Advanced Synthesis & Catalysis,
Journal Year:
2023,
Volume and Issue:
365(10), P. 1693 - 1698
Published: May 6, 2023
Abstract
A
metal‐free
radical
multicomponent
bicyclization
of
heteroatom‐linked
1,7‐diynes
with
aryl
diazonium
tetrafluoroborates
and
DABCO‐bis(sulfurdioxide)
(DABSO)
is
reported,
enabling
annulative
SO
2
insertion
access
to
produce
two
types
skeletally
diverse
tricyclic
sulfones,
namely,
thieno[3,4‐
c
]quinoline
2,2‐dioxides
]chromene
2,2‐dioxides,
moderate
good
yields
by
simply
tuning
the
linkers
1,7‐diynes.
This
protocol
demonstrates
remarkable
compatibility
regarding
N
‐
O
‐linked
different
substitution
patterns
tetrafluoroborates.
magnified
image
Organic & Biomolecular Chemistry,
Journal Year:
2023,
Volume and Issue:
21(13), P. 2822 - 2827
Published: Jan. 1, 2023
We
report
a
highly
efficient
one-pot,
three-component
strategy
for
the
construction
of
alkyl-alkyl
sulfones
through
photoinduced
TBADT-catalyzed
C(sp3)-H
sulfonylation
unactivated
hydrocarbon
compounds.
A
wide
range
commercially
available
compounds
and
bioactive
molecules
can
be
successfully
applied
to
catalytic
system,
affording
corresponding
in
good
excellent
yields
(>50
examples,
up
87%
yield).
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(15), P. 4275 - 4283
Published: Jan. 1, 2024
A
copper-catalyzed
enantioselective
four-component
reaction
via
the
insertion
of
sulfur
dioxide
toward
synthesis
chiral
sulfones
bearing
an
all-carbon
quaternary
stereocenter
at
β
position
is
reported.
Advanced Synthesis & Catalysis,
Journal Year:
2023,
Volume and Issue:
365(4), P. 555 - 567
Published: Jan. 18, 2023
Abstract
A
direct,
visible‐light‐mediated,
radical‐cascade
addition/sulfonylation/cyclization
reaction
with
DABCO
⋅
(SO
2
)
and
thianthrenium
salts
is
reported
herein.
This
protocol
provides
operationally‐convenient
access
to
various
sulfonated
functionalized
indole
[2,1‐a]
isoquinolines
under
mild
conditions.
transformation
features
high
functional‐group
tolerance,
operational
ease,
broad
substrate
scope.
Preliminary
studies
reveal
that
the
method
undergoes
a
radical
pathway.
magnified
image
Advanced Synthesis & Catalysis,
Journal Year:
2023,
Volume and Issue:
365(10), P. 1693 - 1698
Published: May 6, 2023
Abstract
A
metal‐free
radical
multicomponent
bicyclization
of
heteroatom‐linked
1,7‐diynes
with
aryl
diazonium
tetrafluoroborates
and
DABCO‐bis(sulfurdioxide)
(DABSO)
is
reported,
enabling
annulative
SO
2
insertion
access
to
produce
two
types
skeletally
diverse
tricyclic
sulfones,
namely,
thieno[3,4‐
c
]quinoline
2,2‐dioxides
]chromene
2,2‐dioxides,
moderate
good
yields
by
simply
tuning
the
linkers
1,7‐diynes.
This
protocol
demonstrates
remarkable
compatibility
regarding
N
‐
O
‐linked
different
substitution
patterns
tetrafluoroborates.
magnified
image
