Visible-light induced direct C(sp3)–H functionalization: recent advances and future prospects
Organic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(18), С. 5278 - 5305
Опубликована: Янв. 1, 2024
This
review
summarizes
the
latest
methodological
advances
in
photocatalytic
C(sp
3
)–H
functionalization,
with
a
particular
emphasis
on
formation
of
C–P,
C–B,
C–S
bonds,
etc
.,
and
some
prominent
efforts
asymmetric
C–H
functionalization.
Язык: Английский
Electrophotocatalysis Versus Indirect Electrolysis: Electrochemical Selenocyclization of 3‐Aza‐1,5‐dienes Facilitated by Energy Transfer, Direct Photolysis or N‐Hydroxyphthalimide
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(36)
Опубликована: Апрель 23, 2024
Three
hybrid
electrochemical
protocols,
which
involve
the
energy
transfer,
direct
photolysis
and
N-hydroxyphthalimide
catalyst,
respectively,
are
presented
for
selenylation/cyclization
of
fragile
substrates
3-aza-1,5-dienes
with
diorganyl
diselenides
to
afford
3-selenomethyl-4-pyrrolin-2-ones.
The
two
electrophotocatalytic
reactions
indirect
electrolysis
one
both
regioselective
external-oxidant-
transition-metal-free,
associated
a
broad
substrate
scope
high
Se-economy,
all
three
methods
amenable
gram-scale
syntheses,
late-stage
functionalizations,
sunlight-induced
experiments
all-solar-driven
syntheses.
Язык: Английский
Recent developments for the synthesis of the dihydroisoquinolin-1(2H)-ones via cyclization of N-allylbenzamides
Tetrahedron,
Год журнала:
2025,
Номер
unknown, С. 134497 - 134497
Опубликована: Янв. 1, 2025
Язык: Английский
α-Thiocyanation of Enol Acetates and Sodium Thiocyanate under Electrochemical Conditions
Chinese Journal of Organic Chemistry,
Год журнала:
2025,
Номер
45(1), С. 189 - 189
Опубликована: Янв. 1, 2025
Язык: Английский
Electroreductive Carboxylation of Benzylphosphonium salts with CO2 Through the Cleavage of the C(sp3)-P Bond
Fen Han,
Fenfen Xie,
Mengyun Yin
и другие.
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
22(28), С. 5724 - 5728
Опубликована: Янв. 1, 2024
Herein,
a
novel
electroreductive
carboxylation
of
benzylphosphine
salts
with
CO
2
through
cleavage
the
C(sp
3
)-P
bond
was
reported
under
conditions
without
redox
reagents
and
noble
metal
catalysts.
Язык: Английский
Organophotocatalytic Regioselective Silylation/Germylation and Cascade Cyclization of N-Alkenyl α-CF3 Acrylamides: Access to Densely Functionalized 4-Pyrrolin-2-ones
Organic Letters,
Год журнала:
2024,
Номер
26(43), С. 9269 - 9275
Опубликована: Окт. 21, 2024
We
report
an
organophotoredox-catalyzed
silylation/germylation
cascade
cyclization
of
Язык: Английский
Photocatalytic Regioselective Tandem Cyclization Protocol to Trifluoromethylated Pyrrolidones
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 21, 2024
Abstract
A
new
environmentally
friendly
and
efficient
strategy
for
preparing
trifluoromethylated
pyrrolidones
has
been
developed.
The
process
involves
using
visible
light
to
induce
radical
cyclization
of
1,5‐dienes
with
CF
3
SO
2
Na,
resulting
in
excellent
regioselectivity.
This
method
uses
less
expensive
easy‐to‐store
trifluoromethylation
reagents,
making
it
an
attractive
option.
Additionally,
the
can
be
easily
modified
preliminary
mechanistic
studies
have
presented.
Язык: Английский
DABCO‐Mediated Photoelectrochemical Three‐Component Sulfonocyclization of 3‐Aza‐1,5‐dienes
Lu-Cai Ding,
Gui-Hong Yang,
Li Luo
и другие.
Chinese Journal of Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 2, 2024
Comprehensive
Summary
Herein,
we
report
a
rare
example
of
three‐component
net‐oxidative
sulfonylation
SO
2
surrogate
with
an
oxidatively
activated
radical
precursor
under
mild
and
metal‐
external‐oxidant‐free
conditions.
The
mildness
sustainability
the
reaction
are
enabled
by
photoelectrocatalysis,
3‐aza‐1,5‐dienes,
organotrifluoroborates
1,4‐diazabicyclo[2.2.2]octane
bis(sulfur
dioxide)
adduct
(DABSO)
undergo
sulfonylative
cyclization
to
afford
sulfono
4‐pyrrolin‐2‐ones
in
atom‐economical
manner
broad
substrate
scope
good
functional‐group
tolerance.
protocol
is
amenable
late‐stage
diversification
complex
molecular
architectures
as
well
gram‐scale
synthesis.
Sunlight
could
be
used
light
source,
conducted
all‐solar
mode
using
commercially
available
photovoltaic
panel
generate
electricity
situ
.
Mechanistic
studies
reveal
that
generated
(DABCO),
which
was
generally
innocent
previous
reactions,
functions
electron
shuttle
between
photocatalytic
cycle
reactants.
Язык: Английский
Electrophotocatalytic Thiocyanation and Sulfonylation Cyclization of Unactivated Alkenes
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 18, 2024
We
report
an
electrophotocatalytic
process
that
enables
the
thiocyanation
and
sulfonylation/cyclization
of
alkenes.
It
is
applicable
to
a
wide
range
unactivated
alkenes,
using
inexpensive
photocatalyst
2,4,6-triphenylpyrylium
tetrafluoroborate
(TPPT)
produce
diverse
array
heterocycles
containing
sulfonyl
thiocyano
groups
with
good
functional
group
tolerance.
The
protocol
operates
under
mild,
chemical
oxidant-
transition-metal-free,
broad
scope
substrates.
Preliminary
mechanistic
studies
suggest
reaction
involves
combination
electrolysis
reductive
quenching
photocatalytic
cycle
TPPT.
Язык: Английский