Chemistry & Chemical Technology,
Год журнала:
2025,
Номер
19(1), С. 34 - 51
Опубликована: Март 25, 2025
Hydrogen
peroxide
(H2O2)
is
a
versatile
oxidant
used
in
various
chemical
syntheses,
including
the
selective
oxidation
of
organic
compounds
and
conversion
pollutants
wastewater.
The
increasing
interest
H2O2
as
“green
oxidant”
largely
due
to
environmental
considerations
assigned
clean
nature
hydrogen
an
because
its
by-product
only
water.
selected
catalytic
processes
sulfide
oxidation,
method
for
production
valuable
chemicals,
well
potential
crude
oil
desulfurization
are
presented
discussed.
Special
attention
paid
Ti-based
systems
these
processes.
Organic & Biomolecular Chemistry,
Год журнала:
2022,
Номер
20(29), С. 5836 - 5844
Опубликована: Янв. 1, 2022
Photochemical
aerobic
synthesis
of
sulfoxides
from
sulfides,
utilizing
air
as
the
oxidant,
2-Me-THF
green
solvent
and
LED
370
nm.
427
nm,
CFL
or
sunlight
irradiation
source.
Application
in
sulforaphane
modafinil.
Organic & Biomolecular Chemistry,
Год журнала:
2022,
Номер
21(2), С. 351 - 358
Опубликована: Ноя. 30, 2022
Cyrene
is
employed
as
the
reaction
medium
in
Mizoroki–Heck
cross-coupling
between
aryl
iodides
with
acrylates,
acrylamides
or
styrene.
Its
application
synthesis
of
piperlotine
A
demonstrated.
ACS Organic & Inorganic Au,
Год журнала:
2022,
Номер
3(2), С. 96 - 103
Опубликована: Дек. 8, 2022
Throughout
the
last
15
years,
there
has
been
increased
research
interest
in
use
of
light
promoting
organic
transformations.
[2
+
2]
Cycloadditions
are
usually
performed
photochemically;
however,
literature
precedent
on
reaction
between
olefins
and
maleimides
is
limited
to
a
handful
examples,
focusing
mainly
N-aliphatic
or
using
metal
catalysts
for
visible-light
driven
reactions
N-aromatic
maleimides.
Herein,
we
identify
differences
reactivity
N-alkyl
N-aryl
For
our
optimized
protocols,
case
maleimides,
with
alkenes
proceeds
under
370
nm
irradiation
absence
an
external
photocatalyst,
leading
products
high
yields.
In
requires
thioxanthone
as
photosensitizer
440
irradiation.
Chemistry - A European Journal,
Год журнала:
2023,
Номер
29(35)
Опубликована: Апрель 4, 2023
The
direct
amide
bond
formation
between
a
carboxylic
acid
and
an
amine
still
constitutes
challenging
reaction
for
both
academia
industry.
We
demonstrate
herein
that
several
pairs
of
amines
(halogen
acceptors)
organohalogen
sources
may
be
used
the
photochemical
amidation
under
either
UVA
or
sunlight
irradiation.
Our
studies
led
to
identification
pyridine-CBr4
as
efficient
agent
perform
synthesis
LED
370
nm
irradiation,
avoiding
super-stoichiometric
quantities.
An
extended
substrate
scope
was
demonstrated,
showing
widely
amino
carboxyl
protecting
groups
are
compatible
with
this
protocol,
while
number
industrially
interesting
products
bioactive
compounds
were
synthesized.
Direct
infusion-high
resolution
mass
spectrometry
suggest
unprecedented
type
activation
mode
upon
involving
generation
symmetric
anhydride,
active
ester
pyridine
N-oxide
mixed
anhydride
hypobromous
acid.
European Journal of Organic Chemistry,
Год журнала:
2023,
Номер
26(24)
Опубликована: Фев. 27, 2023
Abstract
In
recent
years,
the
development
of
light‐mediated
methods
for
synthetic
applications
has
attracted
high
interest,
because
such
constitute
alternative
approaches
production
valuable
chemical
products.
