Angewandte Chemie,
Journal Year:
2023,
Volume and Issue:
136(12)
Published: Dec. 5, 2023
Abstract
London
dispersion
(LD)
interactions
are
the
main
contribution
of
attractive
part
van
der
Waals
potential.
Even
though
LD
effects
driving
force
for
molecular
aggregation
and
recognition,
role
these
omnipresent
in
structure
reactivity
had
been
largely
underappreciated
over
decades.
However,
recent
years
considerable
efforts
have
made
to
thoroughly
study
their
potential
as
a
chemical
design
element
structures
catalysis.
This
was
possible
through
fruitful
interplay
theory
experiment.
review
highlights
results
advances
utilizing
structural
motif
understand
utilize
intra‐
intermolecularly
LD‐stabilized
systems.
Additionally,
we
focus
on
quantification
fundamental
reactions.
European Journal of Inorganic Chemistry,
Journal Year:
2023,
Volume and Issue:
26(12)
Published: Feb. 17, 2023
Abstract
Addition
of
an
excess
ZnMe
2
to
a
mixture
[Ru(PPh
3
)
HCl]
and
IMes
(IMes=1,3‐bis(2,4,6‐trimethylphenyl)imidazolin‐2‐ylidene)
yields
the
bis‐cyclometallated
complex,
[Ru(IMes)“(PPh
]
,
together
with
mono‐cyclometallated,
Ru−Zn
heterobimetallic
complex
[Ru(IMes)′(PPh
(ZnMe)]
.
Treatment
H
PhSiH
or
pinacolborane
previously
reported
H]
1
synthesis
which
has
been
reinvestigated.
Further
studies
small
molecule
reactivity
show
that
adds
give
[Ru(IMes)(PPh
4
whilst
reacts
catecholborane
[Ru(IMes‐Bcat)′(PPh
5
in
(IMes‐Bcat)′
signifies
borylated
NHC
ligand
is
singly‐metallated
onto
Ru.
CO
gives
18‐electron
dicarbonyl
product
[Ru(IMes)”(PPh
)(CO)
6
Compounds
–
have
structurally
characterised.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(38), P. 21027 - 21039
Published: Sept. 13, 2023
The
synthesis
of
phosphino(oxazoline)pyridine-supported
molybdenum(0)
cycloocta-1,5-diene
complexes
is
described.
Exposure
these
to
dihydrogen
in
the
presence
an
arene
resulted
insertion
substrate
into
molybdenum
hydride
bond
and
afforded
corresponding
cyclohexadienyl
hydrides.
For
mono-
disubstituted
arenes,
site
selectivity
for
most
substituted
increases
with
increasing
size
substituent
from
methyl
ethyl,
iso-propyl,
tert-butyl.
In
contrast,
1,3,5-trisubstituted
arenes
underwent
exclusive
selectivity.
Relative
rates
were
determined
by
competition
experiments
established
faster
insertions
electron-rich
arenes.
Introduction
electron-withdrawing
trifluoromethyl
groups
on
decreased
relative
increased
rate
H2
reductive
elimination,
favoring
formation
η6-arene
complex.
Studies
elimination
ligand
enabled
enantioenriched
cyclohexa-1,3-diene.
This
study
provides
new
insights
requirements
catalytic
hydrogenation
a
strategy
selective
reduction.
SSRN Electronic Journal,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 1, 2022
Engineering
unsymmetrical
coordination
is
an
efficient
strategy
for
improving
the
performance
of
carbon
supported
single-atom
catalysts
diverse
applications.
However,
exploration
this
to
prepare
hydrogenation
reaction
still
in
infancy,
especially
quinolines.
Herein,
we
report
a
protein-metal-ion-network
preparation
cobalt
on
hierarchically
porous
(SA-Co/NSPC).
SA-Co/NSPC
features
unsymmetrically
N/S-coordinated
metal
center,
i.e.,
Co1–N3S1.
Moreover,
matrices
possess
ultra-thin
two-dimensional
morphology
and
structures.
catalyst
with
Co1–N3S1
active
site
exhibits
excellent
catalytic
N-heterocycles.
The
DFT
calculation
results
show
that
reveals
significant
electron
redistribution
comparison
Co1–N4,
leading
lower
H*
diffusion
barrier
quinoline
barrier.
combined
unique
structure
high
owns
extraordinary
Angewandte Chemie,
Journal Year:
2022,
Volume and Issue:
135(3)
Published: Nov. 9, 2022
Abstract
Treatment
of
phosphino(imino)pyridine
(PIP)
molybdenum
cyclooctadiene
(COD)
complexes
[(PIP)Mo(COD)]
with
dihydrogen
in
the
presence
benzene
selectively
furnished
cyclohexadienyl
hydrides
[(PIP)MoH(
η
5
‐C
6
H
7
)],
which
are
precatalysts
for
hydrogenation
to
cyclohexane.
)]
arises
from
a
rarely
observed
insertion
into
molybdenum‐hydride
bond,
key
step
molybdenum‐catalyzed
homogeneous
arenes.
The
reaction
toluene
afforded
single
isomer
corresponding
hydride
while
para
‐xylene
predominantly
formed
‐arene
complex
product
being
minor
component.
Addition
carbon
monoxide
cyclohexane‐
d
12
solution
liberated
cyclohexadiene,
providing
experimental
support
higher
kinetic
barrier
subsequent
steps
en
route
cycloalkanes.
Angewandte Chemie,
Journal Year:
2023,
Volume and Issue:
135(10)
Published: Jan. 13, 2023
Abstract
The
selective
hydrogenation
of
benzofurans
in
the
presence
a
heterogeneous
non‐noble
metal
catalyst
is
reported.
developed
optimal
catalytic
material
consists
cobalt‐cobalt
oxide
core–shell
nanoparticles
supported
on
silica,
which
has
been
prepared
by
immobilization
and
pyrolysis
cobalt‐DABCO‐citric
acid
complex
silica
under
argon
at
800
°C.
This
novel
allows
for
simple
functionalized
to
2,3‐dihydrobenzofurans
as
well
related
heterocycles.
versatility
reported
protocol
showcased
reduction
selected
drugs
deuteration
Further,
stability,
recycling,
reusability
Co‐nanocatalyst
are
demonstrated.
Angewandte Chemie,
Journal Year:
2023,
Volume and Issue:
136(12)
Published: Dec. 5, 2023
Abstract
London
dispersion
(LD)
interactions
are
the
main
contribution
of
attractive
part
van
der
Waals
potential.
Even
though
LD
effects
driving
force
for
molecular
aggregation
and
recognition,
role
these
omnipresent
in
structure
reactivity
had
been
largely
underappreciated
over
decades.
However,
recent
years
considerable
efforts
have
made
to
thoroughly
study
their
potential
as
a
chemical
design
element
structures
catalysis.
This
was
possible
through
fruitful
interplay
theory
experiment.
review
highlights
results
advances
utilizing
structural
motif
understand
utilize
intra‐
intermolecularly
LD‐stabilized
systems.
Additionally,
we
focus
on
quantification
fundamental
reactions.
