The epoxy resin system: function and role of curing agents
Carbon letters,
Год журнала:
2023,
Номер
34(1), С. 477 - 494
Опубликована: Сен. 1, 2023
Язык: Английский
Pd-Catalyzed Aryl C–H Amination with Diaziridinone
Organic Letters,
Год журнала:
2023,
Номер
25(12), С. 2006 - 2011
Опубликована: Март 16, 2023
This
work
describes
an
efficient
Pd-catalyzed
ortho-C-H
amination
of
N-(quinolin-8-yl)benzamides
with
di-t-butyldiaziridinone,
providing
a
variety
anthranilic
amides
in
good
yields.
The
reaction
likely
involves
the
formation
pallada(II)heterocycle
via
aryl
C-H
activation
and
subsequent
di-t-butyldiaziridinone.
Язык: Английский
Nitrogen-doped carbon supported nanocobalt for the synthesis of functionalized triazines via oxidative cleavage of biomass derived vicinal diols as carbon synthons
Journal of Catalysis,
Год журнала:
2022,
Номер
408, С. 227 - 235
Опубликована: Март 19, 2022
Язык: Английский
Copper Catalyst-Supported Modified Magnetic Chitosan for the Synthesis of Novel 2-Arylthio-2,3-dihydroquinazolin-4(1H)-one Derivatives via Chan–Lam Coupling
Inorganics,
Год журнала:
2022,
Номер
10(12), С. 231 - 231
Опубликована: Ноя. 29, 2022
In
this
paper,
magnetic
chitosan
is
used
as
a
support
for
the
immobilization
of
copper
catalyst
(Cu@MChit).
The
fabricated
successfully
synthesized
and
characterized
by
several
techniques.
activity
Cu@MChit
evaluated
in
synthesis
novel
derivatives
3-alkyl-2-arylthio-2,3-dihydroquinazolin-4(1H)-ones.
products
are
three
simple
steps
via
Chan–Lam
coupling
reaction.
synthetic
route
based
on
reaction
isatoic
anhydride
an
amine,
followed
with
carbon
disulfide.
Cu@MChit-catalyzed
obtained
intermediate
phenylboronic
acid
leads
to
desired
products.
scope
confirmed
using
various
amine
high
isolated
yields.
Язык: Английский
Layered Double Hydroxides as Reusable Catalysts for Cyclocondensation of Amidines and Aminoalcohols: Access to Multi-functionalized Oxazolines
The Journal of Organic Chemistry,
Год журнала:
2021,
Номер
87(2), С. 1366 - 1376
Опубликована: Дек. 29, 2021
An
efficient
catalytic
protocol
based
on
reusable
MgAl-layered
double
hydroxides
has
been
developed
for
the
synthesis
of
multi-functionalized
oxazolines
via
cyclocondensation
amidines
and
aminoalcohols.
The
method
a
broad
substrate
scope
excellent
functional
group
tolerance
uses
catalyst.
catalyst
can
be
conveniently
recycled
by
filtration
reused
at
least
five
times
without
obvious
deactivation.
Additionally,
selective
ortho
C–H
silylation
was
performed
using
Ru(II)
as
triethyl
silane
silylating
reagent,
which
proved
to
convenient
practical
versatile
organosilyl-functionalized
with
advantageous
biological
physical
properties.
Язык: Английский
A Simple and Efficient [(n-Bu3Sn)2MO4]nCatalyzed Synthesis of Quinazolinones and Dihydroquinazolinones
Simhachalam Gorle,
Vaikunta Rao Lakinani,
Chiranjeevi Yakkanti
и другие.
Polycyclic aromatic compounds,
Год журнала:
2021,
Номер
42(9), С. 6583 - 6591
Опубликована: Окт. 7, 2021
A
novel
unprecedented
approach
for
the
synthesis
of
various
quinazolinones
and
dihydroquinazolinones
has
been
using
[(n-Bu3Sn)2MO4]n
as
a
catalyst.
The
reaction
screened
in
solvents
gram
scale
experiment
also
demonstrated
under
given
conditions.
Further,
substrate
scope
recyclability
catalyst
have
studied.
Язык: Английский
One-Pot Three-Component Synthesis of 3,4-Dihydroquinazoline Derivatives
Long Zhao,
Mao-Lin Yang,
Hao Chen
и другие.
Chinese Journal of Organic Chemistry,
Год журнала:
2022,
Номер
42(11), С. 3740 - 3740
Опубликована: Янв. 1, 2022
A
new
one-pot
synthesis
of
3,4-dihydroquinazolines
by
diethyl
azodicarboxylate
(DEAD)-promoted
oxidative
Ugi/
aza-Wittig
reaction
was
developed.The
reactions
iminophosphoranes
5,
N-aryl-1,2,3,4-tetrahydroisoquinolines
6
and
acids
7
produced
3-(tetrahydroisoquinolin-1-formyl)
substituted
8
in
moderate
to
good
yields
the
presence
DEAD
tandem
Ugi/aza-Wittig
reaction.
Язык: Английский
Selective Synthesis of 2-(1,2,3-Triazoyl) Quinazolinones through Copper-Catalyzed Multicomponent Reaction
Catalysts,
Год журнала:
2021,
Номер
11(10), С. 1170 - 1170
Опубликована: Сен. 27, 2021
We
describe
here
our
results
from
the
copper-catalyzed
three
component
reaction
of
2-azidobenzaldehyde,
anthranilamide
and
terminal
alkynes,
using
Et3N
as
base,
DMSO
solvent.
Depending
on
temperature
amount
used
in
reactions,
1,2,3-triazolyl-quinazolinones
or
1,2,3-triazolyl-dihydroquinazolinone
could
be
obtained.
When
reactions
were
performed
at
100
°C
2
equivalents
Et3N,
was
formed
82%
yield,
whereas
carried
out
120
1
equivalent
provided
moderate-to-good
yields.
Язык: Английский
Nitrogen-Doped Carbon Supported Nanocobalt for the Synthesis of Functionalized Triazines Via Oxidative Cleavage of Biomass Derived Vicinal Diols as Carbon Synthons
SSRN Electronic Journal,
Год журнала:
2022,
Номер
unknown
Опубликована: Янв. 1, 2022
The
efficient
conversion
of
renewable
biomass
resources
into
value-added
nitrogen-containing
chemicals
has
become
the
focus
recent
research.
Herein,
we
report
preparation
nitrogen-doped
carbon
supported
cobalt
catalysts
comprising
a
unique
core−shell
structure,
and
regulation
their
catalytic
behavior
in
dehydrocyclization
reaction.
Abundant
biomass-derived
diols
were
employed
as
synthons
to
react
with
amidines,
they
furnished
structurally
diverse
1,3,5-triazines,
class
compounds
found
numerous
natural
biomedical
products.
synthetic
protocol
advantages
broad
substrate
scope,
good
functional
group
tolerance,
reusable
metal
catalyst,
easily
available
reactants.
method
is
convenient
practical
for
syntheses
versatile
triazines
advantageous
biological
physical
properties.
Язык: Английский