New Journal of Chemistry,
Год журнала:
2021,
Номер
45(20), С. 9212 - 9220
Опубликована: Янв. 1, 2021
Cellulose
acetate
nanofiber
membranes
containing
hydroxyapatite
co-doped
with
Ag/Fe
are
effective
towards
the
degradation
of
MB
dye
in
aqueous
solutions.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(16)
Опубликована: Янв. 29, 2024
Abstract
We
highlight
key
contributions
in
the
field
of
direct
radical
C
Ar
−
H
(hetero)aromatic
functionalization
involving
fluorinated
radicals.
A
compilation
Functional
Group
Transfer
Reagents
and
their
diverse
activation
mechanisms
leading
to
release
radicals
are
discussed.
The
substrate
scope
for
each
is
analyzed
classified
into
three
categories
according
electronic
properties
substrates.
Density
functional
theory
computational
analysis
provides
insights
chemical
reactivity
several
through
electrophilicity
nucleophilicity
parameters.
Theoretical
reduction
potentials
also
highlights
remarkable
correlation
between
oxidizing
ability.
It
established
that
highly
(e.g.
⋅OCF
3
)
capable
engaging
single‐electron
transfer
(SET)
processes
rather
than
addition,
which
good
agreement
with
experimental
literature
data.
scale,
based
on
barrier
addition
these
benzene
elaborated
using
high
accuracy
DLPNO‐(U)CCSD(T)
method.
RSC Advances,
Год журнала:
2025,
Номер
15(5), С. 3928 - 3953
Опубликована: Янв. 1, 2025
This
review
studies
magnetically
recoverable
catalysts
designed
for
the
efficient
multicomponent
synthesis
of
organosulfur
compounds.
These
enhance
process
by
combining
efficiency
with
environmental
sustainability.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(37)
Опубликована: Июль 12, 2022
Abstract
Simple
access
to
aryl
sulfinates
from
iodides
and
bromides
is
reported
using
an
inexpensive
Ni‐electrocatalytic
protocol.
The
reaction
exhibits
a
broad
scope,
uses
stock
solution
of
simple
SO
2
as
sulfur
source,
can
be
scaled
up
in
batch
recycle
flow
settings.
limitations
this
are
clearly
shown
put
into
context
by
benchmarking
with
state‐of‐the‐art
Pd‐based
methods.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(16)
Опубликована: Фев. 10, 2023
We
herein
report
a
method
that
enables
the
generation
of
glycosyl
radicals
under
highly
acidic
conditions.
Key
to
success
is
design
and
use
sulfinates
as
radical
precursors,
which
are
bench-stable
solids
can
be
readily
prepared
from
commercial
starting
materials.
This
development
allows
installation
units
onto
pyridine
rings
directly
by
Minisci
reaction.
further
demonstrate
utility
this
in
late-stage
modification
complex
drug
molecules,
including
anticancer
agent
camptothecin.
Experimental
studies
provide
insight
into
reaction
mechanism.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(38), С. 20767 - 20774
Опубликована: Сен. 18, 2023
Sulfinates
are
important
lynchpin
intermediates
in
pharmaceutical
production;
however,
their
synthesis
via
photoredox
catalysis
is
challenging
because
of
facile
oxidation.
We
herein
disclose
a
photocatalytic
strategy
for
the
direct
conversion
alcohols
and
alkyl
bromides
into
sulfinates.
These
transformations
enabled
by
utilization
easily
oxidized
radical
precursors─namely,
alcohol
N-heterocyclic
carbene
adducts
N-adamantyl
aminosupersilane─that
facilitate
efficient
oxidatively
labile
sulfinate
products.
A
broad
range
functional
groups
amenable
to
reported
transformations,
providing
rapid
access
sulfonamides,
sulfonyl
halides,
sulfones,
sulfonic
acids.
The
utility
these
methods
further
demonstrated
late-stage
diversification
natural
products
drugs
pharmaceutically
relevant
sulfonamides
"clickable"
fluorides.
