The Journal of Organic Chemistry,
Год журнала:
2023,
Номер
88(4), С. 2245 - 2259
Опубликована: Фев. 8, 2023
Catalytic
reduction
reactions
using
methanol
as
a
transfer
hydrogenating
agent
is
gaining
significant
attention
because
this
simple
alcohol
inexpensive
and
produced
on
bulk
scale.
Herein,
we
report
the
catalytic
utilization
of
hydrogen
source
for
different
functional
organic
compounds
such
nitroarenes,
olefins,
carbonyl
compounds.
The
key
to
success
transformation
use
commercially
available
Pt/C
catalyst,
which
enabled
hydrogenation
series
functionalized
nitroarenes-to-anilines,
alkenes-to-alkanes,
aldehydes-to-alcohols
both
solvent
donor.
practicability
Pt-based
protocol
showcased
by
demonstrating
catalyst
recycling
reusability
well
reaction
upscaling.
In
addition,
system
was
also
adaptable
N-methylation
N-alkylation
anilines
via
borrowing
process.
This
work
provides
flexible
approach
prepare
variety
value-added
products
from
readily
methanol,
Pt/C,
other
starting
materials.
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(4), С. 2072 - 2081
Опубликована: Янв. 17, 2024
Coordinatively
unsaturated
complexes
are
interesting
from
a
fundamental
level
for
their
formally
empty
coordination
site
and,
in
particular,
catalytic
perspective
as
they
provide
opportunities
substrate
binding
and
transformation.
Here,
we
describe
the
synthesis
of
novel
underligated
ruthenium
complex
[Ru(cym)(N,N')]
Green Chemistry,
Год журнала:
2022,
Номер
24(6), С. 2542 - 2556
Опубликована: Янв. 1, 2022
An
air-stable,
recyclable,
and
sustainable
copper
catalyst
was
efficiently
utilized
for
the
aerobic
oxidation
of
biomass
model
compound
vanillyl
alcohol
to
important
aroma
vanillin
under
green
conditions.
Base
metal
catalyzed
transfer
hydrogenation
reactions
using
methanol
is
highly
challenging.
Employing
a
single
N-heterocyclic
carbene
(NHC)-based
pincer
(CNC)MnI
complex,
chemoselective
and
double
of
α,
β-unsaturated
ketones
to
saturated
or
alcohols
by
utilizing
as
the
hydrogen
source
disclosed.
The
protocol
was
tolerant
towards
selective
C=C
C=O
bonds
in
presence
several
other
reducible
functional
groups
led
synthesis
biologically
relevant
molecules
natural
products.
Notably,
this
first
report
Mn-catalyzed
carbonyl
with
methanol.
Several
control
experiments,
kinetic
studies,
Hammett
density
theory
(DFT)
calculations
were
carried
out
understand
mechanistic
details
catalytic
process.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(16), С. 6206 - 6219
Опубликована: Апрель 9, 2024
The
present
study
addresses
the
challenges
in
catalytic
transfer
hydrogenation
using
methanol/ethanol
for
converting
biomass-derived
furanic
aldehydes
to
furfuryl
alcohols.
introduction
of
air-stable
Ru(II)-para-cymene
catalysts
with
imidazole-based
metal–ligand
cooperativity
represents
a
significant
advancement.
Spectroscopic,
situ
monitoring,
labeling,
and
DFT
investigations
reveal
mechanistic
details,
highlighting
role
Ru–H
generation
through
dehydrogenation
Ru(II)-alkoxide
intermediates.
Hydride
proton
transfers
are
facilitated
by
interconvertible
coordination
mode
imidazole
Ru(II)–para-cymene,
which
is
crucial
maintaining
catalyst's
efficiency
selectivity.
Notably,
pKa
N–H
coordinated
significantly
influences
reactivity,
following
specific
order
depending
on
attached
heterocycle:
>
pyridine
thiazole.
This
correlates
well
computed
activation
barrier
generation.
catalyst
exhibits
ease
synthesis,
stability
air
moisture,
use
renewable
hydrogen
sources,
excellent
selectivity
aldehydes,
applicability
various
potential
large-scale
processes.
These
features
collectively
contribute
economic
sustainable
nature
both
protocol,
providing
valuable
contribution
field
hydrogenation.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 30, 2024
Abstract
Graphdiyne
(GDY)
is
a
2D
carbon
allotrope
that
has
become
increasingly
prevalent
among
the
family
of
materials.
GDY
advantages
high
specific
surface
area
and
unique
sp
‐
2
‐hybridized
atom
networks,
endowed
with
naturally
adjustable
bandgap,
uniformly
nanoporous
structure,
rapid
carrier
mobility
activated
by
inhomogeneous
π
orbitals,
accessible
on/off
rations.
These
advantages,
coupled
direct
binding
ability
metal
atoms
resulting
from
‐hybridization,
enable
to
be
applied
across
various
research
fields,
especially
as
substrate
support
further
improve
performances
metals
compounds.
Though
many
studies
have
considered
applications
GDY‐supported
compounds,
comprehensive
introduction
synthesis
deficient.
Nonetheless,
discussion
considering
these
diverse
essential
attract
attention
researchers
promote
development
new
perspectives.
In
this
review,
basic
understanding
thorough
compounds
are
presented.
The
review
considers
nanoparticles,
nanoclusters,
dual
single
atoms,
concurrently
catalogues
in
application
domains.
Moreover,
future
challenges
potentials
materials
discussed
provide
different
perspectives
ideas.
Organic Letters,
Год журнала:
2022,
Номер
24(50), С. 9179 - 9183
Опубликована: Ноя. 22, 2022
Herein
we
report
efficient
catalytic
hydrosilylations
of
nitroarenes
to
form
the
corresponding
aromatic
amines
using
a
well-defined
manganese(II)-NNO
pincer
complex
with
low
catalyst
loading
(1
mol
%)
under
solvent-free
conditions.
This
base-metal-catalyzed
hydrosilylation
is
an
easy
and
sustainable
alternative
classical
hydrogenation.
A
large
variety
bearing
various
functionalities
were
selectively
transformed
into
in
good
yields.
The
potential
utility
present
protocol
was
demonstrated
by
preparation
commercial
drug
molecules.
The Journal of Organic Chemistry,
Год журнала:
2022,
Номер
87(19), С. 13259 - 13269
Опубликована: Сен. 12, 2022
Investigation
of
a
variety
Lewis
acids
for
the
hydroboration-hydrolysis
(reduction)
ketones
with
amine-boranes
has
revealed
that
catalytic
(10
mol
%)
titanium
tetrachloride
(TiCl4)
in
diethyl
ether
at
room
temperature
immensely
accelerates
reaction
ammonia
borane.
The
product
alcohols
are
produced
good
to
excellent
yields
within
30
min,
even
which
typically
requires
24
h
or
longer
reduce
under
uncatalyzed
conditions.
Several
potentially
reactive
functionalities
tolerated,
and
substituted
cycloalkanones
reduced
diastereoselectively
thermodynamic
product.
A
deuterium
labeling
study
11B
NMR
analysis
have
been
performed
verify
proposed
hydroboration
mechanism.
Catalysis Science & Technology,
Год журнала:
2023,
Номер
13(18), С. 5422 - 5434
Опубликована: Янв. 1, 2023
Three
new
copper(
ii
)
complexes
were
synthesized
and
successfully
utilized
as
effective
catalysts
for
the
selective
aerobic
oxidation
of
biomass
derived
veratryl
alcohol
to
veratraldehyde
in
water
a
green
sustainable
reaction
medium.
