Chinese Journal of Chemistry,
Год журнала:
2021,
Номер
39(10), С. 2781 - 2788
Опубликована: Июнь 27, 2021
Main
observation
and
conclusion
In
this
article,
we
report
a
base‐promoted
sequential
cyclization/aldol‐type
condensation/isomerization
cascade
reaction
of
N
‐propargyl‐β‐enaminones
with
aryl
aldehydes.
The
key
step
in
protocol
is
the
generation
1,4‐oxazepine
anions
from
under
basic
conditions,
which
are
captured
by
method
allows
formation
one
pyridone
core
C—C
double
bond
“one
pot”,
preparation
variety
densely
decorated
derivatives
moderate
to
good
yields
broad
functional
group
tolerance.
Russian Chemical Reviews,
Год журнала:
2023,
Номер
92(9), С. RCR5090 - RCR5090
Опубликована: Авг. 6, 2023
The
review
addresses
the
applications
of
pyrroles
and
compounds
based
on
them
in
pharmaceutics
various
branches
technology
which
pyrrole
plays
a
key
role.
emphasis
is
put
studies
that
were
not
covered
previous
reviews.
second
part
summarizes
published
data
last
15
years
synthesis
from
widely
encountered
carbonyl
compounds,
chosen
because
ready
availability
possibility
varying
substituents.
This
type
systematization
proposed
for
first
time.<br>The
bibliography
includes
199
references.
references
Advanced Synthesis & Catalysis,
Год журнала:
2021,
Номер
363(16), С. 4085 - 4090
Опубликована: Июнь 25, 2021
Abstract
We
herein
describes
an
HFIP‐mediated
[4+2]‐cycloaddition
reaction
from
simple
and
easily
available
isatoic
anhydrides
cyclopropenones
under
silver
catalysis.
This
transformation
involves
the
tandem
decarboxylative
esterification,
intermolecular
addition,
intramolecular
substitution,
small
ring
opening
isomerization
processes,
which
allows
rapid
assembly
of
versatile
2‐diarylalkenyl‐4
H
‐3,1‐benzoxazin‐4‐ones.
magnified
image
Chinese Journal of Chemistry,
Год журнала:
2021,
Номер
39(10), С. 2781 - 2788
Опубликована: Июнь 27, 2021
Main
observation
and
conclusion
In
this
article,
we
report
a
base‐promoted
sequential
cyclization/aldol‐type
condensation/isomerization
cascade
reaction
of
N
‐propargyl‐β‐enaminones
with
aryl
aldehydes.
The
key
step
in
protocol
is
the
generation
1,4‐oxazepine
anions
from
under
basic
conditions,
which
are
captured
by
method
allows
formation
one
pyridone
core
C—C
double
bond
“one
pot”,
preparation
variety
densely
decorated
derivatives
moderate
to
good
yields
broad
functional
group
tolerance.
