Advanced Synthesis & Catalysis,
Год журнала:
2023,
Номер
366(2), С. 232 - 240
Опубликована: Ноя. 23, 2023
Abstract
The
total
synthesis
of
Laetevirenol
A,
a
natural
product
with
antioxidant
activity,
has
been
achieved.
A
gold‐catalyzed
cycloisomerization
an
o
‐alkenyl‐
o’
‐alkynylbiphenyl
used
as
the
key
step
for
construction
phenanthrene
moiety
present
in
A.
Several
studies
model
substrates
have
carried
out
to
unveil
effect
substituents
different
locations
outcome
this
cyclization,
which
allowed
design
appropriate
precursor
fundamental
cycloisomerization.
suitably
functionalized
intermediate
obtained
could
be
further
transformed
into
via
Friedel‐Crafts
also
turned
dependent
on
nature
substituents.
Finally,
was
10
steps
from
commercially
available
substrates,
20%
global
yield.
Carbohydrate Polymer Technologies and Applications,
Год журнала:
2023,
Номер
6, С. 100352 - 100352
Опубликована: Авг. 18, 2023
In
this
study,
the
synthesis
of
a
new
chitosan-based
Schiff
base
with
surface
modification
using
chloroethanoic
acid
was
reported.
The
physicochemical
attributes
modified
chitosan
were
studied.
characterized
X-ray
diffraction
(XRD)
technique;
Fourier
transform
infrared
(FTIR)
and
UV-visible
spectroscopies;
thermogravimetric
analysis;
differential
scanning
calorimetry
(DSC).
Bruner-Emmett-Teller
(BET)
analysis
performed
to
determine
area
synthesized
compound
electron
microscope
(SEM)
characterize
its
morphology.
adsorption
efficacy
Bismarck
Brown
R
evaluated
through
multilayer
formation,
whereas
Eosin
Y
adsorbed
onto
homogenous
formation
monolayer.
Additionally,
base's
for
BBR
EY
dye
calculated
be
327
mg/g
386
mg/g,
respectively.
effectively
inhibited
both
gram
positive
negative
bacteria,
thus,
exhibiting
antibacterial
properties.
results
showed
that
could
used
remove
dyes
from
wastewater.
Natural Product Reports,
Год журнала:
2024,
Номер
41(7), С. 1091 - 1112
Опубликована: Янв. 1, 2024
This
review
highlights
a
curated
selection
of
publications
utilizing
homogeneous
gold-catalyzed
cycloaddition
and
cyclization
reactions
for
the
total
synthesis
natural
products
reported
from
2016
to
mid-2023.
