Visible-Light-Mediated Synthesis of Thioesters Using Thiocarboxylic Acid as the Dual Reagent
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(7), С. 4607 - 4618
Опубликована: Март 21, 2024
We
have
developed
a
visible-light-driven
method
for
thioester
synthesis
that
relies
on
the
unique
dual
role
of
thiobenzoic
acids
as
one-electron
reducing
agents
and
reactants
leading
to
formation
sulfur
radical
species.
This
synthetic
process
offers
wide
scope,
accommodating
various
thioacid
thiol
substrates
without
need
photocatalyst.
Язык: Английский
Photo‐Induced Generation of Oxygenated Quaternary Centers via EnT Enabled Singlet O2 Addition to C3‐Maleimidated Quinoxaline: A Reagent‐Less Approach
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(45)
Опубликована: Май 8, 2024
Demonstrated
here
is
an
external
photo-sensitizer-free
(auto-sensitized)
singlet
oxygen-enabled
solvent-dependent
tertiary
hydroxylation
and
aryl-alkyl
spiro-etherification
of
C3-maleimidated
quinoxalines.
Such
"reagent-less"
photo-oxygenation
at
Csp
Язык: Английский
Electron-donor-acceptor (EDA) complex-driven regioselective vicinal and oxidative geminal functionalization of alkynes†
Chemical Communications,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
A
visible-light-initiated
electron-donor-acceptor
(EDA)
complex-driven
regioselective
vicinal
and
oxidative
geminal
thiosulfonylation
of
alkynes
is
presented.
Organic
thiosulfonates
act
as
an
acceptor,
producing
either
sulfonyl
(RSO
Язык: Английский
Pushing Boundaries: What’s Next in Metal-Free C–H Functionalization for Sulfenylation?
Topics in Current Chemistry,
Год журнала:
2024,
Номер
382(2)
Опубликована: Апрель 12, 2024
Язык: Английский
Nickel(II)‐Catalyzed Reductive Coupling of Xanthate Esters with Sulfur‐Containing and Selenium‐Containing Compounds: Synthesis of Unsymmetric Sulfides and Selenides
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 3, 2024
Comprehensive
Summary
Unsymmetric
sulfides
and
selenides
have
great
applications
in
the
pharmaceutical
field.
Herein,
we
describe
reductive
coupling
reaction
of
xanthate
esters
with
sulfur‐containing
selenium‐containing
compounds
(thio(seleno)sulfonates
disulfides(selenides))
under
nickel‐catalyzed
condition.
It
provides
a
mild
effective
method
for
synthesis
unsymmetric
which
has
advantages
conditions,
high
yields
wide
range
substrates.
Язык: Английский
Non-directed Oxidative Annulation of 2-Arylindazoles with Electron Deficient Olefins via Visible Light Photocatalysis
Chemical Communications,
Год журнала:
2024,
Номер
60(75), С. 10402 - 10405
Опубликована: Янв. 1, 2024
A
new
visible-light-mediated
non-directed
oxidative
annulation
between
2-arylindazoles
and
electron-deficient
olefins
using
commercially
available
piperidine-1-sulfonyl
chloride
as
the
radical
precursor
to
afford
fused
5,6-dihydroindazolo[2,3-
Язык: Английский
Diverse reactivity of maleimides in polymer science and beyond
Polymer International,
Год журнала:
2024,
Номер
74(4), С. 296 - 306
Опубликована: Ноя. 5, 2024
Abstract
Maleimides
are
remarkably
versatile
functional
groups,
capable
of
participating
in
homo‐
and
copolymerizations,
Diels–Alder
(photo)cycloadditions,
Michael
additions,
other
reactions.
Their
reactivity
has
afforded
materials
ranging
from
polyimides
with
high
upper
service
temperatures
to
hydrogels
for
regenerative
medicine
applications.
Moreover,
maleimides
have
proven
be
an
enabling
chemistry
pharmaceutical
development
bioconjugation
via
straightforward
modification
cysteine
residues.
To
exert
spatiotemporal
control
over
reactions
maleimides,
multiple
approaches
been
developed
photocage
nucleophiles,
dienes,
dipoles.
Additionally,
further
substitution
the
maleimide
alkene
(e.g.
monohalo‐,
dihalo‐,
thio‐,
amino‐
methyl‐maleimides,
among
substituents)
confers
tunable
dynamicity,
as
well
responsive
mechanical
optical
properties.
In
this
mini‐review,
we
highlight
diverse
functionality
underscoring
their
notable
impact
polymer
science.
This
moiety
related
heterocycles
will
play
important
role
future
innovations
chemistry,
biomedical,
research.
©
2024
The
Author(s).
Polymer
International
published
by
John
Wiley
&
Sons
Ltd
on
behalf
Society
Chemical
Industry.
Язык: Английский
Solvent Dictated Organic Transformations
Chemistry - An Asian Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 7, 2024
Solvent
plays
an
important
role
in
many
chemical
reactions.
The
C-H
activation
has
been
one
of
the
most
powerful
tools
organic
synthesis.
These
reactions
are
often
assisted
by
solvents
which
not
only
provide
a
medium
for
but
also
facilitate
reaching
to
product
stage.
solvent
helps
reaction
profile
both
chemically
and
energetically
reach
targeted
product.
Organic
transformations
via
from
assistance
perspective
discussed
this
review.
Various
such
as
tetrahydrofuran
(THF),
MeCN,
dichloromethane
(DCM),
dimethoxyethane
(DME),
1,2-dichloroethane
(1,2-DCE),
dimethylformamide
(DMF),
dimethylsulfoxide
(DMSO),
isopropyl
nitrile
(
Язык: Английский
Purple‐Light Promoted Thiol‐ene Reaction of Alkenes
Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
365(24), С. 4623 - 4633
Опубликована: Ноя. 2, 2023
Abstract
Here
we
present
a
catalyst‐free
protocol
for
the
purple
light‐mediated
anti
‐Markovnikov
functionalization
of
alkenes
with
thiols.
Crucial
to
generation
thiyl
radical
was
formation
key
photo‐active
complex.
More
than
30
thioether
products
were
obtained,
demonstrating
tolerance
towards
different
functional
groups
and
scalability
up
5
mmol
alkene.
Two
reaction
conditions
have
been
developed,
varying
both
solvent
amount
thiol.
Depending
on
alkene
structure,
water
can
be
used
as
an
alternative
dichloromethane
solvent,
thus
increasing
sustainability
whole
process.
Язык: Английский