ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(4)
Published: Jan. 26, 2024
Abstract
We
report
the
development
of
a
convenient
organocatalytic
method
for
synthesis
5
H
‐pyrano[3,2‐
c
]chromenes
from
chromone‐containing
acrylates
and
ethyl
cyanoacetate.
The
is
characterized
by
simple
conditions
(ethanol,
basic
catalysis)
good
yields
(up
to
90
%).
synthesized
pyrano[3,2‐
are
promising
new
class
fluorescent
compounds.
They
have
intense
fluorescence
in
yellow‐green
region
spectrum
(495–554
nm)
with
high
quantum
72
%)
exhibit
large
Stokes
shifts
(3514–5856
cm
−1
).
demonstrated
possible
application
obtained
as
selective
“turn‐off”
sensors
nucleophilic
anions,
such
cyanide,
sulfide
sulfite.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(12), P. 6345 - 6398
Published: Jan. 1, 2024
Recent
progress
in
the
molecular
design,
structural
classification,
mechanisms
of
generation,
triggered
release,
structure–activity
relationships,
and
fluorescence
response
mechanism
fluorescent
small
molecule
donors
is
discussed.
Journal of Materials Chemistry B,
Journal Year:
2024,
Volume and Issue:
12(40), P. 10149 - 10162
Published: Jan. 1, 2024
Fatty
liver,
a
major
health
problem
worldwide,
is
closely
associated
with
aberrant
accumulation
and
alteration
of
energy
storage
organelles,
lipid
droplets
(LDs),
in
the
disease
process.
Fluorescent
probes
excellent
optical
performance,
high
sensitivity/selectivity
real-time
monitoring
have
emerged
as
an
attractive
tool
for
detection
LDs
used
diagnosis
fatty
liver.
In
this
review,
we
summarize
various
based
on
different
response
mechanisms
to
image
liver
process
using
excitation
imaging
modes
emission
wavelengths,
including
visible
near-infrared,
two/three-photon,
second
near-infrared
region.
The
perspectives
barriers
reported
droplet
(LD)
future
development
are
also
discussed.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(4)
Published: Jan. 26, 2024
Abstract
We
report
the
development
of
a
convenient
organocatalytic
method
for
synthesis
5
H
‐pyrano[3,2‐
c
]chromenes
from
chromone‐containing
acrylates
and
ethyl
cyanoacetate.
The
is
characterized
by
simple
conditions
(ethanol,
basic
catalysis)
good
yields
(up
to
90
%).
synthesized
pyrano[3,2‐
are
promising
new
class
fluorescent
compounds.
They
have
intense
fluorescence
in
yellow‐green
region
spectrum
(495–554
nm)
with
high
quantum
72
%)
exhibit
large
Stokes
shifts
(3514–5856
cm
−1
).
demonstrated
possible
application
obtained
as
selective
“turn‐off”
sensors
nucleophilic
anions,
such
cyanide,
sulfide
sulfite.
