Chinese Journal of Organic Chemistry,
Journal Year:
2021,
Volume and Issue:
41(12), P. 4588 - 4588
Published: Jan. 1, 2021
Selenium-containing
heterocycles
are
a
kind
of
important
organic
molecules,
which
widely
used
in
medicine,
agrochemicals,
materials
and
other
fields.Therefore,
the
introduction
selenium
atom
into
molecules
is
great
significance
synthetic
chemistry.Visible
light
electrochemical
technology
one
green
sustainable
synthesis
methods,
has
opened
up
broad
application
prospects
fields
bifunctionalization
cyclization
unsaturated
bonds
direct
functionalization
C-H
bonds.In
recent
years,
development
novel
reaction
using
photoelectric
to
drive
selenization
attracted
much
attention.Therefore,
this
paper
describes
electrochemical-driven
visible-light-induced
reactions
selenium-containing
heterocycles,
discusses
applicable
scope
mechanism
some
reactions.
Chemical Science,
Journal Year:
2022,
Volume and Issue:
13(9), P. 2783 - 2788
Published: Jan. 1, 2022
Despite
indisputable
progress
in
the
development
of
electrochemical
transformations,
electrocatalytic
annulations
for
synthesis
biologically
relevant
three-dimensional
spirocyclic
compounds
has
as
yet
not
been
accomplished.
In
sharp
contrast,
herein,
we
describe
palladaelectro-catalyzed
C-H
activation/[3
+
2]
spiroannulation
alkynes
by
1-aryl-2-naphthols.
Likewise,
a
cationic
rhodium(iii)
catalyst
was
shown
to
enable
electrooxidative
[3
spiroannulations
via
formal
C(sp3)-H
activations.
The
versatile
featured
broad
substrate
scope,
employing
electricity
green
oxidant
lieu
stoichiometric
chemical
oxidants
under
mild
conditions.
An
array
enones
and
diverse
spiropyrazolones,
bearing
all-carbon
quaternary
stereogenic
centers
were
thereby
accessed
user-friendly
undivided
cell
setup,
with
molecular
hydrogen
sole
byproduct.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(9), P. 3543 - 3548
Published: Jan. 1, 2023
An
electrochemical
electrophilic
bromination/spirocyclization
of
N
-benzyl-acrylamides
to
brominated
2-azaspiro[4.5]decanes
with
2-bromoethan-1-ol
as
the
brominating
reagent
has
been
developed.
Chemistry - An Asian Journal,
Journal Year:
2023,
Volume and Issue:
18(9)
Published: March 15, 2023
Electrochemical
dearomative
spirocyclization
serves
as
a
green
and
sustainable
approach
to
convert
the
flat,
two-dimension
aromatic
feedstock
into
value-added
three-dimension
spirocyclic
architectures.
This
review
highlights
recent
advances,
emphasizes
mechanistic
discussions,
showcases
synthetic
applications
of
this
emerging
versatile
powerful
transformation.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(8), P. 3111 - 3116
Published: Jan. 1, 2023
A
general
visible
light-promoted
and
electron–donor–acceptor
complex-enabled
cascade
reaction
of
alkynes
to
produce
functionalized
sulfur-containing
heterocycles
under
photocatalyst-,
base-,
oxidant-
metal-free
conditions
was
developed.
The Journal of Organic Chemistry,
Journal Year:
2022,
Volume and Issue:
87(13), P. 8697 - 8708
Published: June 9, 2022
An
electrochemical
dearomatizing
spirocyclization
of
alkynes
with
dimethyl
2-benzylmalonates
for
the
preparation
spiro[4.5]deca-trienones
has
been
developed.
This
approach
adopts
ferrocene
(Cp2Fe)
as
an
electrocatalyst
to
produce
carbon-centered
radical
intermediates
from
C–H-based
malonates,
which
obviates
forthputting
noble-metal
reagents,
sacrificial
chemical
oxidants
and
2-bromomalonates.
A
wide
variety
spiro
compounds
are
efficiently
prepared
satisfactory
results
under
mild
conditions.
Advanced Synthesis & Catalysis,
Journal Year:
2022,
Volume and Issue:
364(9), P. 1537 - 1542
Published: March 11, 2022
Abstract
Iron‐catalyzed
cascade
silyl
radical
addition/6‐
exo
‐trig
cyclization/dearomatization
of
biaryl
ynones
has
been
developed.
This
approach
uses
silane
as
the
precursor
well
silylation
reagent,
1,10‐phenanthroline
ligand,
and
tert
‐butyl
hydroperoxide
(TBHP)
oxidant.
By
employing
this
tandem
process,
a
series
silylated
spiro[5.5]trienones
were
prepared.
magnified
image
Organic & Biomolecular Chemistry,
Journal Year:
2022,
Volume and Issue:
20(33), P. 6659 - 6666
Published: Jan. 1, 2022
A
selective
polychloromethylation
and
halogenation
reaction
of
alkynes
via
a
radical
addition/spirocyclization
cascade
sequence
was
developed,
in
which
applying
polyhaloalkanes
as
the
precursor
polyhalomethyl
halogen
radicals.