We
study
herein
a
photochemical
protocol
synthesis
Weinreb
amides
and
morpholine
from
carboxylic
acids.
Various
acids
were
directly
coupled
to
N
,
O
‐dimethylhydroxylamine,
upon
irradiation
with
either
LED
370
nm
or
sunlight
in
presence
4‐dimethylaminopyridine
bromotrichloromethane,
providing
moderate
yields.
Similarly,
obtained
satisfactory
yields
under
irradiation.
Thus,
versatile
building
blocks
may
be
efficiently
synthesized
by
approaches,
without
need
coupling
reagents
pre‐activation
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
22(10), С. 2012 - 2020
Опубликована: Янв. 1, 2024
N
-Trifluoromethylthio
sulfoximines
were
oxidized
using
NaOCl·5H
2
O
to
the
corresponding
novel
-trifluoromethylsulfaneylidene
in
high
yields
and
with
excellent
green
metrics.
The
sulfoxide
moiety
is
one
of
the
most
commonly
utilized
groups
in
pharmaceutical
and
industrial
chemistry.
need
for
sustainability
easy
accessibility
to
moieties
deemed
necessary,
due
its
ubiquity
natural
products
potentially
pharmaceutically
active
compounds.
In
this
context,
we
report
herein
a
sustainable,
aerobic
environmentally
friendly
photochemical
protocol
based
on
use
benzothioxathene
imide
as
photocatalyst
selectively
oxidize
sulfides
under
mild
irradiation
(456
nm),
very
low
catalyst
loading
(0.01
mol
%)
water.
addition,
demonstrate
compatibility
our
with
wide
scope
substrates,
latter
was
successfully
applied
synthesis
biologically-active
Sulforaphane
Modafinil.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 3, 2025
Abstract
A
visible
light
mediated
photocatalyst-free
synthesis
of
N
-substituted
2-aminobenzimidazoles
directly
from
o
-phenylenediamines
and
isothiocyanates
is
developed
in
a
one-pot
fashion.
This
reaction
proceeds
through
three
steps:
-substitution
-phenylenediamines,
thiourea
formation
cyclodesulfurization.
method
enables
the
rapid
efficient
structurally
diverse
2-aminobenzimidazoles,
achieving
yields
up
to
92%
across
69
examples.
The
practicality
demonstrated
by
gram-scale
synthesis.
key
advantages
this
include
use
less
toxic
solvent
aqueous
media,
elimination
photocatalyst,
simple,
practical
setup
(one-pot,
open-flask,
ambient
temperature).
Mechanistic
insights
are
gathered
control
experiments,
including
on/off
cycles
radical
inhibition
studies.
results
indicate
that
involves
with
pathway
light.
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(3)
Опубликована: Фев. 5, 2025
ABSTRACT
The
oxidative
transformation
of
sulfides
to
sulfoxides
over
magnetic
green
catalysts
is
one
the
most
important
applications
in
pharmaceuticals.
In
this
report,
we
demonstrate
step‐by‐step
fabrication
and
synthesis
CoFe
2
O
4
,
CuFe
Fe
3
nanocomposite
modified
with
orange
peel
extract
complexes
as
advanced
high‐performance
materials.
One
goals
project
was
use
phenolic
acid
phytochemicals
catalytic
process.
newly
synthesized
nanocomposites
were
characterized
by
several
analytical
methods.
Utilizing
Box–Behnken
experimental
design
response
surface
methodology
(RSM),
reaction
parameters
such
amount
catalyst,
hydrogen
peroxide,
duration
improved.
Furthermore,
without
experiencing
a
discernible
loss
reactivity
sulfide
oxidation
reaction,
effortlessly
magnetically
retrieved
may
be
employed
repeatedly.
