Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
11(2), С. 500 - 507
Опубликована: Дек. 19, 2023
Novel
radical-triggered
1,3-C
→
C
migrations
of
N
-allyl
enamines
under
base-free
conditions
and
the
catalyst-dependent
synthesis
cyclic
imines
were
achieved.
Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
11(3), С. 895 - 915
Опубликована: Дек. 20, 2023
Photoinduced
radical–polar
crossover
cyclization
(RPCC)
of
bifunctional
alkenes
is
high
synthetic
utility
to
produce
cyclic
products
with
precise
alkene
design.
This
review
summarizes
the
recent
representative
advances
in
field
RPC.
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
42(19), С. 2346 - 2350
Опубликована: Май 27, 2024
Comprehensive
Summary
Catalytic
and
green
strategies
for
the
synthesis
of
privileged
scaffolds
are
synthetically
appealing.
We
now
report
a
radical‐polar
crossover
(RPC)‐enabled
three‐component
cyclization
bromodifluoroalkyls
with
enaminones
6‐aminouraciles
via
visible‐light‐induced
domino
cyclization.
The
reaction
exhibited
broad
substrate
scope
(>
40
examples)
including
complex
molecules,
which
highlighted
utility
this
strategy
construction
library
bioactive
analogs.
Chemical Science,
Год журнала:
2023,
Номер
14(35), С. 9452 - 9460
Опубликована: Янв. 1, 2023
We
report
an
azido-alkynylation
of
alkenes
allowing
a
straightforward
access
to
homopropargylic
azides
by
combining
hypervalent
iodine
reagents
and
alkynyl-trifluoroborate
salts.
The
design
photocatalytic
redox-neutral
radical
polar
crossover
process
was
key
develop
this
transformation.
A
variety
possessing
electron-rich
-poor
aryls,
heterocycles
or
ether
substituents
could
be
accessed
in
34-84%
yield.
products
are
synthetically
useful
building
blocks
that
easily
transformed
into
pyrroles
bioactive
amines.
Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
The
azidofunctionalization
of
alkenes
under
mild
conditions
using
commercially
available
starting
materials
and
easily
accessible
reagents
is
reported
based
on
a
radical-polar
crossover
strategy.
A
broad
range
alkenes,
including
vinyl
arenes,
enamides,
enol
ethers,
sulfides,
dehydroamino
esters,
were
regioselectively
functionalized
with
an
azide
nucleophiles
such
as
azoles,
carboxylic
acids,
alcohols,
phosphoric
oximes,
phenols.
method
led
to
more
efficient
synthesis
1,2-azidofunctionalized
pharmaceutical
intermediates
when
compared
previous
approaches,
resulting
in
both
reduction
step
count
increase
overall
yield.
scope
limitations
these
transformations
further
investigated
through
standard
unbiased
selection
15
substrate
combinations
out
1,175,658
possible
clustering
technique.
Angewandte Chemie,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Abstract
The
azidofunctionalization
of
alkenes
under
mild
conditions
using
commercially
available
starting
materials
and
easily
accessible
reagents
is
reported
based
on
a
radical‐polar
crossover
strategy.
A
broad
range
alkenes,
including
vinyl
arenes,
enamides,
enol
ethers,
sulfides,
dehydroamino
esters,
were
regioselectively
functionalized
with
an
azide
nucleophiles
such
as
azoles,
carboxylic
acids,
alcohols,
phosphoric
oximes,
phenols.
method
led
to
more
efficient
synthesis
1,2‐azidofunctionalized
pharmaceutical
intermediates
when
compared
previous
approaches,
resulting
in
both
reduction
step
count
increase
overall
yield.
scope
limitations
these
transformations
further
investigated
through
standard
unbiased
selection
15
substrate
combinations
out
1,175,658
possible
clustering
technique.
We
present
a
photocatalytic
method
for
alkylamination
of
alkenes,
enabling
efficient
C-C
and
C-N
bond
formation
to
construct
aza-heterocycles
valuable
in
drug
discovery.
Using
radical-polar
crossover
pathway,
electron-deficient
alkenes
are
reduced
electrophilic
radicals,
which
react
with
electron-rich
form
nucleophilic
radicals.
Oxidation
these
intermediates
yields
carbocations,
trapped
by
aza-heteroarenes
afford
alkylaminated
products.
This
strategy
enhances
molecular
complexity
while
suppressing
side
reactions.
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
22(25), С. 5052 - 5086
Опубликована: Янв. 1, 2024
1,2/1,1-Difunctionalization
of
alkynes
(cascade
C–C
and
C–O
bond
formations)
serves
as
one
the
reliable
methods
for
synthesis
numerous
chemical
architectures.
Chemical Science,
Год журнала:
2024,
Номер
15(28), С. 11092 - 11098
Опубликована: Янв. 1, 2024
A
concise
protocol
for
the
synthesis
of
constrained
bicycloalkanes
has
been
developed,
using
easily
obtainable
α-silyl
alcohols
and
alkenes
through
a
bibase-promoted
brook
rearrangement/radical-polar
crossover
cyclization
(RPCC)
process.