A
unique
family
of
N,N,π,C-palladacycles
are
synthesized
from
8-aminoquinoline-coupled
nopol
derivatives
through
directed
1,2-migratory
insertion
in
situ
generated
arylpalladium(II)
species
followed
by
β-carbon
elimination.
These
palladacycles
have
exceptional
stability
under
air
and
moisture
at
room
temperature,
enabling
successful
isola-tion
characterization
X-ray
crystallography,
NMR,
high-resolution
mass
spectrometry.
Computational
studies
shed
light
on
the
facile
β-alkyl
elimination
step
origins
high
these
post
β-carbon-elimination
complexes.
Organometallics,
Год журнала:
2022,
Номер
42(1), С. 11 - 15
Опубликована: Дек. 20, 2022
A
unique
family
of
N,N,π,C-palladacycles
are
synthesized
from
8-aminoquinoline-coupled
nopol
derivatives
through
directed
1,2-migratory
insertion
in
situ
generated
arylpalladium(II)
species
followed
by
β-carbon
elimination.
These
palladacycles
have
exceptional
stability
under
air
and
moisture
at
room
temperature,
enabling
successful
isolation
characterization
X-ray
crystallography,
NMR,
high-resolution
mass
spectrometry.
Computational
studies
shed
light
on
the
facile
β-alkyl
elimination
step
origins
high
these
post-β-carbon-elimination
complexes.
Chemistry,
Год журнала:
2023,
Номер
5(2), С. 1369 - 1377
Опубликована: Июнь 1, 2023
The
sp3
C–H
acetoxylation
at
the
β-position
of
α,α-disubstituted
α-amino
acids
proceeds
smoothly
under
palladium
catalysis
in
presence
PhI(OAc)2.
This
reaction
provides
a
straightforward
synthetic
route
to
non-natural
β-acetoxy-α-amino
acids.
α-aminocyclopropanecarboxylic
acid
takes
place
via
ring-opening
selectively
afford
an
acyclic
γ-acetoxy-α,β-unsaturated
amino
acid.
Acta Crystallographica Section E Crystallographic Communications,
Год журнала:
2022,
Номер
78(4), С. 373 - 376
Опубликована: Март 10, 2022
The
title
compound,
C
20
H
23
NO
2
,
was
obtained
via
the
reaction
of
N
-allyl-
-phenylacrylamide
with
3-iodocyclohex-2-en-1-one
using
PdCl
(PPh
3
)
as
a
catalyst.
compound
crystallizes
in
monoclinic
space
group
P
1
/
c
.
fused-ring
system
is
not
planar
and
five-
six-membered
rings
are
trans
-fused.
molecular
geometry
partially
stabilized
by
an
intramolecular
C—H...O
hydrogen
bond,
forming
S
(6)
ring
motif.
In
crystal,
molecules
linked
C—H...π
interactions
into
three-dimensional
network.
To
further
analyse
intermolecular
interactions,
Hirshfeld
surface
analysis
performed.
results
indicate
that
most
important
contributions
to
overall
from
H...H
(65.5%),
O...H/H...O
(17.5%)
C...H/H...C
(14.3%)
interactions.
A
unique
family
of
N,N,π,C-palladacycles
are
synthesized
from
8-aminoquinoline-coupled
nopol
derivatives
through
directed
1,2-migratory
insertion
in
situ
generated
arylpalladium(II)
species
followed
by
β-carbon
elimination.
These
palladacycles
have
exceptional
stability
under
air
and
moisture
at
room
temperature,
enabling
successful
isola-tion
characterization
X-ray
crystallography,
NMR,
high-resolution
mass
spectrometry.
Computational
studies
shed
light
on
the
facile
β-alkyl
elimination
step
origins
high
these
post
β-carbon-elimination
complexes.