Chemistry - An Asian Journal,
Год журнала:
2023,
Номер
19(4)
Опубликована: Ноя. 29, 2023
Abstract
A
palladium‐catalyzed
reaction
for
intermolecular
selective
C−H
cyclocarbonylation
of
2
‐
iodobiphenyls
is
described.
Intriguingly,
the
vinylene
carbonate
acts
as
a
carbon
monoxide
transfer
agent
to
enable
annulation
reaction.
Moreover,
versatile
synthon,
fluoren‐9‐one
can
be
transformed
into
variety
functionalized
organic
molecules,
such
[1,1′‐biphenyl]‐2‐carboxylic
acid,
1′
H
,3′
‐spiro[fluorene‐9,2′‐perimidine]
and
N
‐tosylhydrazones.
Organic Chemistry Frontiers,
Год журнала:
2023,
Номер
10(22), С. 5717 - 5734
Опубликована: Янв. 1, 2023
Vinylene
carbonate
(VC)
has
emerged
as
a
promising
coupling
partner
to
participate
in
various
attractive
C–H
conversions
and
implement
an
increasing
number
of
novel
reactions.
In
this
review,
we
provide
summary
the
advancements
achieved
metal-catalyzed
functionalization
using
VC.
Green Chemistry,
Год журнала:
2023,
Номер
25(11), С. 4282 - 4291
Опубликована: Янв. 1, 2023
The
chemical
upcycling
of
poly(bisphenol
A
carbonate)
was
carried
out
through
organocatalysis
using
α-hydroxyketones
as
nucleophiles,
leading
to
valuable
vinylene
carbonates.
Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
365(2), С. 238 - 243
Опубликована: Янв. 5, 2023
Abstract
The
transition‐metal‐catalyzed
C−H
activation
and
annulation
reactions
of
pyrazolidinones
with
4‐vinyl‐1,3‐dioxolan‐2‐one
or
vinylene
carbonate
are
described
herein.
This
protocol
provided
two
types
pyrazolo[1,2‐a]cinnolines
as
essential
assets
for
the
development
bioactive
compounds,
synthetic
practicality
was
performed
explained
44
examples.
possible
mechanism
these
is
proposed
based
on
preliminary
studies
previous
reports,
no
oxidant
added
to
both
reactions.
magnified
image
The Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
A
divergent
[5
+
1]
cyclization
reaction
of
o-aminobenzamides
with
vinylene
carbonate
has
been
developed,
rapidly
generating
three
types
cyclic
molecules
including
quinazolinones,
2-methylquinazolinones,
and
2,3-dihydroquinazolinones
high
chemoselectivity.
In
this
discovery,
blooms
as
a
multifunctional
reagent
to
participate
in
cyclization.
The
potential
new
finding
is
further
emphasized
by
assembling
the
benzothiazole
heteroarene
via
[4
version
tolerating
bioactive
units
well.
European Journal of Organic Chemistry,
Год журнала:
2023,
Номер
26(44)
Опубликована: Сен. 27, 2023
Abstract
A
mild
and
convenient
synthesis
of
3,4‐unsubstituted
isoquinolones
has
been
achieved
from
N
‐methoxybenzamides
vinylene
carbonate
as
an
acetylene
surrogate
with
a
versatile
rhodium(III)
catalyst.
The
reaction
proceeded
at
room
temperature
in
biomass
derived
ethanol
solvent.
This
protocol
avoids
the
use
stoichiometric
external
oxidant,
served
internal
oxidant.
C−H/N−H
activation
annulation
manifold
broad
substrate
scope
excellent
levels
regioselectivities.
preliminary
mechanistic
studies
suggest
facile
reversible
chelation‐assisted
C−H
rhodation.
Diversification
provide
access
to
4‐substituted
isoquinolines,
which
are
complementary
previously
reported
protocols.
RSC Advances,
Год журнала:
2024,
Номер
14(7), С. 4804 - 4809
Опубликована: Янв. 1, 2024
The
step-economical
synthesis
of
C2,
C3-unsubstituted
1-aminoindole
derivatives
through
rhodium-catalyzed
annulation
hydrazines
with
vinylene
carbonate.
Asian Journal of Organic Chemistry,
Год журнала:
2023,
Номер
12(4)
Опубликована: Март 11, 2023
Abstract
A
strategy
for
synthesizing
N
,
O
‐chelated
boron
difluoride
complexes
via
copper‐catalyzed
tandem
cyclization
of
readily
available
2‐aryl
pyridines
has
been
developed.
This
reaction
tolerates
a
wide
range
functional
groups,
providing
the
corresponding
products
in
43–91%
yield.
Furthermore,
photophysical
properties
were
investigated
by
measuring
UV/Vis
absorption
and
fluorescence
spectra
several
product
derivatives.
Chemistry - An Asian Journal,
Год журнала:
2023,
Номер
18(19)
Опубликована: Авг. 24, 2023
Pyrimidoindolones
are
an
important
structural
motif
found
in
many
natural
products
and
essential
to
the
pharmaceutical
agrochemical
industry.
Direct
synthesis
of
3,4-unsubstituted
pyrimidoindolones
is
not
easily
accessible.
Here
we
report
a
rhodium(III)-catalyzed
C-H/N-H
activation
annulation
approach
for
obtaining
from
N-carbamoylindoles
vinylene
carbonate.
The
reaction
occurs
at
room
temperature
does
require
any
external
oxidants.
A
diverse
spectrum
indoles
were
demonstrated
be
viable
substrates
capable
producing
desired
high
yields.
In
addition,
scope
has
been
expanded
include
pyrrole
substrate.
Furthermore,
detailed
mechanistic
studies
have
performed
delineate
working
mode
reaction.
Organic & Biomolecular Chemistry,
Год журнала:
2023,
Номер
21(41), С. 8320 - 8328
Опубликована: Янв. 1, 2023
A
rhodium-catalyzed
synthesis
of
phenylacetate
has
been
realized
by
direct
C-H
carboxymethylation
anilines
bearing
removable
directing
groups.
The
reaction
occurred
most
efficiently
in
air,
without
any
external
base
or
oxidant.
This
methodology
is
expected
to
provide
a
facile
and
general
access
various
bioactive
2-amino
aromatic
acetic
acid
derivatives.
