Palladium-Catalyzed Synthesis of Silylated 3,3′-Bi(3,8-dihydrocyclopenta[a]indenyls) from Silylacetylenes
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 18, 2025
The
reaction
of
o-iodo(trimethylsilylethynyl)benzenes
with
trimethylsilylacetylene
in
the
presence
a
Pd
catalyst
afforded
dimer
8,8,10-tris(trimethylsilyl)-3,8-dihydrocyclopenta[a]indene
as
sole
identified
product.
Neither
regioisomer
nor
monomers
were
detected,
which
revealed
that
complete
regiocontrol
silyl
migration
and
dimerization
occurred.
Desilylation
silylated
dimers
dihydropentalene
through
simultaneous
transposition
double
bonds.
Language: Английский
Catalytic Generation of o-Quinone Dimethides by a Nondiazo Approach via Donor/Donor Platinum Carbenes
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 27, 2025
A
platinum-catalyzed
reaction
of
enynones
with
various
dienophiles
has
been
developed
for
the
construction
tetrahydronaphthalene
derivatives,
which
undergo
a
Diels-Alder
process
platinum
carbenes
and
o-quinone
dimethide
(o-QDM)
intermediates.
In
this
protocol,
an
alkoxy-substituted
conjugated
enynone
is
used
as
nondiazo
carbene
precursor
generation
o-QDMs,
thereby
extending
methods
available
o-QDMs.
The
characterized
by
its
high
atom
economy,
diastereoselectivity,
broad
substrate
scope.
Language: Английский
Divergent Synthesis of Enynals and Dihydrobenzo[f]isoquinolines via Deoxyalkynylation of Enaminones Enabled by the Cooperative Action of Tf2O/Pd/Cu
Jianping Lin,
No information about this author
Jiakai Tian,
No information about this author
Lu Yu
No information about this author
et al.
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
89(22), P. 16419 - 16425
Published: Oct. 28, 2024
A
variety
of
enynals
and
dihydrobenzo[
Language: Английский