Photoredox/Nickel Dual-Catalytic Asymmetric Silylarylation of Alkenes
Qiyang Yuan,
No information about this author
Zhengrong Deng,
No information about this author
Yi Wan
No information about this author
et al.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
27(2), P. 680 - 685
Published: Jan. 6, 2025
The
efficient
construction
of
chiral
aryl-containing
organosilicon
frameworks
via
catalytic
enantioselective
three-component
silylarylation
alkenes
remains
a
great
challenge.
Herein,
photoredox/nickel
dual-catalytic
asymmetric
protocol
has
been
disclosed
by
using
biimidazoline
(BiIM)
as
the
ligand,
silylboranes
silyl
radical
precursors,
aryl
bromides
coupling
partners,
and
morpholine
promoter.
Remarkably,
reaction
features
mild
green
conditions,
high
efficiency,
excellent
enantioselectivity,
enabling
facile
synthesis
valuable
tropic
acid
sila-isoflavanone
structures.
Language: Английский
Difunctionalization of bicyclo[1.1.0]butanes enabled by merging C−C cleavage and ruthenium-catalysed remote C−H activation
Shan Chen,
No information about this author
Zhimin Xu,
No information about this author
Binbin Yuan
No information about this author
et al.
Nature Synthesis,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Language: Английский
Ruthenium(II)-Catalyzed Remote C–H Alkylation of Arenes Using Diverse N-Directing Groups through Aziridine Ring Opening
Hongyan Lan,
No information about this author
Yingzhen Liu,
No information about this author
Lutz Ackermann
No information about this author
et al.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 12, 2024
An
efficient
approach
for
the
remote
C-H
alkylation
of
arenes,
employing
a
variety
N-directing
groups
is
described.
This
method
facilitates
straightforward
synthesis
valuable
phenylethylamine
derivatives
by
exclusively
cleaving
benzylic
C-N
bond
in
aziridines.
Furthermore,
these
products
can
easily
remove
protecting
groups,
resulting
meta-substituted
compounds,
such
as
amines
and
ketones,
which
hold
significance
synthetic
chemistry.
Language: Английский
Recent developments in difunctionalization of unsaturated hydrocarbons with organosilicon reagents
Jiawei Mao,
No information about this author
Ming Chen,
No information about this author
Yao Zhong
No information about this author
et al.
Organic & Biomolecular Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 29, 2024
Organosilicon
compounds
have
attracted
considerable
attention
because
of
their
special
biological
activities.
Direct
difunctionalization
unsaturated
hydrocarbons
with
organosilicon
reagents
for
the
efficient
construction
synthetically
valuable
silicon-functionalized
are
featured
a
high
step
and
atom
economy,
which
could
form
carbon-silicon/carbon-carbon
bonds
or
carbon-silicon/carbon-hetero
in
one
step.
This
review
summarizes
recent
advances
on
this
topic
based
different
along
typical
examples
mechanisms.
Language: Английский
Nickel‐Cobalt Bimetallic Strategy Enables Regioselective C8–H Alkylation of Polyaromatics with Inert Alkyl Chlorides
Wanbin Song,
No information about this author
Ximeng Shi,
No information about this author
Wen Li
No information about this author
et al.
Chinese Journal of Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 11, 2025
Comprehensive
Summary
A
regioselective
C8−H
alkylation
of
polyaromatics
exampled
with
inert
alkyl
chloride
is
reported.
The
reaction
proceeds
via
the
synergistic
participation
inexpensive
transition
metals
nickel
and
cobalt.
This
approach
enables
coupling
various
substituted
polyaromatic
rings
a
broad
range
primary
secondary
chlorides.
Further
synthetic
applications
provide
series
simple
conversions
to
useful
building
blocks,
suggesting
its
potency
in
late‐stage
functionalization
complex
molecules.
Mechanistic
investigation
illustrates
that
goes
through
radical
process
an
unusual
Ni(II)→Ni(III)→Ni(I)
cycle
being
responsible
for
rate‐determining
C−H
insertion
radicals,
which
are
generated
by
homolysis
chloroalkane
2‐electrons
oxidative
addition
Co(I).
