Catalyst-free mechanochemistry as a versatile tool in synthetic chemistry: a review
Green Chemistry,
Год журнала:
2023,
Номер
25(16), С. 6120 - 6148
Опубликована: Янв. 1, 2023
This
article
presents
a
review
of
the
reports
on
catalyst-free
mechanochemical
organic
transformations
and
ability
to
initiate
reactions
that
are
extremely
difficult/impossible
occur
is
notable
advancement
process.
Язык: Английский
WEPA: a reusable waste biomass-derived catalyst for external oxidant/metal-free quinoxaline synthesisviatandem condensation–cyclization–oxidation of α-hydroxy ketones
Green Chemistry,
Год журнала:
2022,
Номер
24(16), С. 6215 - 6223
Опубликована: Янв. 1, 2022
WEPA,
a
waste
biomass-derived
catalyst,
was
used
to
synthesize
quinoxalines
from
aryl/heteroaryl
1,2-diamines
and
α-hydroxy
ketones
via
metal
catalyst/added
oxidant-free
sequential
condensation–cyclization–oxidation
process.
Язык: Английский
External Base‐Free Approach for Copper‐Catalyzed N‐Arylation of Indoles and Pyrroles in Green Reaction Medium
Applied Organometallic Chemistry,
Год журнала:
2025,
Номер
39(2)
Опубликована: Янв. 1, 2025
ABSTRACT
N
‐Arylated
heterocyclic
molecules
are
extensively
found
as
key
components
in
numerous
pharmaceutical
and
agrochemical
compounds.
Herein,
inexpensive
1,10‐phenanthroline‐assisted
copper‐catalyzed
sustainable
greener
methodology
has
been
developed
for
‐arylation
of
indoles
pyrrole
under
commercial
base
additive‐free
conditions.
Waste
biomass–derived
water
extract
banana
peel
ash
(WEB)
used
safe
reaction
medium
instead
hazardous
solvents,
hence,
the
current
green
protocol
achieved
an
environmentally
benign
profile.
Reaction
with
aryl
iodides
electronically
diverse
iodides/aryl
bromides
presence
CuI
catalyst,
1,10‐phenanthroline
ligand,
WEB
a
solvent
at
100°C
furnished
‐arylated
product
within
12
h.
up
to
93%
yields
while
resulted
54%
yield
desired
product.
The
utilization
waste
biomass
derivative
organic
transformation
is
step
this
protocol,
which
consistence
goals
chemistry.
Язык: Английский
Ultrasound-assisted Synthesis of β-(N-arylamino)acrylates Derivatives, Key Intermediates of Biopotent Compounds
Letters in Organic Chemistry,
Год журнала:
2024,
Номер
22(1), С. 61 - 69
Опубликована: Май 29, 2024
<i>β</i>-(<i>N</i>-arylamino)acrylates
are
building
blocks
of
great
industrial
interest
as
they
allow
the
obtention
a
variety
heterocyclic
substances,
such
quinoline
and
pyridone
derivatives.
Therefore,
development
new
methodologies
for
synthesis
these
substances
is
still
interest.
In
this
work,
fourteen
were
synthesized
in
multigram
scale
from
reaction
mono-
di-substituted
anilines
with
diethyl
ethoxymethylenemalonate
by
sonochemistry
(US)
results
compared
to
those
obtained
conventional
heating.
The
use
US
brought
many
benefits
syntheses,
including
faster
reactions
increased
yields.
crystal
structure
2-(((2-chloro-5-nitrophenyl)amino)methylene)malonate
also
reported.
Язык: Английский
Green synthesis and DFT study of orthoaminocarbonitrile methyl tetrahydronaphthalene using WEPA: water extract of pomegranate ash as a sustainable catalyst
Pankaj S. Dafale,
Vivek S. Ingale,
Arati Gavali
и другие.
Research on Chemical Intermediates,
Год журнала:
2024,
Номер
50(12), С. 5963 - 5975
Опубликована: Ноя. 9, 2024
Язык: Английский
Tamarindus indica seed ash extract for C–C coupling under added organics and volatile organic solvent-free conditions: a waste repurposing technique for Suzuki–Miyaura reaction
Environmental Science and Pollution Research,
Год журнала:
2022,
Номер
30(28), С. 71430 - 71438
Опубликована: Май 3, 2022
Язык: Английский
Recent Advances in the Application of Green Solvents Derived from Natural Sources in Organic Synthesis
Revista Virtual de Química,
Год журнала:
2023,
Номер
15(5), С. 907 - 930
Опубликована: Янв. 1, 2023
The
use
of
eco-friendly
solvents
has
been
gaining
more
and
space
in
the
development
organic
synthesis
methodologies.In
this
context,
increasing
number
derived
from
natural
sources
used
for
purpose
is
remarkable,
since
they
are
obtained
abundant
raw
materials
or
byproducts
industrial
processes.Thus,
review
aims
to
present
recent
advances
application
these
substances
as
"greener"
compounds,
serving
a
guide
new
environmentally
appropriate
synthetic
methodologies.
Язык: Английский
A Sustainable Protocol for C=C Bonds Synthesis Using Water Extract of Annona squamosa Fruit Shell Ash (WEASF)
ChemistrySelect,
Год журнала:
2023,
Номер
8(32)
Опубликована: Авг. 23, 2023
Abstract
The
use
of
bioresource‐derived
wastes
to
valuable
organic
reactions
is
a
new
and
fascinating
trend
in
the
current‐day
chemistry
which
aims
at
decrease/elimination
depleting
resources
based
chemicals.
This
article
discusses
sustainable
protocol
for
synthesis
C=C
bonds
via
Knoevenagel
condensation
reaction
α‐cyano
esters
with
aldehydes
using
water
extract
Annona
squamosa
fruit
shell
ash
(WEASF)
as
catalyst.
These
have
been
conducted
room
temperature
(RT)
aqueous
media
products
are
purified
by
recrystallization.
WEASF
acts
biorenewable
base
process
avoids
solvents
column‐based
purifications
products.
bio‐derived
also
showed
its
high
reusability
current
alternative
existing
methods
making
polysubstituted
olefins.
Язык: Английский
Effect of Bimetallic Dimer-Embedded TiO2(101) Surface on CO2 Reduction: The First-Principles Calculation
Materials,
Год журнала:
2022,
Номер
15(7), С. 2538 - 2538
Опубликована: Март 30, 2022
The
first-principles
calculation
was
used
to
explore
the
effect
of
a
bimetallic
dimer-embedded
anatase
TiO
Язык: Английский