Photoredox streamlines electrocatalysis: photoelectrosynthesis of polycyclic pyrimidin-4-ones through carbocyclization of unactivated alkenes with malonates
Minglin Tao,
No information about this author
Feng Qin,
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Kaixing Gong
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et al.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(7), P. 4199 - 4208
Published: Jan. 1, 2024
A
new
photoelectrocatalytic
mode
permits
the
synthesis
of
polycyclic
pyrimidin-4-ones
through
dehydrogenative
cyclization
malonates
with
unactivated
alkenes.
Language: Английский
Electrochemical Promoted Three-Component Trifluoromethylation/Spirocyclization Reaction of N-Arylsulfonylacrylamides to 4-Azaspiro[4.5]decanes
Zhi-Long Lei,
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Tai-Chen Liu,
No information about this author
Fei‐Hu Cui
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et al.
Organic Letters,
Journal Year:
2023,
Volume and Issue:
25(32), P. 6001 - 6005
Published: Aug. 7, 2023
An
electrochemical
facilitated
three-component
trifluoromethylation/spirocyclization
reaction
of
N-(arylsulfonyl)acrylamides,
CF3SO2Na,
and
H2O
has
been
developed.
Without
the
requirement
chemical
oxidants,
a
number
unexplored
trifluoromethylated
4-azaspiro[4.5]decanes
were
obtained
in
satisfactory
yields
under
mild
conditions.
This
work
provides
new
synthetic
strategy
for
fluorine-containing
spirocyclic
compounds
shows
perspective
reactivity
study
N-(arylsulfonyl)acrylamides.
Language: Английский
Electrochemical [3+3] Annulation of Phenol and Hydrazone: Synthesis of 1,3,4-Oxadiazines
Jiahui Zhang,
No information about this author
Yang‐Yang Hu,
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Yuge Ran
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et al.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
A
novel
[3+3]
cyclization
reaction
between
phenol
and
hydrazone
was
successfully
developed
under
electrochemically
driven
conditions.
This
provided
access
to
a
diverse
array
of
1,3,4-oxadiazinane
compounds
in
consistently
high
yields,
reaching
up
87%.
Notably,
the
exhibited
remarkable
tolerance
toward
broad
spectrum
both
substrates,
underscoring
its
versatility.
Moreover,
protocol
distinguished
itself
by
exceptional
atom
step
economy,
facilitating
efficient
construction
functionalized
1,3,4-oxadiazines.
The
synthetic
utility
this
approach
further
exemplified
scalability,
as
demonstrated
gram-scale
reactions,
substrate
scope.
Language: Английский
The Aza-Diels-Alder Reaction Between Cyclic Imine and Aza-ortho-quinone Methide Precursor to Access Polycyclic-fused Tetrahydroquinazoline
Tetrahedron,
Journal Year:
2025,
Volume and Issue:
unknown, P. 134665 - 134665
Published: April 1, 2025
Language: Английский
Electrosynthesis of Quinoxalines via Intermolecular Cyclization/Dehydrogenation of Ketones with o-Phenylenediamines
Lei Liu,
No information about this author
Tao Yi,
No information about this author
Jiahui Zhang
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et al.
Synlett,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 5, 2024
Abstract
In
this
study,
we
proposed
a
novel
electrochemical
dehydrogenative
synthetic
method
for
preparing
2-substituted
quinoxalines
by
intermolecular
cyclization
of
aryl
alkyl
ketones
and
o-phenylenediamines.
This
gave
various
in
yields
ranging
from
35%
to
71%.
protocol
employs
mild
reaction
conditions
offers
moderate
excellent
yields,
wide
substrate
scope,
broad
functional-group
compatibility.
Furthermore,
late-stage
functionalization
the
scope
demonstrated
utility
protocol.
Language: Английский
Visible-light promoted radical cascade cyclization of 3-allyl-2-arylquinazolinones for the synthesis of phosphorylated dihydroisoquinolino[1,2-b]quinazolinones
Jun Huang,
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Caijin Ban,
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J. J. Qin
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et al.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(62), P. 8119 - 8122
Published: Jan. 1, 2024
A
novel
visible-light
promoted
metal-free
radical
cascade
cyclization
reaction
has
been
developed
with
3-allyl-2-arylquinazolinones
as
a
new
class
of
acceptor.
This
photocatalytic
protocol
represents
an
efficient
approach
to
construct
phosphorylated
dihydroisoquinolino[1,2-
Language: Английский
Photoredox/HAT-Catalyzed Intramolecular Hydrocyclization of Alkenes toward 2,3-Fused Quinazolinones and Dihydroquinazolinones
Dong Li,
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Xiaoqing Wang,
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Yanhui Gou
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et al.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
New
photochemical
approaches
to
2,3-fused
quinazolinones
and
dihydroquinazolinones
are
disclosed.
The
intramolecular
hydrocyclization
proceeds
in
moderate
excellent
yields
across
diverse
alkenes
with
high
regioselectivity
diastereocontrol.
Mechanistic
studies
indicated
that
the
radical
cascade
processes
involve
thiophenol
acting
as
single-electron
transfer
hydrogen
atom
reagents.
success
of
gram-scale
synthesis
proves
strategy
can
be
used
for
practical
applications.
Language: Английский
De novo synthesis of 6-6-5 fused-systems through electrochemical decarboxylation and radical domino additions
Chengcheng Yuan,
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Guanru Liu,
No information about this author
Wenjing Guan
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et al.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(19), P. 10308 - 10313
Published: Jan. 1, 2024
An
oxidant
and
quaternary
ammonium
salt-free
electrosynthesis
of
6-6-5
fused
systems
was
developed
with
excellent
atom
step
economy.
Language: Английский
Unveiling the role of Lewis bases in cascade furan Diels–Alder cycloadditions: asymmetric synthesis of polycyclic quinazolinones
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(19), P. 5488 - 5494
Published: Jan. 1, 2024
A
Lewis
base
catalyzed
asymmetric
substitution/IMDAF
reaction
for
the
synthesis
of
polycyclic
quinazolinones
has
been
developed.
The
key
role
in
IMDAF
process
unveiled.
Language: Английский
Advances in Self-Organized Total Synthesis of Natural Products
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
In
this
review,
we
account
for
the
definition,
delimitation,
and
categorization
of
self-organized
total
synthesis
then
elucidate
a
comprehensive
understanding
synthetic
strategy
based
on
our
intensive
explorations.
Language: Английский