Intermolecular amination of Ethyl Benzo ylacetate via photocatalytic nitrene transfer reactions
Organic Chemistry Frontiers,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
This
study
reports
a
photocatalytic
nitrene
transfer
reaction
of
1,3-dicarbonyl.
A
broad
range
substrates
and
iodinanes
are
shown,
enabling
direct
C–H
functionalization
without
the
need
for
pre-formed
nucleophilic
enolate
equivalents.
Язык: Английский
g-C3N4-Based Heterogeneous Photocatalyzed Synthesis and Evaluation of Antitumor Activities of Fluoroalkylated 4H-Pyrido[1,2-a]pyrimidin-4-ones
The Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
The
first
example
of
heterogeneous
photoredox-catalyzed
fluoroalkylation
4H-pyrido[1,2-a]pyrimidin-4-ones
has
been
developed.
With
low-cost
commercial
g-C3N4
as
the
recyclable
photocatalyst
and
cheap
sodium
fluoroalkyl
sulfonates
source,
a
variety
fluoroalkylated
pyridopyrimidinones
were
constructed
in
moderate
to
high
yields.
present
reaction
can
be
easily
scaled
up
with
good
efficiency,
catalytic
system
reused
5
times
slight
loss
activities.
Furthermore,
biological
activity
synthesized
compounds
was
preliminarily
investigated.
Язык: Английский
Visible‐Light‐Induced C−H Amidation of (Hetero)arenes with Hypervalent Iodine(III) Reagents
Asian Journal of Organic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 10, 2025
Abstract
A
visible‐light‐promoted
C−H
amidation
of
(hetero)arenes
with
hypervalent
iodine
reagents
has
been
successfully
achieved
good
yields.
The
high
efficiency,
broad
substrate
range
and
functional
group
compatibility
demonstrated
the
utility
method.
Moreover,
this
protocol
was
suitable
for
late‐stage
functionalization
natural
products.
Mechanistic
studies
have
shown
that
N‐centred
saccharin
radical
mediates
arenes.
Язык: Английский
visible light-induced recyclable g-C3N4 catalyzed C-H/N-H cross-dehydrogenative coupling amination of Quinoxalin-2(1H)-ones
Tetrahedron,
Год журнала:
2025,
Номер
unknown, С. 134707 - 134707
Опубликована: Май 1, 2025
Язык: Английский
AgOTf‐Catalysed Regioselective C1‐Amination of Pyrrolo[1,2‐a]quinoxaline With Azodicarboxylates
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(6)
Опубликована: Май 19, 2025
ABSTRACT
AgOTf‐catalysed
regioselective
C1‐amination
of
pyrrolo[1,2‐
a
]quinoxaline
has
been
developed.
The
reaction
allowed
the
use
various
]quinoxalines
and
azodicarboxylates
as
coupling
partners
to
afford
C1‐aminated
products
with
good
excellent
yields.
synthetic
strategy
showed
regioselectivity,
functional
group
tolerance
well
gram‐scale
synthesis.
amination
were
further
modified
furnish
structurally
diverse
compounds.
Язык: Английский
Recent Advances in Photo-promoted Generalized C3-H Alkylation of Quinoxalin-2(1H)-ones
Organic & Biomolecular Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Recent
advances
in
the
photo-promoted
C3–H
alkylation
reaction
of
quinoxalin-2(1
H
)-ones
with
different
agents.
Язык: Английский
Photoinduced β-fragmentation for efficient pyridine alkylation via N-alkoxypyridinium salts
Organic Chemistry Frontiers,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
We
established
a
mild
and
atom-economical
photocatalytic
strategy
for
direct
pyridine
alkylation
via
β-fragmentation
of
N
-alkoxypyridinium
salts,
serving
dually
as
alkyl
radical
precursors
sources.
Язык: Английский
Nd@g-C3N4 dual-functional photosynthesis and antitumor activities of 3-fluoroalkylated quinoxalin-2(1H)-ones
Qiong-Hui Peng,
Ningbo Li,
Jia-Cheng Hou
и другие.
Chinese Chemical Letters,
Год журнала:
2025,
Номер
unknown, С. 111402 - 111402
Опубликована: Май 1, 2025
Язык: Английский
EDA Complex-Mediated Aerobic Three-Component CDC Reactions of Quinoxalinones under Visible-Light Irradiation
Organic Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Июнь 2, 2025
A
visible-light-induced
Minisci-type
three-component
aerobic
cross-dehydrogenative
coupling
(CDC)
reaction
of
quinoxalinones
with
styrenes
and
acetophenones
is
described.
The
catalytic
electron
donor-acceptor
(EDA)
complexation
TMSCl
found
to
be
the
key
for
oxygen
activation,
which
initiates
oxidative
radical
formation
under
photocatalyst-free
conditions.
This
protocol
provides
facile
efficient
access
structurally
valuable
highly
functionalized
generally
high
chemoselectivity
moderate
good
yields.
Язык: Английский