In
summary,
this
work
illustrates
potential
novel
precursors
expand
breadth
transformations.
Chemistry - A European Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 14, 2024
Photosynthesis,
converting
sustainable
solar
energy
into
chemical
energy,
has
emerged
as
a
promising
craft
to
achieve
diverse
organic
transformations
due
its
mild
reaction
conditions,
sustainability,
and
high
efficiency.
The
synthesis
of
sulfonated
compounds
drawn
significant
attention
in
the
pharmaceuticals,
agrochemicals,
materials
industries
unique
structure
electronic
properties
sulfonyl
groups.
Over
past
decades,
many
photocatalytic
sulfonylation
reactions
have
been
developed.
In
this
review,
recent
advances
photocatalyzed
reviewed
since
2020,
with
primary
focus
on
discussing
design
mechanism.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(27), С. 18639 - 18649
Опубликована: Июнь 25, 2024
Postconsumer
plastics
are
generally
perceived
as
valueless
with
only
a
small
portion
of
plastic
waste
being
closed-loop
recycled
into
similar
products
while
most
them
discarded
in
landfills.
Depositing
landfills
not
harms
the
environment
but
also
signifies
substantial
economic
loss.
Alternatively,
constructing
value-added
chemical
feedstocks
via
mining
waste-derived
intermediate
species
carbon
(C)
source
under
mild
electrochemical
conditions
is
sustainable
strategy
to
realize
circular
economy.
This
proof-of-concept
work
provides
an
attractive
"turning
trash
treasure"
by
integrating
electrocatalytic
polyethylene
terephthalate
(PET)
upcycling
C–S
coupling
reaction
synthesize
organosulfur
compounds,
hydroxymethanesulfonate
(HMS).
HMS
can
be
produced
efficiently
(Faradaic
efficiency,
FE
∼70%)
deliberately
capturing
electrophilic
intermediates
generated
PET
monomer
(ethylene
glycol,
EG)
process,
followed
nucleophilic
sulfur
(S)
(i.e.,
SO32–
and
HSO3–).
Unlike
many
previous
studies
conducted
alkaline
conditions,
was
performed
over
amorphous
MnO2
catalyst
near-neutral
allowing
for
stabilization
intermediates.
The
compatibility
this
further
investigated
employing
biomass-derived
compounds
substrates.
Moreover,
comparable
yields
achieved
real-world
plastics,
showing
its
enormous
potential
practical
application.
Lastly,
Density
function
theory
(DFT)
calculation
reveals
that
C–C
cleavage
step
EG
rate-determining
(RDS),
significantly
decreases
energy
barriers
both
RDS
when
compared
crystalline
counterpart.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июнь 19, 2024
Abstract
Sulfur-containing
scaffolds
originating
from
small
alkyl
fragments
play
a
crucial
role
in
various
pharmaceuticals,
agrochemicals,
and
materials.
Nonetheless,
their
synthesis
using
conventional
methods
presents
significant
challenges.
In
this
study,
we
introduce
practical
efficient
approach
that
harnesses
hydrogen
atom
transfer
photocatalysis
to
activate
volatile
alkanes,
such
as
isobutane,
butane,
propane,
ethane,
methane.
Subsequently,
these
nucleophilic
radicals
react
with
SO
2
yield
the
corresponding
sulfinates.
These
sulfinates
then
serve
versatile
building
blocks
for
of
diverse
sulfur-containing
organic
compounds,
including
sulfones,
sulfonamides,
sulfonate
esters.
Our
use
flow
technology
offers
robust,
safe
scalable
platform
effectively
activating
challenging
gaseous
facilitating
transformation
into
valuable
Green Chemistry,
Год журнала:
2024,
Номер
26(11), С. 6774 - 6778
Опубликована: Янв. 1, 2024
A
novel
and
attractive
photochemical
difunctionalization
of
N
-tosyl
acrylamide
for
constructing
alkylsulfonylated
oxindoles
amides
with
excellent
substrate
adaptability
via
a
radical
Smiles
rearrangement
strategy
is
described.