Palladium-Catalyzed Tandem Reaction of β-Ketonitriles with Arylboronic Acids and Dimethyl Sulfoxide: Application to Multicomponent Synthesis of Poly-Substituted Pyridines
Ge Zeng,
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Shi-Yan Wang,
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Weiping Han
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et al.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 9, 2025
The
Pd-catalyzed
multicomponent
tandem
reaction
of
β-ketonitriles,
arylboronic
acids
and
DMSO
was
efficiently
developed,
enabling
access
to
a
variety
poly
substituted
pyridines.
protocol
shows
excellent
chemoselectivity,
generating
nicotinonitriles
or
symmetrical
tetrasubstituted
pyridines
under
different
conditions
by
cyclization
enaminone
intermediates
with
β-ketonitriles
enolates,
respectively,
does
not
require
extra
ammonias.
This
method
boasts
notable
advantages,
such
as
the
use
commercially
available
easily
prepared
substrates,
simple
conditions,
broad
substrate
scope,
good
functional
group
tolerance.
Language: Английский
Facile Approach to Diverse Diarylmethane Scaffolds via DBU-Catalyzed 1,6-Addition Reaction: Discovery of an Antibacterial Agent
Pingda Ren,
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Yifei Li,
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Shi-Yan Wang
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et al.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
Herein,
a
DBU-catalyzed
1,6-Michael
addition
of
para-quinone
methides
(p-QMs)
under
mild
reaction
conditions
with
high
efficiency
(turnover
number
up
to
103)
and
good
excellent
yields
is
reported.
The
transformation
proceeds
smoothly
range
nucleophiles,
providing
diverse
diarylmethane
scaffolds
efficiency.
Mechanistic
studies
revealed
that
DBU
an
proton
acceptor
donor
can
promote
the
methanol
p-QMs.
A
preliminary
investigation
was
also
conducted
antibacterial
properties
products.
Language: Английский
Strain-Releasing Hydrogenation of Donor–Acceptor Cyclopropanes and Cyclobutanes via Electrochemical Site Selective Carbonyl Reduction
Nakshatra Banerjee,
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Rakesh Kumar,
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Biswadeep Manna
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et al.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
An
acid
or
hydrogen
gas-free
electrochemical
protocol
is
established
for
the
hydrogenation
of
strained
rings
(cyclopropane
and
cyclobutane)
at
room
temperature
atmospheric
pressure.
The
mechanistic
study
revealed
that
reaction
was
initiated
via
reduction
carbonyl
group.
methodology
highly
specific
toward
such
as
cyclopropane
cyclobutane,
which
exhibit
broad
functional
group
tolerance.
Language: Английский
Electro-promoted radical-radical cross-coupling reaction to synthesize sulfonamides
Hang Gong,
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Hongmei Fu,
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Chao Lü
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et al.
Tetrahedron,
Journal Year:
2024,
Volume and Issue:
168, P. 134315 - 134315
Published: Oct. 20, 2024
Language: Английский
Precisive Incorporation of Multiple Nitrogen Sources into Benzoxazoles via an Iodine-Mediated Electrochemical Four-Component Reaction
Tong Li,
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Kai Li,
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Jiajia Yu
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et al.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 11, 2024
An
iodine-mediated
electrochemical
four-component
reaction
was
developed
to
construct
aromatic
C-N
bonds
by
making
use
of
a
simple
nitrogen
source,
such
as
NH
Language: Английский