Chemical Communications,
Год журнала:
2019,
Номер
55(50), С. 7251 - 7254
Опубликована: Янв. 1, 2019
A
new
electrochemical
decarboxylative
[4+2]
annulation
of
arylglyoxylic
acids
with
internal
alkynes
involving
C-H
functionalization
by
means
a
cooperative
anode
and
ruthenium
catalysis
is
presented.
This
reaction
represents
mechanistically
novel
strategy
as
an
ideal
supplement
to
the
methodology
employing
electrooxidative
process
avoid
use
additional
external
oxidizing
reagent
utilizing
H2O
carboxyl
oxygen
atom
source
be
engaged
in
synthesis
1H-isochromen-1-ones.
Angewandte Chemie International Edition,
Год журнала:
2019,
Номер
58(51), С. 18502 - 18507
Опубликована: Окт. 9, 2019
Abstract
The
first
example
of
carboxy
group
assisted,
remote‐selective
C(sp
2
)−H
activation
with
a
Pd
II
catalyst
has
been
developed
and
proceeds
through
possible
κ
coordination
the
group,
thus
suppressing
ortho
‐C−H
1
coordination.
Besides
meta
olefination,
direct
‐arylation
hydrocinnamic
acid
derivatives
low‐cost
aryl
iodides
achieved
for
time.
These
findings
may
motivate
exploration
novel
reactivities
assisted
C−H
reactions
intriguing
selectivities.
European Journal of Inorganic Chemistry,
Год журнала:
2021,
Номер
2021(30), С. 3023 - 3047
Опубликована: Июнь 15, 2021
Abstract
The
development
of
modern
chemistry
is
currently
proceeding
in
several
priority
areas
including
investigations
focused
on
the
synthesis,
stabilisation,
and
application
transition
metal
nanoparticles
(NPs),
which
are
widely
used
physical,
chemical,
engineering,
biomedical
processes.
A
special
place
among
known
NPs
occupied
by
cobalt
nanoparticles,
since
they
for
highly
important
targets,
such
as
creation
new
catalysts,
magnetic
devices,
composites,
or
carriers
drug
delivery.
selective
preparation
a
difficult
task
that
requires
conditions
has
some
limitations.
In
this
minireview,
we
summarise
most
successful
efficient
methods
obtaining
Co
NPs,
chemical
physical
aspects
their
preparation.
Organic Letters,
Год журнала:
2021,
Номер
23(4), С. 1209 - 1215
Опубликована: Фев. 4, 2021
Electrochemically
driven,
Cp*Ir(III)-catalyzed
regioselective
annulative
couplings
of
benzoic
acids
with
alkynes
have
been
established
herein.
The
combination
iridium
catalyst
and
electricity
not
only
circumvents
the
need
for
stoichiometric
amount
chemical
oxidant,
but
also
ensures
broad
reaction
compatibility
a
wide
array
sterically
electronically
diverse
substrates.
This
electrochemical
approach
represents
sustainable
strategy
as
an
ideal
alternative
supplement
to
oxidative
annulations
methodology
be
engaged
in
synthesis
isocoumarin
derivatives.
Science,
Год журнала:
2018,
Номер
362(6414), С. 564 - 568
Опубликована: Ноя. 1, 2018
Steps
to
smaller
rings
Certain
ring-forming
reactions
in
organic
chemistry
are
efficient
because
the
orbital
symmetries
match
up
reactants
and
products.
Oxyallyl
ions
tend
react
with
dienes
this
paradigm
form
seven-membered
rings.
Under
palladium
catalysis,
Trost
et
al.
redirected
reaction
toward
more
common
five-membered
tetrahydrofuran
by
appending
an
ester
diene.
Although
that
pathway
is
symmetry-forbidden,
electron-withdrawing
appears
stabilize
a
key
intermediate
along
stepwise
route
ring.
Science
,
issue
p.
564
Chemical Communications,
Год журнала:
2019,
Номер
55(50), С. 7251 - 7254
Опубликована: Янв. 1, 2019
A
new
electrochemical
decarboxylative
[4+2]
annulation
of
arylglyoxylic
acids
with
internal
alkynes
involving
C-H
functionalization
by
means
a
cooperative
anode
and
ruthenium
catalysis
is
presented.
This
reaction
represents
mechanistically
novel
strategy
as
an
ideal
supplement
to
the
methodology
employing
electrooxidative
process
avoid
use
additional
external
oxidizing
reagent
utilizing
H2O
carboxyl
oxygen
atom
source
be
engaged
in
synthesis
1H-isochromen-1-ones.
