ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(12)
Published: March 19, 2024
Abstract
Synthesis
of
imidazo[2,1‐
b
][1,3]benzothiazoles
by
oxidative
coupling
2‐aminobenzothiazoles
with
vicinal
diol
was
reported.
Expectedly,
a
combination
potassium
persulfate
and
TEMPO
oxidized
ethylene
glycol
to
α‐hydroxy
acetaldehyde,
which
coupled
2‐aminobenzothiazole
afford
2,3‐unsubstituted
][1,3]benzothiazoles.
The
later
exploited
as
reliable
handle
access
3‐substituted
regioselectively.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(9), P. 4607 - 4647
Published: Jan. 1, 2024
This
review
collectively
discussed
the
utilisation
of
alcohols
in
various
organic
transformations
and
their
application
toward
intermediates
drugs,
drug
derivatives
natural
product-like
molecules.
Green Chemistry,
Journal Year:
2020,
Volume and Issue:
22(3), P. 582 - 611
Published: Jan. 1, 2020
Efficient
amination
strategies
for
synthesis
of
N-heterocycles
from
functional
molecules
(bottom-up)
or
biomass
(top-down)
via
sustainable
C–N/C–X
bond
chemistry.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(48), P. 25188 - 25202
Published: June 17, 2021
N-Heterocycles,
such
as
pyrroles,
pyrimidines,
quinazolines,
and
quinoxalines,
are
important
building
blocks
for
organic
chemistry
the
fine-chemical
industry.
For
their
synthesis,
catalytic
borrowing
hydrogen
acceptorless
dehydrogenative
coupling
reactions
of
alcohols
sustainable
reagents
have
received
significant
attention
in
recent
years.
To
overcome
problems
product
separation
catalyst
reusability,
several
metal-based
heterogeneous
catalysts
been
reported
to
achieve
these
transformations
with
good
yields
selectivity.
In
this
Minireview,
we
summarize
developments
using
both
noble
non-noble
synthesize
N-heterocycles
from
N-nucleophiles
via
dehydrogenation
or
methodologies.
Furthermore,
Minireview
introduces
strategies
preparation
functionalization
corresponding
catalysts,
discusses
reaction
mechanisms
roles
metal
electronic
states,
influence
support
Lewis
acid-base
properties
on
reactions.
Asian Journal of Organic Chemistry,
Journal Year:
2023,
Volume and Issue:
12(6)
Published: May 2, 2023
Abstract
The
derivatives
of
indoles
are
very
useful
intermediates
in
pharmaceuticals
and
organic
synthesis.
efficient
synthesis
the
indole
blocks
related
functionalizations,
especially
alkylation
hot
topics
recent
years.
This
review
will
focus
on
following
two
aspects:
i)
new
developments
for
which
was
catalyzed
by
transition
metals,
indoles,
including
one
N
1
‐position,
C
2
as
well
3
‐position.
1.
Introduction
2.
Synthesis
various
metals
2.1.
palladium
catalysts
2.2.
other
metal
3.
Alkylation
3.1.
‐alkylation
3.2.
3.3.
The Journal of Organic Chemistry,
Journal Year:
2018,
Volume and Issue:
83(15), P. 7771 - 7778
Published: June 5, 2018
A
controlled
tandem
synthetic
route
to
azines
from
various
alcohols
and
hydrazine
hydrate
by
the
use
of
a
Ni(II)
complex
2,6-bis(phenylazo)pyridine
as
catalyst
is
reported.
In
marked
contrast
previous
report,
reaction
operative
using
an
earth-abundant
metal
catalyst,
milder
conditions,
aerobic
which
though
are
desirable
but
unprecedented
in
literature.
The
catalytic
has
vast
substrate
scope
including
single-step
synthesis
phthalazine
1,2-benzenedimethanol
via
intramolecular
coupling.
Mechanistic
investigation
suggests
that
coordinated
ligand
redox
controls
reversible
azo
(N═N)/
hydrazo
(NH-NH)
couple
where
center
used
primarily
template.
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:
2022,
Volume and Issue:
24(19), P. 7368 - 7375
Published: Jan. 1, 2022
A
novel
cationic
nickel(
i
)
complex
exhibiting
extremely
high
efficiency
toward
the
(de)hydrogenative
N
-alkylation
of
amines
and
olefination
alkyl
heteroarenes
by
alcohols
is
reported.
ACS Omega,
Journal Year:
2019,
Volume and Issue:
4(12), P. 15012 - 15021
Published: Sept. 5, 2019
Currently,
there
is
an
intensive
development
of
bio-based
aromatic
building
blocks
to
replace
fossil-based
terephthalates
used
for
poly(ethylene
terephthalate)
production.
Indole
a
ubiquitous
unit
in
nature,
which
has
great
potential
as
feedstock
polymers
or
plastics.
In
this
study,
we
describe
the
synthesis
and
characterization
new
indole-based
dicarboxylate
monomers
with
only
ester
bonds,
can
improve
thermal
stability
glass-transition
temperature
(Tg)
resulting
polyesters.
The
were
polymerized
five
aliphatic
diols
yield
10
polyesters
tunable
chemical
structures
physical
properties.
Particularly,
Tg
values
obtained
be
high
113
°C,
indicated
by
differential
scanning
calorimetry
dynamic
mechanical
analysis.
showed
decent
distinct
flow
transitions
revealed
thermogravimetric
analysis
rheology
measurements.
