiral
pharmaceuticals,
materials.
While
great
progress
has
been
made
the
synthesis
of
these
compounds,
catalytic
heterocycles
remains
relatively
limited
compared
to
acyclic
ones.
In
this
study,
we
successfully
report
efficient
highly
selective
structurally
diverse
chirality‐at‐sulfur(IV)
six‐membered
under
mild
conditions
via
a
Pd‐catalyzed
(4+2)
dipolar
cyclization.
More
importantly,
products
enable
enantioselective
preparation
variety
other
S‐stereogenic
derivatives.
Язык: Английский
Strategic Synthesis of Sulfinamides as Versatile S(IV) Intermediates
ACS Organic & Inorganic Au,
Год журнала:
2024,
Номер
5(1), С. 1 - 12
Опубликована: Ноя. 30, 2024
Sulfinamides
constitute
adaptable
S(IV)
intermediates
with
a
sulfur
stereocenter,
having
emerging
interest
in
divergent
synthesis
of
high-valent
S(VI)
functional
bioisosteres.
Recent
years
have
witnessed
the
strategic
development
mild
and
selective
synthetic
routes
for
highly
functionalized
sulfinamides,
employing
stable
organometallic
reagents,
carbon-centered
radical
precursors,
other
abundant
coupling
partners
merged
various
reagents
arena
metal,
photoredox,
organocatalysis.
Furthermore,
asymmetric
metal
organocatalysis
enabled
stereoselective
enantioenriched
sulfinamides.
In
this
Perspective,
we
present
recent
(2021
to
present)
advancement
methods
toward
Язык: Английский