Iron-Catalyzed Transfer Hydroalumination of Alkynes
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 22, 2025
The
limited
availability
of
efficient
synthetic
methods
for
organoaluminum
compounds
constrains
their
broader
applications.
transfer
hydroalumination
alkynes
emerges
as
a
promising
strategy
synthesizing
alkenylaluminum
species;
however,
achieving
precise
control
the
selectivity
remains
formidable
challenge.
Herein,
we
disclose
highly
chemo-,
regio-,
and
stereoselective
alkynes,
catalyzed
by
well-defined
iron
complexes,
utilizing
commercially
available
AlEt3
reagent.
regioselectivity
reaction
involving
terminal
can
be
effectively
modulated
changing
2,9-aryl
substituents
on
ligands
with
observation
cis-α-selectivity
not
previously
documented
in
literature.
Furthermore,
demonstrate
unprecedented
cis-β-selective
simple
unsymmetrical
internal
alkynes.
This
work
only
broadens
scope
reactions
but
also
enhances
methodologies
diversity
compounds,
highlighting
significant
potential
catalysts
development
organometallic
reagents.
Язык: Английский
Harnessing spin effects for heterogeneous single-atom spin catalysis
National Science Review,
Год журнала:
2024,
Номер
11(9)
Опубликована: Июнь 22, 2024
This
perspective
explores
detailed
structural
design
and
strategies
for
spin
regulation
in
single-atom
catalysis,
enabling
unparalleled
efficiency
chemical
transformations
through
the
harnessing
of
effects
combined
with
atomic
precision
active
sites.
Язык: Английский
Spin-state effect on the efficiency of a post-synthetic modification reaction on a spin crossover complex
Communications Chemistry,
Год журнала:
2025,
Номер
8(1)
Опубликована: Фев. 12, 2025
Язык: Английский
The Design of Spin Catalysts: Breakthroughs toward Efficient Energy Conversion
ChemElectroChem,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 30, 2025
In
energy
conversion
technologies,
the
electron
spin
effect
in
catalysts
plays
a
crucial
role
overcoming
spin‐forbidden
reactions,
offering
novel
approach
to
overcome
performance
bottlenecks
of
catalysts.
Recently,
with
breakthroughs
magnetic
field–enhanced
catalysis
and
theoretical
predictions,
significant
progress
has
been
made
design
development
this
concept,
several
attractive
inspiring
catalyst
strategies
reported
recently,
particularly
precise
modulation
states/spin
interactions
at
catalytic
sites
through
coordination
modulation,
spin‐pinning
effect,
chirality
induction,
radical
adsorption,
are
outlined.
The
concept
then
explores
advantages
these
enhancing
activity/selectivity,
investigating
selectivity
reaction
pathways,
expanding
systems.
Finally,
proposes
future
directions
for
technologies.
Язык: Английский
Hydrosilylation of Arynes with Silanes and Silicon‐based Polymer
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(47)
Опубликована: Июнь 13, 2024
Abstract
Benzyne
derived
from
hexadehydrogenated
Diels
Alder
(HDDA)
reactions
was
found
to
be
an
efficient
hydrosilylation
acceptors.
Various
silanes
can
react
smoothly
with
HDDA‐derived
benzyne
give
the
arylation
products.
Lewis
acid
such
as
boron
trifluoride
etherate
accelerate
these
reactions.
Polyhydromethylsiloxane
(PHMS),
a
widely
used
organosilicon
polymer,
also
successfully
modified
using
our
method.
About
5
%
of
Si−H
bonds
in
polymer
were
inserted
by
benzynes,
giving
functional
PHMS
much
more
solubility
methanol
and
blue‐emitting
fluorescence
behavior.
Mechanism
research
shows
that
insertion
into
bond
probably
undergoes
synergistic
pathway,
which
is
quite
different
traditional
radical‐initiated
or
transition‐metal‐catalyzed
hydrosilylation.
Язык: Английский