The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 22, 2024
A
novel
Cu/Pd-catalyzed
domino
radical
cyclization
and
C-H
carbonylation
of
α-bromocarbonyls
has
been
developed,
which
enables
the
rapid
incorporation
CO
unit
into
polycyclic
quinolin-2(1
Organic Letters,
Journal Year:
2023,
Volume and Issue:
25(28), P. 5314 - 5318
Published: July 6, 2023
A
palladium-catalyzed
one-pot
two-step
radical
mediated
carbonylative
cyclization
of
1,7-enynes
with
perfluoroalkyl
iodides
and
Mo(CO)6
has
been
developed
for
the
construction
polycyclic
3,4-dihydroquinolin-2(1H)-one
scaffolds.
This
method
realizes
a
facile
synthesis
various
derivatives
containing
carbonyl
units
in
high
yields.
Moreover,
modifications
several
bioactive
molecules
were
demonstrated
using
this
protocol.
Organic Letters,
Journal Year:
2022,
Volume and Issue:
24(48), P. 8843 - 8847
Published: Nov. 24, 2022
A
palladium-catalyzed
cascade
radical
cyclization
and
carbonylation
of
1,7-enynes
with
perfluoroalkyl
iodides
alcohols
has
been
described.
This
procedure
provides
a
facile
efficient
approach
for
the
construction
3,4-dihydroquinolin-2(1H)-one
skeletons
by
using
benzene-1,3,5-triyl
triformate
(TFBen)
as
CO
source.
method
enables
incorporation
both
carbonyl
units
into
skeletons,
producing
variety
derivatives
in
moderate
to
high
yields
excellent
E/Z
selectivity.
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
novel
palladium-catalyzed
domino
radical
cyclization
and
C–H
amination
of
1,7-enynes
has
been
developed
for
the
rapid
establishment
N-containing
fused
quinolin-2(1
H
)-one
scaffolds.
A
gold(I)-catalyzed
tandem
cyclization/peroxidation
of
2-alkynyl-1-carbonylbenzenes
with
tert-butyl
hydroperoxide
(TBHP)
has
been
successfully
developed
to
access
1-peroxidized
1H-isochromene
derivatives
in
moderate
good
yields.
The
use
one
the
resultant
1H-isochromenes
(3a)
for
construction
phenyl(8-phenylbicyclo[4.2.0]octa-1(6),2,4,7-tetraen-7-yl)methanone
(4),
phenyl(3-phenyl-1,3-dihydroisobenzofuran-1-yl)methanone
(5)
and
2-(2-benzoylphenyl)-1-phenylethan-1-one
(6)
also
investigated,
respectively.
Organic & Biomolecular Chemistry,
Journal Year:
2022,
Volume and Issue:
20(41), P. 8049 - 8053
Published: Jan. 1, 2022
In
this
text,
we
describe
a
nickel-catalyzed
cyanation
reaction
of
aryl/alkenyl
halides
with
isocyanides,
affording
nitriles
in
moderate
to
good
yields
broad
functional
group
tolerance.
Organic & Biomolecular Chemistry,
Journal Year:
2024,
Volume and Issue:
22(37), P. 7618 - 7622
Published: Jan. 1, 2024
A
novel
visible-light-driven
photoredox-catalyzed
cascade
bicyclization
of
1,7-enynes
with
aqueous
sulfoxonium
ylides
is
reported.
The
reaction
highly
chemoselective
three
new
C-C
bonds,
two
rings,
and
an
all-carbon
quaternary
stereocenter
constructed
in
a
one-pot
fashion.
This
mild
protocol
features
remarkably
broad
substrate
scope
good
functional
group
tolerance,
providing
general
practical
approach
to
access
various
cyclopenta[
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(18), P. 13248 - 13261
Published: Aug. 24, 2023
A
mild
approach
for
the
synthesis
of
benzo[j]phenanthridin-6(5H)-one
derivatives
from
1,7-enynes
and
aryldiazonium
salts
has
been
successfully
developed
involving
a
domino
radical
relay
process
enabled
by
heteroleptic
Cu(I)-photosensitizer
under
visible-light-driven
photocatalytic
conditions.
Mechanistic
studies
disclosed
that
oxidative
quenching
excited
state
PS
4
with
via
an
SET
generated
aryl
radicals,
which
could
play
initiator-terminator
dual
role
within
whole
process,
namely,
at
initial
step
acting
as
donor
to
trigger
addition
olefin
moieties
while
final
stage
serving
acceptor
complete
cyclization.
Organic & Biomolecular Chemistry,
Journal Year:
2023,
Volume and Issue:
21(39), P. 7960 - 7967
Published: Jan. 1, 2023
A
visible-light
driven
photocatalytic
construction
of
benzo[b]fluorenones
from
1,6-enynes
and
aryldiazonium
salts
has
been
achieved
via
a
P/N-heteroleptic
Cu(I)-photosensitizer-catalyzed
domino
radical
relay
annulation
process.
Preliminary
mechanistic
studies
revealed
that
the
aryl
radicals
in
situ
generated
with
excited
state
Cu(I)-photosensitizer
played
dual
role
initiator
terminator
concise
highly
fused
benzo[b]fluorenone
scaffold.
Organic Letters,
Journal Year:
2021,
Volume and Issue:
24(1), P. 268 - 273
Published: Dec. 10, 2021
Chemodivergent
Pd-catalyzed
annulations
of
cyclic
β-keto
esters
with
3-aryl-2H-azirines
have
been
developed
to
provide
rapid
access
eight-membered
ring
lactams,
bicyclic
3,4-dihydro-2H-pyrrole
derivatives,
and
(E)-methyl
[2-(2-oxocyclohexylidene)-2-phenylethyl]carbamates
high
efficiency.
The
chemoselectivity
can
be
determined
by
tuning
the
mono-
or
bisphosphine
ligands
as
well
substrate
structure
esters.