Angewandte Chemie,
Год журнала:
2023,
Номер
136(9)
Опубликована: Ноя. 14, 2023
Abstract
Visible
light‐induced
Pd
catalysis
has
emerged
as
a
promising
subfield
of
photocatalysis.
The
hybrid
nature
radical
species
enabled
wide
array
radical‐based
transformations
otherwise
challenging
or
unknown
via
conventional
chemistry.
In
parallel
to
the
ongoing
pursuit
alternative,
readily
available
precursors,
notable
discoveries
have
demonstrated
that
photoexcitation
can
alter
not
only
oxidative
addition
but
also
other
elementary
steps.
This
Minireview
highlights
recent
progress
in
this
area.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
63(9)
Опубликована: Ноя. 14, 2023
Visible
light-induced
Pd
catalysis
has
emerged
as
a
promising
subfield
of
photocatalysis.
The
hybrid
nature
radical
species
enabled
wide
array
radical-based
transformations
otherwise
challenging
or
unknown
via
conventional
chemistry.
In
parallel
to
the
ongoing
pursuit
alternative,
readily
available
precursors,
notable
discoveries
have
demonstrated
that
photoexcitation
can
alter
not
only
oxidative
addition
but
also
other
elementary
steps.
This
Minireview
highlights
recent
progress
in
this
area.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(3), С. 444 - 449
Опубликована: Янв. 1, 2024
Abstract
A
class
of
3‐(azidomethyl)‐2
H
‐azirine
has
been
obtained
through
a
copper‐catalyzed
diazidation
allenes
and
subsequent
azirination
involving
vinyl
azides.
variety
functional
groups
in
the
are
well
tolerated,
providing
series
motifs
51%‐93%
yields
(26
examples).
ACS Catalysis,
Год журнала:
2024,
Номер
15(2), С. 917 - 927
Опубликована: Дек. 30, 2024
An
aryl
radical
assay
is
used
to
provide
information
about
the
formation
of
radicals
from
halides
in
coupling
reactions
arenes
presence
palladium
sources
and
under
LED
irradiation
(λ
=
456
nm).
The
uses
2-halo-m-xylenes
as
substrates.
Aryl
indicated
both
by
a
defined
product
composition
signature
deuterium
isotope
effects.
Comparison
with
our
recently
published
results
for
corresponding
ground-state
palladium-catalyzed
shows
three
principal
differences:
(i)
photoactivated
reactions,
evidence
supports
intermediates
all
phosphine
ligands
tested,
contrast
thermal
chemistry
where
only
specific
had
encouraged
this
pathway,
while
others
promoted
nonradical
mechanism;
(ii)
oxidative
addition
complexes
that
are
formed
reaction
Pd(0)
react
photoactivation
form
biaryl
coupled
products
through
intermediates,
their
behavior
activation
-
so
Ar-Pd
bonds
homolyzed
irradiation;
(iii)
photoreactions
work
well
mild
bases
like
Cs2CO3,
required
KOtBu
base
due
different
roles
versus
photochemical
mechanisms.
Organic Letters,
Год журнала:
2024,
Номер
26(15), С. 2949 - 2954
Опубликована: Апрель 10, 2024
An
unprecedented
palladium-catalyzed
and
visible-light-driven
relay
reaction
of
allenylphosphine
oxide
with
in
situ
generated
nitrile
imines
is
presented
for
the
direct
synthesis
highly
valuable
polyarylbipyrazole
skeletons.
This
one-pot
strategy
involves
double
1,3-dipolar
cycloaddition
C(sp3)–P(V)
bond
cleavage
under
photocatalyst-free
mild
conditions.
The
approach
features
simple
operation,
a
high
step
economy,
broad
substrate
scope,
affording
corresponding
products
moderate
to
excellent
yields.
Chemical Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Transition
metal-catalyzed
cleavage
and
reconstruction
of
the
C-P
bond
provides
a
highly
efficient
rapid
method
for
transformation
organophosphine
compounds.
In
this
study,
novel
general
protocol
palladium-catalyzed
C(sp
The Journal of Organic Chemistry,
Год журнала:
2023,
Номер
88(19), С. 13967 - 13976
Опубликована: Сен. 21, 2023
A
novel
and
efficient
tandem
SN2
nucleophilic
substitution/Dieckmann
condensation
reaction
of
α-iodomethyl
phosphine
oxide
with
methyl
thiosalicylate
derivatives
has
been
developed
by
using
NaOH
as
a
base,
which
enables
the
expeditious
synthesis
2-phosphonyl-3-hydroxybenzo[b]thiophene
in
moderate
to
high
yields
under
simple
conditions.
This
research
provides
not
only
convenient
method
for
functionalization
benzo[b]thiophenes
at
2-position
3-position
but
also
new
organophosphorus
molecules.
Furthermore,
several
phosphonyl-substituted
were
obtained
from
resultant
2-phosphonyl-3-hydroxybenzo[b]thiophenes.
