Organic Process Research & Development,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 7, 2024
As
the
field
of
nonprecious
metal
catalysis
continues
to
expand,
we
pursue
a
review
series
covering
selected
transformations
in
this
area
over
short
time
interval
highlight
practical
advancements.
We
seek
raise
awareness
both
current
art
and
need
continue
development
toward
broader
applications
earth-abundant
metals
chemical
pharmaceutical
industries.
Organometallics,
Journal Year:
2024,
Volume and Issue:
43(20), P. 2574 - 2580
Published: Aug. 10, 2024
The
catalytic
activity
of
an
NHC-pyridonate-supported
nickel(0)
complex
for
Suzuki-Miyaura
coupling
aryl
halides
was
evaluated.
Product
formation
observed
in
the
absence
a
basic
additive.
However,
low
turnover
numbers
resulted
from
competitive
catalyst
deactivation.
nature
deactivation-dimerization
nickel(II)
intermediate-was
elucidated
through
combination
NMR
monitoring,
direct
synthesis,
and
X-ray
diffraction.
Lewis
acidic
additives
were
evaluated
with
goal
improving
stability
intermediate
but
failed
to
enable
turnover.
Taken
together,
these
findings
highlight
both
promise
pitfalls
associated
incorporating
secondary-sphere
groups
cooperative
catalysis.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
unknown, P. 17535 - 17546
Published: Nov. 13, 2024
The
synthetic
innovations
in
generating
β-arylethylamines
have
the
potential
to
propel
advancements
drug
discovery,
as
are
common
structural
motifs
various
bioactive
compounds
and
drugs.
Here,
we
report
an
efficient
Pd
(II)-catalyzed
method
for
selective
β-C(sp3)-H
arylation
of
aliphatic
amines
construct
β-arylethylamine
frameworks.
With
easy
installation
removal
nitroso
directing
group
on
amine
nitrogen,
this
Pd-catalyzed
enables
(hetero)arylation
bonds
scaffolds
produce
tolerates
a
variety
functional
groups
both
coupling
partners.
It
offers
approach
direct
syntheses
drugs
from
native
amines,
thereby
overcoming
inherent
limitations
previously
known
methods.
This
identified
Pd-catalyst-system
features
low
catalyst
loading
C–H
functionalization
high
reaction
rate,
originating
pyridone-amide-ester
ligand
that
increases
activity
while
protecting
all
active
species
forming
inactive
complexes.
Experimental
computational
studies
disclose
valuable
effect
partially
results
pendant
ester
participates
several
steps
C(sp3)-H
activation
process
favors
Pd-catalytic
cycle.
Organic Process Research & Development,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 7, 2024
As
the
field
of
nonprecious
metal
catalysis
continues
to
expand,
we
pursue
a
review
series
covering
selected
transformations
in
this
area
over
short
time
interval
highlight
practical
advancements.
We
seek
raise
awareness
both
current
art
and
need
continue
development
toward
broader
applications
earth-abundant
metals
chemical
pharmaceutical
industries.