Direct Access to Furan and Cyclopropane Derivatives by Palladium-Catalyzed C-H Activation/Alkenes Insertion/Annulation
Chemical Communications,
Год журнала:
2024,
Номер
60(53), С. 6769 - 6772
Опубликована: Янв. 1, 2024
A
practical
and
effective
palladium-catalyzed
C-H
activation/alkene
insertion/annulation
has
been
reported
for
the
synthesis
of
furans
cyclopropanes
from
cyclic
1,3-diketones
or
1,3-indandione
diverse
alkenes,
resulting
in
moderate
to
good
yields.
This
protocol
demonstrates
excellent
selectivity
is
well-compatible
with
a
wide
range
alkene
substrates,
exhibiting
exceptional
regioselectivities,
high
efficiency,
functional
group
tolerance.
Язык: Английский
Synthesis of the Tetracyclic Spiro-naphthoquinone Chartspiroton
Organic Letters,
Год журнала:
2024,
Номер
26(15), С. 3065 - 3068
Опубликована: Апрель 1, 2024
Chartspiroton
is
a
recently
discovered
naphthoquinone
natural
product
that
features
spiro-fused
benzofuran
lactone.
We
report
its
first
synthesis
via
an
11-step
linear
sequence.
The
sterically
hindered
tetra-ortho-substituted
biaryl
subunit
was
installed
by
base-induced
ring
expansion
of
readily
available
1,3-indandione.
This
step
also
liberated
the
fully
substituted
naphthalene
core
unit
at
same
time.
unique
lactone
constructed
late-stage
oxidation
advanced
naphthoquinone.
Язык: Английский
CuBr2 Mediated Dehydrogenative [4 + 2] Annulation of 1-Naphthyl-1,3-indandiones and Alkenes
Xu Zhang,
Mengfan Chang,
Tongtong Ni
и другие.
Chemical Communications,
Год журнала:
2024,
Номер
60(68), С. 9070 - 9073
Опубликована: Янв. 1, 2024
Intermolecular
annulation
reactions
of
1-naphthyl-1,3-indandiones
with
alkenes
proceed
efficiently
in
the
presence
a
copper
catalyst
to
generate
spirocarbocycle
compounds.
Язык: Английский
Synthesis of 1,4‐Naphthoquinones via Palladium(II)‐Catalyzed Tertiary C−H Alkylation of Olefins Followed by C−C Bond Cleavage
Xu Zhang,
Mengfan Chang,
Tongtong Ni
и другие.
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
Abstract
An
efficient
method
has
been
developed
for
the
preparation
of
1,4‐naphthoquinones
via
a
palladium‐catalyzed
reaction
2‐aryl‐1,3‐indandiones
with
olefins.
This
involves
tertiary
C−H
alkylation
olefins
to
produce
alcohol,
followed
by
C−C
bond
cleavage.
Язык: Английский