Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(5), P. 2721 - 2729
Published: Jan. 1, 2024
Herein,
we
report
a
mechanochemical-assisted
decarboxylative
sulfonylation
of
α,β-unsaturated
carboxylic
acids
with
sodium
sulfinate
salts
using
potassium
iodide
as
an
activator
under
water-assisted
grinding
conditions.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(34)
Published: May 31, 2022
Abstract
The
molecular
Suzuki
cross‐coupling
reaction
was
conducted
mechanochemically,
without
solvents,
ligands,
or
catalyst
powders.
Utilizing
one
catalytically
active
palladium
milling
ball,
products
could
be
formed
in
quantitative
yield
as
little
30
min.
In
contrast
to
previous
reports,
the
adjustment
of
parameters
led
complete
elimination
abrasion
from
thus
enabling
first
reported
systematic
analysis.
XPS,
situ
XRD,
and
reference
experiments
provided
evidence
that
ball
surface
location
catalysis,
allowing
a
mechanism
proposed.
versatility
approach
demonstrated
by
extending
substrate
scope
deactivated
even
sterically
hindered
aryl
iodides
bromides.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(20)
Published: March 15, 2023
Abstract
Piezocatalysis
offers
a
means
to
transduce
mechanical
energy
into
chemical
potential,
harnessing
physical
force
drive
redox
reactions.
Working
in
the
solid
state,
we
show
here
that
piezoelectric
BaTiO
3
nanoparticles
can
load
flux
of
reactive
radical
species
capable
initiating
state
free
polymerization.
Activation
powder
by
ball
milling,
striking
with
hammer,
or
repeated
compressive
loading
generates
highly
hydroxyl
radicals
(⋅OH),
which
readily
initiate
chain
growth
and
crosslinking
acrylamide,
acrylate,
methacrylate
styrenic
monomers.
Control
experiments
indicate
critical
role
for
chemisorbed
water
on
nanoparticle
surface,
is
oxidized
⋅OH
via
mechanoredox
catalysis.
The
force‐induced
production
compressing
dry
materials
represents
promising
new
route
harness
synthesis.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(12), P. 4452 - 4457
Published: Jan. 1, 2024
In
this
study,
a
mechanochemical
protocol
for
highly
efficient
and
ammonia-free
sodium-based
Birch
reduction
was
developed,
leveraging
the
use
of
cheap
easy-to-handle
sodium
lumps
d
-(+)-glucose
as
proton
source.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(5), P. 2721 - 2729
Published: Jan. 1, 2024
Herein,
we
report
a
mechanochemical-assisted
decarboxylative
sulfonylation
of
α,β-unsaturated
carboxylic
acids
with
sodium
sulfinate
salts
using
potassium
iodide
as
an
activator
under
water-assisted
grinding
conditions.