Copper-Catalyzed Regio- and Enantioselective Protoboration of Allenyl Sulfones to Access Chiral Allylic Sulfones
Peidong Sun,
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Xiaomei Kong,
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Huang Jing-wen
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et al.
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
An
efficient
method
for
copper-catalyzed
asymmetric
protoboration
of
allenyl
sulfones
with
bis(pinacolato)diboron
was
developed,
providing
chiral
allylic
high
efficiency
and
excellent
enantioselectivity.
Notably,
the
directing
effect
sulfone
group
plays
a
pivotal
role
in
achieving
both
regioselectivity
Language: Английский
Enantioselective Synthesis of Allylic Sulfones via Rhodium-Catalyzed Direct Hydrosulfonylation of Allenes and Alkynes
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(25), P. 16996 - 17002
Published: June 14, 2024
A
highly
regio-
and
enantioselective
hydrosulfonylation
using
commercially
available
sodium
sulfinates
is
reported,
providing
the
first
direct
asymmetric
rhodium-catalyzed
of
allenes/alkynes
to
synthesize
chiral
allylic
sulfones.
Ligand
screening
studies
demonstrated
indispensable
role
C1-symmetric
P,N-ligand
(Rax,S,S)-StackPhim
for
achieving
both
high
regioselecitivity
(>20:1)
enantioselectivity
(up
97%
ee).
Notably,
operationally
simple
method
mild
conditions
allow
rapid
preparation
sulfones
with
a
wide
scope
functional
groups.
Moreover,
use
tert-butyldimethylsilyloxymethanesulfinate
enables
collective
synthesis
various
sulfone
derivatives
after
transformations
protected
hydroxymethyl
product.
Language: Английский
Palladium-Catalyzed Decarboxylative Allylic Sulfonylation of Vinyloxazolidine-2,4-diones: Synthesis of γ-Sulfonyl-α,β-unsaturated Amides
The Journal of Organic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
A
palladium-catalyzed
decarboxylative
allylic
sulfonylation
reaction
of
vinyloxazolidine-2,4-diones
with
inexpensive
and
readily
available
sodium
sulfinates
as
reagents
has
been
developed.
Under
the
catalysis
Pd(PPh3)4,
a
wide
range
γ-sulfonyl-α,β-unsaturated
amides
can
be
synthesized
in
good
to
excellent
yields.
The
developed
protocol
is
characterized
by
exclusive
regioselectivity,
mild
conditions,
broad
substrate
scope,
functional
group
tolerance,
suitable
for
gram-scale
synthesis.
Language: Английский
Pd-Catalyzed Aerobic Synthesis of Allylic Sulfones from Allylic Alcohols and Sulfonyl Hydrazines in Water
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
89(14), P. 10344 - 10348
Published: July 10, 2024
A
mild
and
green
synthesis
of
allylic
sulfones
from
alcohols
sulfonyl
hydrazines
was
developed
in
water
media.
The
simple
commercially
available
Pd(PPh
Language: Английский
Electrochemical oxidative C H sulfonylation of thiophenes: Site-selective access to 2-arylsulfonylthiophenes
Zhijun Yang,
No information about this author
Zhi Qiao,
No information about this author
Xianglin Yu
No information about this author
et al.
Tetrahedron Letters,
Journal Year:
2024,
Volume and Issue:
147, P. 155208 - 155208
Published: July 22, 2024
Language: Английский
Electrochemical Oxidative C–H Sulfonylation of Thiophenes: Site-Selective Access to 2-Arylsulfonylthiophenes
Zhijun Yang,
No information about this author
Zhi Qiao,
No information about this author
Xianglin Yu
No information about this author
et al.
Published: Jan. 1, 2024
Language: Английский
Aminosulfonylation of Rhodium Carbene via Ylide Formation and 1,4-Sulfonyl Rearrangement
Jiahui Su,
No information about this author
Meirong Huang,
No information about this author
Zichun Yan
No information about this author
et al.
Organic Letters,
Journal Year:
2024,
Volume and Issue:
26(44), P. 9592 - 9597
Published: Oct. 29, 2024
We
report
here
the
use
of
pyridin-2-yl
benzenesulfonates
as
sulfonylation
reagents
in
a
difunctionalization
reaction
based
on
oxy-pyridinium
ylide
chemistry,
providing
an
effective
protocol
for
installation
both
sulfonyl
group
and
pyridone
moiety
into
one
molecule.
Density
functional
theory
(DFT)
calculations
disclose
that
process
might
proceed
through
sequential
metal-bound
formation,
keto-enol
tautomerism,
migratory
rearrangement
group.
Language: Английский
Sulfination of Unactivated Allylic Alcohols via Sulfinate–Sulfone Rearrangement
Yan Wang,
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Guangming Wu,
No information about this author
Kaiyu Yan
No information about this author
et al.
Organic Letters,
Journal Year:
2023,
Volume and Issue:
25(49), P. 8895 - 8900
Published: Dec. 7, 2023
A
dehydrative
cross-coupling
of
unactivated
allylic
alcohols
with
sulfinic
acids
was
achieved
under
catalyst-free
conditions.
This
reaction
proceeded
via
allyl
sulfination
and
concomitant
sulfinate-sulfone
rearrangement.
Various
sulfones
could
be
obtained
in
good
to
excellent
yields
water
as
the
only
byproduct.
study
expands
synthetic
toolbox
for
constructing
sulfone
molecules.
Language: Английский