Chinese Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
42(3), P. 259 - 263
Published: Sept. 21, 2023
Comprehensive
Summary
A
series
of
3‐acyl‐substituted
isoindolinone
derivatives
were
synthesized
in
a
one‐pot
manner
via
the
reaction
o
‐bromobenzaldehydes,
isocyanides,
and
carboxylic
acids
presence
palladium
catalyst
base.
The
employing
easily
available
starting
materials
features
simple
operation
high
efficiency.
mechanistic
study
showed
that
might
undergo
1)
Pd‐catalyzed
[3+2]
cyclization
‐bromobenzaldehyde
with
isocyanide
re‐insertion
another
molecule
isocyanide,
2)
addition
acid
to
situ
formed
ketenimine
followed
by
rearrangement
relay
give
3,3‐diacyl‐substituted
derivative.
Further
transformations
obtained
products
through
decarbonylation
could
also
be
realized.
The Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
88(22), P. 15597 - 15607
Published: Nov. 2, 2023
Amide
and
lactam
frameworks
were
synthesized
via
an
efficient
two-step
strategy.
In
this
protocol,
pyridotriazoles
first
treated
with
isocyanates
to
form
the
corresponding
amides,
which
found
be
sufficiently
reactive
undergo
subsequent
intramolecular
N-H
insertion
in
absence
of
any
additional
reagents
or
catalysts.
Chinese Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
42(3), P. 259 - 263
Published: Sept. 21, 2023
Comprehensive
Summary
A
series
of
3‐acyl‐substituted
isoindolinone
derivatives
were
synthesized
in
a
one‐pot
manner
via
the
reaction
o
‐bromobenzaldehydes,
isocyanides,
and
carboxylic
acids
presence
palladium
catalyst
base.
The
employing
easily
available
starting
materials
features
simple
operation
high
efficiency.
mechanistic
study
showed
that
might
undergo
1)
Pd‐catalyzed
[3+2]
cyclization
‐bromobenzaldehyde
with
isocyanide
re‐insertion
another
molecule
isocyanide,
2)
addition
acid
to
situ
formed
ketenimine
followed
by
rearrangement
relay
give
3,3‐diacyl‐substituted
derivative.
Further
transformations
obtained
products
through
decarbonylation
could
also
be
realized.