Phosphorus, sulfur, and silicon and the related elements,
Journal Year:
2024,
Volume and Issue:
199(4), P. 308 - 315
Published: April 2, 2024
Imidazolium
(IMZ)-based
ionic
liquids
(ILs)
with
various
counter
ions
were
investigated
as
potential
corrosion
inhibitors.
Furthermore,
parameters
such
bond
lengths,
angles,
and
dihedral
bonds
to
demonstrate
the
adsorption
sites
of
molecules.
Moreover,
in
order
compare
efficiency
inhibitors,
other
energy
gap,
hardness,
LUMO,
HOMO
investigated.
The
LUMO
values
increased
from
−4.370
−0.106
eV
−4.959
−0.156
eV,
respectively,
by
changing
F−
I−.
softness
IMZ
base
changed
0.469
0.417
increasing
radius
halide
ion.
trend
band
gap
value
going
I−
changes
4.264
4.797
eV.
total
electron
density
was
computed
show
based
on
density.
According
molecular
reactivity
results,
inhibitory
inhibitors
following
order:
BMI-F
>
BMI-Cl
BMI-Br
BMI-I.
Investigating
IMZ-based
ILs
counterions
evaluate
inhibition
profile
molecules
provides
useful
insights
into
computational
protocols
for
study
International Journal of Electrochemical Science,
Journal Year:
2023,
Volume and Issue:
18(12), P. 100316 - 100316
Published: Aug. 10, 2023
In
the
present
study,
photocatalytic
characteristics
of
CuO@TiO2
nanocomposite
for
decolorization
Acid
Yellow
36
(AY36)
are
investigated.
FE-SEM,
XRD,
EDS,
and
XPS
structural
studies
nanostructured
photocatalysts
showed
that
CuO
TiO2
in
(3:5)
were
successfully
incorporated
formed
heterostructure.
Results
optical
investigations
gap
energies
pure
CuO,
TiO2,
(1:5),
(3:5),
(5:5),
(6:5)
1.88,
3.05,
2.94,
2.81,
2.77,
2.71
eV,
respectively.
According
to
findings,
is
a
potential
candidate
visible
light-consumed
photocatalyst.
Electrochemical
analyses
exhibited
charge
transfer
resistance
was
significantly
reduced
samples,
indicating
an
effective
separation
photo-excited
electron-hole
pairs.
Photocatalytic
reflected
fast
degradation
rate
presence
nanocomposites
compared
TiO2.
The
results
20,
30,
50,
100,
200
mg/L
AY36
completely
eliminated
after
35,
45,
65,
110,
185
minutes
exposure
simulated
sunlight,
A
effectively
used
photocatalytically
decolorize
from
actual
textile
wastewater
performance
material
investigated
deionized
water
industrial
wastewater.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
26(4), P. 922 - 927
Published: Jan. 24, 2024
A
straightforward
methodology
for
the
enantioselective
preparation
of
axially
chiral
2-naphthylpyrroles
has
been
developed.
This
protocol
is
based
on
a
CuI/Fesulphos-catalyzed
highly
1,3-dipolar
cycloaddition
an
azomethine
ylide
followed
by
pyrrolidine
alkylation
and
to
pyrrole
oxidation.
The
mild
conditions
employed
in
DDQ/blue
light-mediated
aromatization
process
facilitate
effective
central-to-axial
chirality
transfer
affording
corresponding
pyrroles
with
high
atroposelectivity.
Chemical Engineering & Technology,
Journal Year:
2023,
Volume and Issue:
46(10), P. 2034 - 2045
Published: July 6, 2023
Abstract
Two
different
types
of
hollow‐fiber
membrane
contactors
were
used
for
CO
2
separation
from
the
gas
stream
with
monoethanolamine
(MEA)
absorbent
and
numerically
investigated.
After
model
validation
experimental
data,
removal
efficiency,
MEA
concentration,
pressure
drop
variation
examined
under
conditions
by
some
effective
parameters
such
as
velocity,
absorption
solution
porosity,
tortuosity.
Membrane
tortuosity
porosity
enhancement
led
to
light
decrease
increase
in
respectively,
but
velocity
significantly
reduced
efficiency.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(4), P. 864 - 864
Published: Feb. 15, 2024
Phytopathogenic
fungi
cause
plant
diseases
and
economic
losses
in
agriculture.
