Chemistry - An Asian Journal,
Journal Year:
2021,
Volume and Issue:
16(22), P. 3754 - 3759
Published: Sept. 22, 2021
D-fructose,
a
biomass-derived
carbohydrate
has
been
identified
as
an
environmentally
benign
C2
synthon
in
the
preparation
of
synthetically
useful
2-hydroxymethylbenzimidazole
derivatives
by
coupling
with
1,2-phenylenediamines.
Proof
concept
was
established
synthesizing
23
examples
using
BF3.OEt2
(20
mol%),
TBHP
(5.5
M,
decane)
(1.0
equiv.)
CH3CN
at
90
°C
for
1
h.
The
pivotal
features
this
method
include
metal-free
conditions,
short
time,
good
functional
group
tolerance,
gram
scale
feasibility
and
synthesis
benzimidazole
fused
1,4-oxazine.
Control
studies
conventional
synthons
did
not
produce
desired
product,
thus
suggesting
new
reaction
pathway
from
D-fructose.
Green Chemistry,
Journal Year:
2022,
Volume and Issue:
24(6), P. 2602 - 2612
Published: Jan. 1, 2022
Porous
polypyridine-oxadiazole
supported
iridium
catalysts
(PPO-Ir)
revealed
high
catalytic
activity
for
the
reaction
of
dimethyl-6-aminouracil
(including
1,3-dimethylbarbituric
acid,
2-aminobenzylamine)
with
alcohols.
Organic Letters,
Journal Year:
2021,
Volume and Issue:
23(14), P. 5299 - 5304
Published: June 25, 2021
A
visible-light-enabled,
photocatalyst-free
conjugate
addition
reaction
of
dehydroamino
acids
is
disclosed.
Employing
4-acyl-1,4-dihydropyridines
as
both
a
radical
reservoir
and
reductant,
various
β-acyl
α-amino
their
deuterated
analogues
were
obtained
in
good
results.
Both
late-stage
peptide
modification
stereoselective
synthesis
chiral
oxazolidinones
are
successfully
achieved.
The
protocol
characterized
by
mild
conditions
efficient
derivatization,
thus
unlocking
novel
blueprint
to
access
unnatural
amino
acid
derivatives,
important
building
blocks
with
potential
application
the
peptidomimetic
toolbox.
Chemistry - An Asian Journal,
Journal Year:
2023,
Volume and Issue:
18(8)
Published: Feb. 23, 2023
Porous
organic
polymers
are
porous
materials
that
interlinked
with
building
blocks
by
strong
covalent
bonds.
The
functional
groups
on
the
can
be
carefully
chosen
to
obtain
a
POP
desired
functionalities.
In
certain
cases,
pores
or
voids
interact
molecules
via
non-covalent
interactions
and
hence
they
serve
as
catalytic
centers.
many
pristine
POPs
themselves
were
evaluated
heterogeneous
catalysts
for
their
activity.
inner
of
act
ligand
metal
ions/metal
nanoparticles
wide
range
metal-ion-anchored
nanoparticle-loaded
reported.
These
catalyze
different
reactions
metal-based
catalysis
following
pathway.
this
type
catalysis,
plays
an
important
role,
i.
e.,
it
serves
carbon
matrix,
interacts
interactions,
further
in
metal/metal-ion-anchored
POPs,
concentration
is
highly
reduced
transformation
effectively
takes
place
at
interface
metal/carbon
matrix.
Herein,
we
discuss
recent
developments
metal-ion/metal
nanoparticle
loaded
role
various
transformations
such
C-C
coupling
reactions,
borrowing
hydrogen
CO2
transformations,
hydroformylations
oxidation
alkynes
1,2-diketones
C-H
arylation
reactions.
ChemCatChem,
Journal Year:
2021,
Volume and Issue:
13(22), P. 4751 - 4758
Published: Sept. 2, 2021
Abstract
Benzothiazole‐doped
porous
organic
polymers
(
POP‐MBTS
)
were
synthesized
from
a
copolymerization
reaction
of
2‐(6‐(4‐vinylphenyl)pyridin‐2‐yl)benzo[
d
]thiazole
with
divinylbenzene.
The
corresponding
POP‐MBTS‐Ir
was
obtained
and
fully
characterized
using
SEM,
TEM,
EDS,
TGA,
XPS,
N
2
sorption
isotherms,
which
disclosed
that
this
catalyst
has
high
surface
area,
hierarchical
porosity,
thermodynamic
stability.
Importantly,
revealed
catalytic
activity
for
ten
different
kinds
borrowing
hydrogen
dehydrogenation
reactions
in
water
good
recovery
performance.
Furthermore,
mechanistic
investigations
conducted
the
synthesis
triazine
derivatives.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(5), P. 2592 - 2598
Published: Jan. 1, 2024
A
novel
copper-based
biomass-carbon
aerogel
catalyst
was
prepared
as
a
highly
efficient
and
selective
for
maleimides
reduction
the
first
time
with
excellent
catalytic
activity,
chemo-selectivity,
recyclability.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Developing
efficient
methods
for
strong
Si-F
σ-bond
activation
is
very
important
in
organosilicon
chemistry.
We
report
the
preparation
of
a
novel
porous
organic
polymer
(POP)-supported
single-atom
Ru
catalyst
(POPs-Ru
SACs)
that
was
successfully
applied
catalytic
Si-F/Si-H
and
Si-F/Si-O
cross-coupling
reactions.
Various
disiloxanes
with
functional
group
tolerance
were
produced
under
mild
conditions.
Furthermore,
POPs-Ru
SACs
exhibited
excellent
recyclability
Si-H
Density
theory
calculations
performed
to
verify
mechanism
SACs-catalyzed
