Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(43), P. 23197 - 23201
Published: Aug. 19, 2021
A
novel
and
very
simple
to
perform
electrochemical
approach
for
the
synthesis
of
several
N-cyanosulfilimines
in
good
excellent
yields
was
established.
This
method
provides
access
biologically
relevant
sulfoximines
by
consecutive
oxidation
using
electro-generated
periodate.
route
can
be
easily
scaled-up
gram
quantities.
The
S,N
coupling
is
carried
out
at
an
inexpensive
carbon
anode
direct
sulfide.
Therefore,
designed
process
atom
economic
represents
a
new
"green
route"
sulfilimines
sulfoximines.
Advanced Sustainable Systems,
Journal Year:
2022,
Volume and Issue:
6(4)
Published: Jan. 12, 2022
Abstract
This
work
represents
a
new
method
that
uses
electrochemically
generated
periodate
to
oxidize
side‐stream
lignins.
Using
periodate,
lignin‐derived
product
other
than
vanillin
becomes
accessible.
The
development
of
an
eco‐friendly
for
generating
5‐iodovanillin
from
lignin
is
reported
and
significant
interest
the
wood‐based
industry.
Wider
utilization
can
substitute
fossil‐based
chemicals
fuels,
reduce
emission
greenhouse
gases,
facilitate
dependence
on
fossil
energy.
reaction
conditions
are
easy
conduct,
modified,
no
specific
setup
required.
one‐pot
cost‐efficient
does
not
use
toxic
or
harmful
metals
yields
more
15
wt%
5‐iodovanillin.
5‐Iodovanillin
advanced
building
block
synthesis
complex
molecules,
such
as
active
pharmaceutical
ingredients.
Advanced Sustainable Systems,
Journal Year:
2022,
Volume and Issue:
7(4)
Published: Dec. 25, 2022
Abstract
A
new
method
is
presented
using
electrochemically
generated
ferrate
to
degrade
the
technically
relevant
bio‐based
side‐stream
products,
lignin
and
lignosulfonate.
An
exclusive
degradation
vanillic
acid
found,
which
was
previously
a
reported
by‐product.
As
natural
resource,
can
be
utilized
substitute
fossil‐based
chemicals
in
industry
reduce
greenhouse
gas
emissions
positively
impact
climate
change.
Ferrate
from
grey
cast
iron
sacrificial
anodes
40
wt%
NaOH
with
current
efficiency
of
over
22%
at
density
up
100
mA
cm
−2
.
Vanillic
obtained
as
sole
product
after
optimizing
reaction
parameters,
temperature,
time,
concentration
for
lignosulfonate
via
design
experiments.
result,
yields
7.2
flavoring
agent
antioxidant
are
achieved.
The
two‐step
provides
an
inexpensive
path
production
on
laboratory
scale
highly
abundant
side‐stream.
Organic & Biomolecular Chemistry,
Journal Year:
2023,
Volume and Issue:
21(22), P. 4694 - 4701
Published: Jan. 1, 2023
Electrochemical
oxidation
of
pyrazolines
mediated
by
ubiquitous
sodium
chloride
readily
enables
access
to
a
broad
variety
pyrazoles
in
sustainable
manner.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(9)
Published: Nov. 2, 2023
Abstract
Although
electro‐organic
synthesis
is
currently
receiving
renewed
interest
because
of
its
potential
to
enable
sustainability
in
chemical
processes
value‐added
products,
challenges
process
development
persist:
For
reductive
transformations
performed
protic
media,
an
inherent
issue
the
limited
choice
metallic
cathode
materials
that
can
effectively
suppress
parasitic
hydrogen
evolution
reaction
(HER)
while
maintaining
a
high
activity
toward
targeted
reaction.
Current
trends
are
aimed
at
avoiding
previously
used
HER‐suppressing
elements
(Cd,
Hg,
and
Pb)
their
toxicity.
Here,
this
work
reports
rational
design
highly
porous
foam‐type
binary
ternary
electrocatalysts
with
reduced
Pb
content.
Optimized
cathodes
tested
reductions
using
oxime
nitrile
transformation
as
model
relevant
for
fine
chemicals.
Their
electrocatalytic
performance
compared
CuSn7Pb15
bronze
alloy
has
recently
been
endorsed
best
replacement
bare
electrodes.
All
developed
metal
foam
catalysts
outperform
both
benchmark
terms
yield
energetic
efficiency.
Moreover,
post‐electrolysis
analysis
crude
electrolyte
mixture
cathode's
surfaces
through
inductively
coupled
plasma
mass
spectrometry
(ICP‐MS)
scanning
electron
microscopy
(SEM),
respectively,
reveal
catalysts’
elevated
resistance
cathodic
corrosion.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(43), P. 23197 - 23201
Published: Aug. 19, 2021
A
novel
and
very
simple
to
perform
electrochemical
approach
for
the
synthesis
of
several
N-cyanosulfilimines
in
good
excellent
yields
was
established.
This
method
provides
access
biologically
relevant
sulfoximines
by
consecutive
oxidation
using
electro-generated
periodate.
route
can
be
easily
scaled-up
gram
quantities.
The
S,N
coupling
is
carried
out
at
an
inexpensive
carbon
anode
direct
sulfide.
Therefore,
designed
process
atom
economic
represents
a
new
"green
route"
sulfilimines
sulfoximines.