To
efficiently
control
pathogen
infections,
a
total
of
19
spirotryprostatin
A
derivatives
26
spirooxindole
were
designed,
synthesized,
tested
for
their
antifungal
activity
against
ten
pathogens.
Additionally,
the
intermediates
investigated,
including
proposing
mechanism
diastereoselectivity
performing
amplification
experiments.
The
bioassay
results
demonstrated
that
possess
good
broad-spectrum
activities.
Compound
4d
exhibited
excellent
vitro,
equal
to
or
higher
than
positive
ketoconazole,
Helminthosporium
maydis,
Trichothecium
roseum,
Botrytis
cinerea,
Colletotrichum
gloeosporioides,
Fusarium
graminearum,
Alternaria
brassicae,
alternate,
solan
(MICs:
8–32
µg/mL).
4k
also
displayed
remarkable
eight
other
phytopathogenic
fungi,
oxysporium
f.
sp.
niveum
Mycosphaerella
melonis
preliminary
structure–activity
relationships
(SARs)
further
discussed.
Moreover,
molecular
docking
studies
revealed
anchored
binding
site
succinate
dehydrogenase
(SDH).
Therefore,
these
compounds
showed
potential
as
natural
compound-based
chiral
fungicides
hold
promise
candidates
enhancements
terms
structure
properties.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(7), P. 1655 - 1655
Published: April 7, 2024
Spirotryprostatin
alkaloids,
a
class
of
alkaloids
with
unique
spirocyclic
indoledionepiperazine
structure,
were
first
extracted
from
the
fermentation
broth
Aspergillus
fumigatus
and
have
garnered
significant
attention
in
fields
biology
pharmacology.
The
investigation
into
pharmacological
potential
this
has
unveiled
promising
applications
drug
discovery
development.
Notably,
certain
spirotryprostatin
demonstrated
remarkable
anti-cancer
activity,
positioning
them
as
candidates
for
anti-tumor
In
recent
years,
organic
synthetic
chemists
dedicated
efforts
to
devise
efficient
viable
strategies
total
synthesis
aiming
meet
demands
within
pharmaceutical
domain.
construction
spiro-C
atom
scaffold
chirality
control
at
spiro
atomic
center
emerge
pivotal
aspects
these
compounds.
This
review
categorically
delineates
based
on
formation
mechanism
atom.
Cyclic
peptides
are
highly
valued
synthetic
targets
in
organic
and
medicinal
chemistry.
The
development
of
new
methodologies
for
peptide
macrocyclization,
different
from
classical
lactamization,
is
essential
the
progress
field.
Herein,
we
report
an
efficient
diastereoselective
macrocyclization
strategy
synthesis
cyclic
using
1,3-dipolar
cycloaddition
azomethine
ylides.
Linear
precursors
length
bearing
diverse
amino
acids
have
shown
to
be
compatible
with
this
method
(26
examples),
giving
good
yields
almost
complete
diastereoselectivity.
DFT
calculations
suggest
a
stepwise
mechanism
which
Cu
plays
key
role
reagents
preorganization.
Chemistry - A European Journal,
Journal Year:
2023,
Volume and Issue:
29(66)
Published: Sept. 11, 2023
The
stereodivergent
asymmetric
synthesis
of
2,5-trans/cis
pyrrolidines
by
1,3-dipolar
cycloaddition
using
two
different
types
activated
alkenes
is
described.
When
ylidene-isoxazolones
were
employed
as
dipolarophiles,
the
Ag/(S,Sp
)-iPr-FcPHOX-catalyzed
[3+2]
imino
lactones
proceeded
with
2,5-trans
selectivity.
Subsequent
decarboxylation
isoxazolone
rings
produced
stereoretention.
In
reaction
acyclic
enones
alkenes,
Ag/(R,Sp
)-ThioClickFerrophos
complex-catalyzed
afforded
2,5-cis
substituted
in
high
yields
and
enantioselectivities.
Therefore,
these
methods
can
be
considered
a
formal
2,5-cis/trans
pyrrolidines.