Chemistry - An Asian Journal,
Год журнала:
2018,
Номер
13(20), С. 2958 - 2977
Опубликована: Авг. 15, 2018
Over
the
past
few
years,
development
of
new
radical
reactions
has
gained
considerable
momentum.
Most
such
transformations
heavily
depend
on
in
situ
generation
reactive
species,
initiated
by
oxidants,
metal
salts,
visible-light
photocatalysis,
or
electrocatalysis.
In
this
context,
numerous
radical-enabled
bicyclization
and
annulation/1,n-bifunctionalization
have
been
developed,
thereby
providing
efficient
synthetic
strategies
for
assembly
functionalized
cyclic
rings
that
contain
both
heterocyclic
isocyclic
skeletons.
Focus
Review,
we
highlight
recent
progress
rapidly
growing
area
presenting
a
series
catalytic
oxidative
reactions,
along
with
their
reaction
mechanisms
applications.
Chemical Reviews,
Год журнала:
2020,
Номер
121(1), С. 506 - 561
Опубликована: Май 29, 2020
Thermal
C–C
bond
cleavage
reactions
allow
the
construction
of
structurally
diverse
molecular
skeletons
via
predictable
and
efficient
reorganizations.
Visible
light
photoredox-catalyzed
radical-mediated
have
recently
emerged
as
a
powerful
alternative
method
for
overcoming
thermodynamic
kinetic
barrier
in
scaffolds.
In
recent
years,
plethora
elegant
useful
been
invented,
products
are
sometimes
otherwise
inaccessible
by
classic
thermal
reactions.
Considering
great
influence
synthetic
potential
these
reactions,
we
provide
summary
state
art
visible
light-driven
cleavage/functionalization
strategies
with
specific
emphasis
on
working
models.
We
hoped
that
this
review
will
be
medicinal
organic
chemists
inspire
further
reaction
development
interesting
area.
Chemical Communications,
Год журнала:
2019,
Номер
55(38), С. 5408 - 5419
Опубликована: Янв. 1, 2019
In
this
review,
the
recent
advances
of
application
1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene
(4CzIPN)
as
a
photoredox
catalyst
in
past
three
years
(2016–2018)
for
various
organic
reactions
are
summarized.
Angewandte Chemie International Edition,
Год журнала:
2020,
Номер
59(43), С. 18866 - 18884
Опубликована: Июль 7, 2020
The
choice
of
electrode
material
is
critical
for
achieving
optimal
yields
and
selectivity
in
synthetic
organic
electrochemistry.
imparts
significant
influence
on
the
kinetics
thermodynamics
electron
transfer,
frequently
defines
success
or
failure
a
transformation.
Electrode
processes
are
complex
so
often
empirical
underlying
mechanisms
rationale
unknown.
In
this
review,
we
aim
to
highlight
recent
instances
where
offered,
which
should
aid
future
reaction
development.
Chemical Reviews,
Год журнала:
2021,
Номер
122(2), С. 2017 - 2291
Опубликована: Ноя. 23, 2021
We
present
here
a
review
of
the
photochemical
and
electrochemical
applications
multi-site
proton-coupled
electron
transfer
(MS-PCET)
in
organic
synthesis.
MS-PCETs
are
redox
mechanisms
which
both
an
proton
exchanged
together,
often
concerted
elementary
step.
As
such,
MS-PCET
can
function
as
non-classical
mechanism
for
homolytic
bond
activation,
providing
opportunities
to
generate
synthetically
useful
free
radical
intermediates
directly
from
wide
variety
common
functional
groups.
introduction
practitioner’s
guide
reaction
design,
with
emphasis
on
unique
energetic
selectivity
features
that
characteristic
this
class.
then
chapters
oxidative
N–H,
O–H,
S–H,
C–H
homolysis
methods,
generation
corresponding
neutral
species.
Then,
reductive
PCET
activations
involving
carbonyl,
imine,
other
X═Y
π-systems,
heteroarenes,
where
ketyl,
α-amino,
heteroarene-derived
radicals
be
generated.
Finally,
we
asymmetric
catalysis
materials
device
applications.
Within
each
chapter,
subdivide
by
group
undergoing
homolysis,
thereafter
type
transformation
being
promoted.
Methods
published
prior
end
December
2020
presented.
Organic Letters,
Год журнала:
2018,
Номер
20(22), С. 7125 - 7130
Опубликована: Окт. 29, 2018
A
novel
and
efficient
visible-light-induced
C(sp2)–H/N–H
cross-dehydrogenative
coupling
(CDC)-amination
with
both
primary
secondary
aliphatic
amines
at
room
temperature
in
air
is
developed.
This
photocatalytic
reaction
allows
the
direct
formation
of
3-aminoquinoxalin-2(1H)-ones
via
CDC-amination
absence
any
external
oxidant
added
from
outside.
Preliminary
mechanistic
studies
reveal
that
present
proceeds
through
a
radical
process.
CCS Chemistry,
Год журнала:
2019,
Номер
1(1), С. 38 - 49
Опубликована: Апрель 1, 2019
This
review
covers
the
recent
literature
on
oxidative
generation
of
N-centered
radicals
using
photoredox
catalysis.
The
concept
proton-coupled
electron
transfer
is
briefly
discussed.
Applications
such
reactive
in
cascade
processes
comprising
arene
amidation,
alkene
C—C
bond
cleavage
reactions,
and
remote
C—H
functionalization
are
addressed.
In
addition,
novel
reagents
allowing
for
clean
N-radical
A
heterogeneous
catalyst
is
a
backbone
of
modern
sustainable
green
industries;
and
understanding
the
relationship
between
its
structure
properties
key
for
advancement.
Recently,
many
upscaling
synthesis
strategies
development
variety
respectable
control
atomically
precise
catalysts
are
reported
explored
various
important
applications
in
catalysis
energy
environmental
remediation.
Precise
atomic-scale
has
allowed
to
significantly
increase
activity,
selectivity,
some
cases
stability.
This
approach
proved
be
relevant
related
technologies
such
as
fuel
cell,
chemical
reactors
organic
synthesis,
Therefore,
this
review
aims
critically
analyze
recent
progress
on
single-atom
(SACs)
application
oxygen
reduction
reaction,
evolution
hydrogen
and/or
electrochemical
transformations.
Finally,
opportunities
that
may
open
up
future
summarized,
along
with
suggesting
new
possible
exploitation
SACs.
Green Chemistry,
Год журнала:
2019,
Номер
21(14), С. 3858 - 3863
Опубликована: Янв. 1, 2019
The
first
example
of
direct
synthesis
2-sulfonylquinolines
through
visible-light-induced
deoxygenative
C2-sulfonylation
quinoline
N-oxides
with
organic
dye
as
the
catalyst
and
ambient
air
sole
oxidant
was
developed.
