Journal of Heterocyclic Chemistry,
Год журнала:
2023,
Номер
61(2), С. 324 - 330
Опубликована: Ноя. 27, 2023
Abstract
A
convenient
and
efficient
reagent
system
of
arylhydrazine
salt‐selenium
was
developed
to
directly
selenizing
uracil
preparation
5‐selenium
uracil.
In
the
presence
this
reagent,
a
variety
uracil/pyrimidine
converts
their
corresponding
5‐arylselanyluracils/5‐selenopyrimidine
with
good
yield
high
regioselectivity.
Elemental
selenium
commercially
accessible,
stable,
affordable,
easy
use
used
as
selenization
reagent.
This
reaction
is
attractive
practical
since
there
are
no
catalysts
or
ligands
needed,
wide
range
functional
groups
can
be
tolerated.
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(9), С. 6117 - 6125
Опубликована: Апрель 24, 2024
The
first
paired
electrolysis-enabled
arylation
of
quinoxalin-2(1H)-ones
was
achieved
using
cyanoarenes
as
the
reagents.
A
variety
3-arylquinoxalin-2(1H)-ones
with
various
important
functional
groups
were
obtained
in
moderate
to
good
yields
under
metal-
and
chemical
oxidant-free
conditions.
With
a
pair
reductive
oxidative
processes
occurring
among
substrates
reaction
intermediates,
power
consumption
can
be
dramatically
reduced.
European Journal of Organic Chemistry,
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 11, 2023
Abstract
The
multicomponent
reactions
of
quinoxalin‐2(1
H
)‐ones
has
attracted
considerable
interest
due
to
their
significant
biological
and
chemical
activities.
very
recent
advances
(from
2021
the
beginning
2023)
on
radical
three‐component
cascade
reaction
)‐one
derivatives
at
C3
position
were
summarized
in
this
mini‐review.
According
kind
types
involved,
some
representative
examples
detailed
mechanism
have
been
categorized
discussed.
red
front
was
covered
by
Figure
1.
Organic & Biomolecular Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
review
highlights
the
recent
advances
in
multi-component
reactions
for
synthesizing
heterocyclic
compounds
via
green
approaches
including
photoredox
catalysis,
electrochemical
activation,
catalyst-free
methods
and
use
of
water
as
sole
solvent.
The Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 7, 2025
Controlling
the
reaction
selectivity
to
achieve
a
precision
synthesis
is
constant
concern
for
chemists.
Here,
we
report
palladium-catalyzed
deaminative
coupling
of
propargylamines
with
arylboronic
acids
generate
allene
skeletons.
Importantly,
this
approach
allows
regioselective
γ-arylation
unactivated
propargyl
tertiary
amines
access
various
allenes
in
absence
amino-activating
reagents.
We
present
wide
range
and
boronic
demonstrate
synthetic
application
target
products
construct
valuable
compounds.
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
22(37), С. 7537 - 7548
Опубликована: Янв. 1, 2024
With
the
development
of
organic
electrochemical
synthesis,
a
series
notable
achievements
have
been
made
in
Ritter
amination
reactions,
which
enriched
methods
available
for
constructing
C-N
bonds.
In
this
review,
reactions
are
introduced
based
on
classification
reaction
substrates,
including
olefins,
aromatics,
alkylbenzenes,
and
less
reported
carboxylic
acids,
ketones,
sulfides,
alkanes.
The
application
technology
to
has
improved
harsh
conditions
traditional
extended
substrate
scope
structural
diversity
products.
value
synthesis
also
further
expanded.
Journal of Heterocyclic Chemistry,
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 3, 2023
Abstract
The
synthesis
of
a
new
series
the
tetracyclic
13‐arylisoquinolino[2,1‐
]quinoline‐12‐carbonitrile
has
been
accomplished
using
straightforward
and
efficient
method.
novel
compounds
were
obtained
via
Hantzsch‐like
reaction
varieties
aldehydes
with
2‐(isoquinolin‐1‐yl)acetonitrile
dimedone.
structures
verified
elemental
spectroscopic
data.
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(9), С. 6545 - 6554
Опубликована: Апрель 17, 2024
A
versatile
reaction
between
N-tosylhydrazones
and
carboxylic
acids
to
access
bisamides
is
reported.
This
metal-free,
room-temperature
was
catalyzed
by
TBAI,
while
TBHP
served
as
the
oxidant.
Broad
substrate
scope
good
functional
group
tolerance
are
key
features
of
strategy.
Subsequent
intramolecular
N-arylation
suitably
substituted
readily
afforded
functionalized
3-indazolones.
