Electrooxidative iridium-catalyzed sp2 C−H activation-annulation leading to cationic π-extended heteroaromatics
Qi‐Liang Yang,
No information about this author
Nana Guo,
No information about this author
Shu-Xian Liu
No information about this author
et al.
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(17), P. 4849 - 4856
Published: Jan. 1, 2024
An
electrochemically
driven,
Cp*Ir(
iii
)-catalyzed
method
for
alkenyl
and
aromatic
C(sp
2
)–H
activation
coupling
with
alkynes
the
synthesis
of
biologically
useful
quaternary
ammonium
salts
under
mild
conditions
is
demonstrated.
Language: Английский
Rh(iii)-catalyzed selective C2 C–H acyloxylation of indoles
Chemical Communications,
Journal Year:
2023,
Volume and Issue:
60(2), P. 216 - 219
Published: Dec. 1, 2023
Herein,
we
present
the
first
highly
regio-
and
chemoselective
C2
C-H
acyloxylation
of
indole
under
rhodium
catalysis
an
N-quinolinyl
auxiliary.
This
strategy
accommodates
a
wide
range
indoles
structurally
diverse
carboxylic
acids
with
good
reaction
efficiencies
to
yield
functionalized
indoles.
The
utility
this
logic
was
demonstrated
by
concise
synthesis
2-oxindole
derivatives.
Preliminary
mechanistic
studies
indicate
that
catalyst
turnover
RhIII-RhIV/V-RhII/III-RhIII
might
be
involved
in
catalytic
transformation.
Language: Английский