Catalysts,
Год журнала:
2022,
Номер
12(12), С. 1667 - 1667
Опубликована: Дек. 18, 2022
Formaldehyde
is
an
important
downstream
chemical
of
syngas.
Furniture
and
household
products
synthesized
from
formaldehyde
will
slowly
decompose
release
again
during
use,
which
seriously
affects
indoor
air
quality.
In
order
to
solve
the
pollution
problem,
this
paper
took
catalytic
oxidation
as
research
object;
prepared
a
series
low-cost,
acid-treated
manganese
dioxide
nanorod
catalysts;
investigated
effect
acid-treatment
conditions
on
catalysts’
activity.
It
was
found
that
MnNR-0.3ac-6h
catalyst
with
0.3
mol/L
sulfuric
acid
for
6
h
had
best
The
conversion
rate
reached
98%
at
150
°C
90%
25
room
temperature.
During
reaction
time
144
h,
about
90%,
maintained
high
treatment
could
increase
number
oxygen
vacancies
surface
catalysts
promote
production
reactive
species.
amount
species
13%
higher
than
without
treatment.
Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(5), С. 1301 - 1308
Опубликована: Янв. 1, 2023
The
DFT
study
suggests
that
the
polarization
of
CC
bonds
is
not
controlling
factor
outer-sphere
bifunctional
bond
hydrogenations.
Instead,
“push–pull”
type
π-conjugative
effect
can
contribute
to
these
reactions.
Heliyon,
Год журнала:
2023,
Номер
9(6), С. e17391 - e17391
Опубликована: Июнь 1, 2023
We
designed
and
constructed
a
whole-cell
biosensor
capable
of
detecting
the
presence
quantity
carbon
monoxide
(CO)
using
CO
regulatory
transcription
factor.
This
utilizes
CooA,
CO-sensing
regulator
that
activates
expression
dehydrogenase
(CODH),
to
detect
respond
by
triggering
GUS
reporter
protein
(β-glucuronidase).
The
is
expressed
from
CO-induced
CooA-binding
promoter
(PcooF)
CooA
enables
effective
colorimetric
detection
CO.
An
Escherichia
coli
strain
used
validate
showed
growth
activity
under
anaerobic
conditions;
this
study
inert
gas
(Ar)
create
conditions.
pBRCO
could
successfully
in
headspace.
Moreover,
GUS-specific
according
strength
as
partial
pressure
followed
Michaelis-Menten
kinetics
(R2
=
0.98).
It
was
confirmed
increased
linearly
up
30.39
kPa
0.98),
thus,
quantitative
analysis
concentration
(i.e.,
pressure)
possible.
The Journal of Organic Chemistry,
Год журнала:
2022,
Номер
87(15), С. 10390 - 10397
Опубликована: Июль 26, 2022
An
efficient
and
direct
carbonylation
of
aminoquinoline
benzamides
has
been
developed
using
abundant
inexpensive
Ni(OAc)2·4H2O
as
the
catalyst
carbon
monoxide
a
cost-efficient
C1
building
block.
This
process
features
good
functional-group
tolerance
can
be
conducted
on
gram
scale.
The
directing
group
easily
removed
under
mild
conditions.
Biocatalysis and Biotransformation,
Год журнала:
2022,
Номер
41(6), С. 403 - 420
Опубликована: Авг. 9, 2022
Biocatalysts
can
accelerate
the
catalysis
of
a
chemical
reaction
that
is
difficult
to
synthesize
with
typical
methods.
The
global
enzyme
market
size
predicted
expand
at
CAGR
6.5%
from
2021
2028.
Enzymatic
reactions
are
highly
chemo,
regio,
and
stereoselective
produce
various
fine
chemicals
such
as
drugs,
agrochemicals,
fragrance
molecules.
Peroxidases
(PO)
(EC
1.11.1.x)
large
class
enzymes
play
an
important
role
in
biological
processes.
Chloroperoxidase
(CPO,
EC
1.1.1.10)
versatile
fungal
haem-thiolate
protein
useful
asymmetric
synthesis
chiral
building
blocks
has
number
CPO's
main
chlorination,
although
it
also
catalyses
haem
PO,
catalase
(CAT),
similar
cytochrome
P450.
However,
CPO
performs
both
oxidation
stereo-specific
halogenation
vanadium
POs
produced
by
Caldariomyces
fumago,
Curvularia
inaequalis,
respectively,
capable
halogenating
flavanones,
naringenin,
hesperetin,
C-6
C-8
presence
either
Cl−
or
Br−.
In
this
review,
we
discussed
applications
including
epoxides,
thymol,
nitriles,
Aza-Achmatowicz
reaction,
biomedical
cancer
biosensors.
light
these
novel
features,
have
provided
detailed
review
CPOs
their
transformations
industrial
relevance.
Catalysts,
Год журнала:
2022,
Номер
12(12), С. 1667 - 1667
Опубликована: Дек. 18, 2022
Formaldehyde
is
an
important
downstream
chemical
of
syngas.
Furniture
and
household
products
synthesized
from
formaldehyde
will
slowly
decompose
release
again
during
use,
which
seriously
affects
indoor
air
quality.
In
order
to
solve
the
pollution
problem,
this
paper
took
catalytic
oxidation
as
research
object;
prepared
a
series
low-cost,
acid-treated
manganese
dioxide
nanorod
catalysts;
investigated
effect
acid-treatment
conditions
on
catalysts’
activity.
It
was
found
that
MnNR-0.3ac-6h
catalyst
with
0.3
mol/L
sulfuric
acid
for
6
h
had
best
The
conversion
rate
reached
98%
at
150
°C
90%
25
room
temperature.
During
reaction
time
144
h,
about
90%,
maintained
high
treatment
could
increase
number
oxygen
vacancies
surface
catalysts
promote
production
reactive
species.
amount
species
13%
higher
than
without
treatment.
