Environmental Science and Ecotechnology,
Journal Year:
2024,
Volume and Issue:
22, P. 100449 - 100449
Published: July 5, 2024
In
recent
years,
there
has
been
significant
interest
in
photocatalytic
technologies
utilizing
semiconductors
and
photosensitizers
responsive
to
solar
light,
owing
their
potential
for
energy
environmental
applications.
Current
efforts
are
focused
on
enhancing
existing
photocatalysts
developing
new
ones
tailored
uses.
Anthraquinones
(AQs)
serve
as
redox-active
electron
transfer
mediators
photochemically
active
organic
photosensitizers,
effectively
addressing
common
issues
such
low
light
utilization
carrier
separation
efficiency
found
conventional
semiconductors.
AQs
offer
advantages
abundant
raw
materials,
controlled
preparation,
excellent
capabilities,
photosensitivity,
with
applications
spanning
the
energy,
medical,
sectors.
Despite
utility,
comprehensive
reviews
AQs-based
systems
contexts
lacking.
this
review,
we
thoroughly
describe
photochemical
properties
of
photocatalysis,
particularly
key
challenges
like
clean
production,
antibacterial
action,
pollutant
degradation.
However,
face
limitations
practical
due
electrical
conductivity
solubility-related
secondary
contamination.
To
mitigate
these
issues,
design
synthesis
graphene-immobilized
highlighted
a
solution
enhance
Additionally,
future
research
directions
proposed
deepen
understanding
AQs'
theoretical
mechanisms
provide
wastewater
treatment.
This
review
aims
facilitate
mechanistic
studies
improve
technologies.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(28), P. 15581 - 15588
Published: July 10, 2023
para-Selective
C-H
functionalization
of
pyridines
holds
a
significant
value
but
remains
underdeveloped.
Site-switchable
under
easily
tunable
conditions
expedites
drug
development.
We
recently
reported
redox-neutral
dearomatization-rearomatization
strategy
for
meta-C-H
via
oxazino
pyridine
intermediates.
Here,
we
demonstrate
that
these
intermediates
undergo
highly
para-selective
simply
by
switching
to
acidic
conditions.
A
broad
scope
para-alkylated
and
arylated
is
prepared
through
radical
as
well
ionic
pathways.
These
mild
catalyst-free
methods
are
applied
the
late-stage
para-functionalization
drugs
using
limiting
reagents.
Consecutive
meta,para-difunctionalization
also
achieved
with
complete
regiocontrol
relying
on
pH-dependent
reactivity
pyridines.
European Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
26(16)
Published: Feb. 21, 2023
Abstract
Late‐Stage
Functionalisation
(LSF)
is
an
innovative
technique
that
has
been
successfully
applied
to
the
C−H
diversification
of
pharmaceuticals.
However,
LSF
pyridine
ring
in
drug‐like
molecules
often
unselective.
As
a
result,
mixture
structurally
related
products
obtained,
thus
making
purification
tedious
and
time‐consuming.
This
review
shines
light
on
recent
strategies
addressing
selectivity
issue
complex
natural
or
drugs
containing
moiety.
Specifically,
we
have
reviewed
efforts
reported
both
academia
industries
with
hope
providing
guide
for
elaborated
pyridines.
Environmental Science and Ecotechnology,
Journal Year:
2024,
Volume and Issue:
22, P. 100449 - 100449
Published: July 5, 2024
In
recent
years,
there
has
been
significant
interest
in
photocatalytic
technologies
utilizing
semiconductors
and
photosensitizers
responsive
to
solar
light,
owing
their
potential
for
energy
environmental
applications.
Current
efforts
are
focused
on
enhancing
existing
photocatalysts
developing
new
ones
tailored
uses.
Anthraquinones
(AQs)
serve
as
redox-active
electron
transfer
mediators
photochemically
active
organic
photosensitizers,
effectively
addressing
common
issues
such
low
light
utilization
carrier
separation
efficiency
found
conventional
semiconductors.
AQs
offer
advantages
abundant
raw
materials,
controlled
preparation,
excellent
capabilities,
photosensitivity,
with
applications
spanning
the
energy,
medical,
sectors.
Despite
utility,
comprehensive
reviews
AQs-based
systems
contexts
lacking.
this
review,
we
thoroughly
describe
photochemical
properties
of
photocatalysis,
particularly
key
challenges
like
clean
production,
antibacterial
action,
pollutant
degradation.
However,
face
limitations
practical
due
electrical
conductivity
solubility-related
secondary
contamination.
To
mitigate
these
issues,
design
synthesis
graphene-immobilized
highlighted
a
solution
enhance
Additionally,
future
research
directions
proposed
deepen
understanding
AQs'
theoretical
mechanisms
provide
wastewater
treatment.
This
review
aims
facilitate
mechanistic
studies
improve
technologies.