Language: Английский
Silyl Radical‐Participated Silylfunctionalization of Alkenes and Alkynes
European Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 1, 2024
Abstract
Alkenes
and
alkynes
are
inexpensive
readily
available
basic
chemicals.
Silyl
radical‐participated
silylation
of
alkenes
provides
a
powerful
tool
for
the
direct
construction
organosilicon
compounds.
Compared
to
hydrosilylation
reactions,
silylfunctionalization
reactions
more
attractive
advantageous
in
building
diverse
compounds,
which
has
led
their
becoming
research
focus
organic
synthesis.
Herein,
we
provide
comprehensive
overview
recent
advances
silyl
alkynes.
Language: Английский
Cu(I)‐Catalyzed Silylation and Germylation of Azauracils
Chemistry - A European Journal,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
The
current
study
demonstrates
a
Cu(I)
catalyzed
direct
C(sp
Language: Английский
Observation of Ferroelectricity in Carbapenem Intermediates Enables Reactive Oxygen Species Generation by Ultrasound
Xian‐Jiang Song,
No information about this author
Wenbo Sun,
No information about this author
Long-Xing Zhou
No information about this author
et al.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(47), P. 32519 - 32528
Published: Nov. 15, 2024
Organic
ferroelectrics
show
great
applications
in
the
fields
of
biomedicine,
including
disease
treatment,
biosensors,
and
tissue
engineering.
Organosilicon
pharmaceutical
intermediates
generally
include
chiral
centers
have
satisfying
biosafety,
biocompatibility,
or
even
biodegradability,
which
provide
versatile
platforms
for
design
ferroelectricity.
However,
their
academic
values
ferroelectricity
long
been
overlooked.
Here,
we
demonstrated
ferroelectric
properties
4-acetoxy-azacyclic
butanone
(4-AA),
a
key
synthetic
organosilicon-based
intermediate
carbapenem
drugs.
This
compound
undergoes
222F2-type
ferroelectric-ferroelastic
phase
transition
at
326
K.
As
an
organic
piezoelectric
material,
4-AA
can
produce
reactive
oxygen
species
when
subjected
to
ultrasonic
vibrations.
Combined
with
its
desirable
this
material
may
contribute
antimicrobial
wound
healing,
tumor
etc.
work
will
inspiration
discovery
multifunctional
biomedical
materials
as
well
related
application
prospects.
Language: Английский
Visible‐Light‐Initiated Uranyl‐Catalyzed Hydrosilylation and Hydrosulfonylation of Alkenes and Alkynes
Xingxing Gong,
No information about this author
Qianyi Zhao,
No information about this author
Congqing Zhu
No information about this author
et al.
Advanced Synthesis & Catalysis,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 27, 2024
Abstract
This
study
investigates
the
visible‐light‐initiated
uranyl(VI)‐catalyzed
activation
of
Si−H
bonds
through
direct
hydrogen
atom
transfer,
which
facilitates
formation
silyl
radicals
from
silanes.
The
radical
can
abstract
a
chlorine
sulfonyl
chloride,
leading
to
generation
radicals.
These
and
could
react
with
alkenes
alkynes,
achieving
first
example
uranyl‐catalyzed
hydrosilylation
hydrosulfonylation
unsaturated
C−C
bonds.
method
features
mild
reaction
conditions
broad
substrate
scope,
exhibits
exceptional
functional‐group
tolerance.
Consequently,
it
is
suitable
for
late‐stage
functionalization
drug
derivatives.
Language: Английский
Three-component tandem remote C-H functionalization of naphthalenes by ruthenium catalysis: Modular and concise synthesis of multifunctional naphthalenes
Mao‐Gui Huang,
No information about this author
Yue-Liu-Ting Fu,
No information about this author
Jia‐Wei Li
No information about this author
et al.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 12, 2024
A
versatile
multi-component
strategy
for
synthesizing
multi-functional
naphthalenes
via
ruthenium-catalyzed
tandem
C5–H
functionalization
from
readily
available
naphthalene,
olefin
and
alkyl
bromide
compounds
is
disclosed.
Language: Английский