Molecules,
Journal Year:
2021,
Volume and Issue:
26(18), P. 5705 - 5705
Published: Sept. 21, 2021
Nitric
oxide
(NO)
is
a
key
signaling
molecule
that
acts
in
various
physiological
processes
such
as
cellular
metabolism,
vasodilation
and
transmission
of
nerve
impulses.
A
wide
number
vascular
diseases
well
immune
neurodegenerative
disorders
were
found
to
be
directly
associated
with
disruption
NO
production
living
organisms.
These
issues
justify
constant
search
novel
NO-donors
improved
pharmacokinetic
profiles
prolonged
action.
In
series
known
structural
classes
capable
release,
heterocyclic
are
special
importance
due
their
increased
hydrolytic
stability
low
toxicity.
It
no
wonder
synthetic
biochemical
investigations
have
emerged
significantly
recent
years.
this
review,
we
summarized
advances
the
synthesis,
reactivity
biomedical
applications
promising
(furoxans,
sydnone
imines,
pyridazine
dioxides,
azasydnones).
The
potential
each
system
along
mechanisms
action
emphasized.
Pharmaceuticals,
Journal Year:
2020,
Volume and Issue:
13(6), P. 111 - 111
Published: May 29, 2020
Five-membered
1,2,4-oxadiazole
heterocyclic
ring
has
received
considerable
attentionbecause
of
its
unique
bioisosteric
properties
and
an
unusually
wide
spectrum
biological
activities.Thus,
it
is
a
perfect
framework
for
the
novel
drug
development.
After
century
since
the1,2,4-oxadiazole
have
been
discovered,
uncommon
potential
attracted
medicinal
chemists'attention,
leading
to
discovery
few
presently
accessible
drugs
containing
1,2,4-oxadiazoleunit.
It
worth
noting
that
interest
in
1,2,4-oxadiazoles'
application
doubledin
last
fifteen
years.
Herein,
after
concise
historical
introduction,
we
present
comprehensiveoverview
recent
achievements
synthesis
1,2,4-oxadiazole-based
compounds
themajor
advances
their
applications
period
five
years
as
well
briefremarks
on
prospects
further
FirePhysChem,
Journal Year:
2021,
Volume and Issue:
2(2), P. 83 - 139
Published: Oct. 1, 2021
Energetic
material
is
a
very
essential
company
of
compounds,
widely
used
in
various
fields,
primarily
the
military
industry
and
space
technologies.
These
compounds
are
unique
that
they
capable
instantly
decomposing
to
release
enormous
energy.
The
chemical
diversity
energetic
organic
constantly
increasing
through
combination
high-nitrogen
frameworks
explosophoric
groups,
which
follows
overall
trend
interest
their
chemistry
applications.
scientific
community
looking
for
more
powerful
less
sensitive
external
impulses
both
civilian
use.
Herein,
detailed
overview
regarding
classic
novel
groups
frameworks,
as
well
description
selected
synthesis
target
has
been
given
time
period
since
2010.
physical
properties
performances
benchmark
prospective
also
collected.
Russian Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
93(7), P. RCR5125 - RCR5125
Published: July 1, 2024
The
chemistry
of
heterocyclic
compounds
has
traditionally
been
and
remains
a
bright
area
chemical
science
in
Russia.
This
is
due
to
the
fact
that
many
heterocycles
find
widest
application.
These
are
key
structural
fragments
most
drugs,
plant
protection
agents.
Many
natural
also
derivatives
heterocycles.
At
present,
more
than
half
hundreds
millions
known
collective
review
devoted
achievements
Russian
chemists
this
field
over
last
15–20
years.
presents
leading
heterocyclists
representing
both
RAS
institutes
university
science.
It
worth
noting
wide
scope
review,
terms
geography
author
teams,
covering
whole
our
large
country,
diversity
research
areas.
Practically
all
major
types
represented
review.
special
attention
focused
on
practical
applications
design
new
drugs
biologically
active
compounds,
high-energy
molecules,
materials
for
organic
electronics
photovoltaics,
ligands
coordination
chemistry,
other
rapidly
developing
advances
would
not
be
possible
without
development
fundamental
transformations
chemistry.<br>
Bibliography
—
2237
references.
Russian Chemical Reviews,
Journal Year:
2019,
Volume and Issue:
89(1), P. 55 - 124
Published: Sept. 27, 2019
The
review
is
devoted
to
modern
trends
in
the
chemistry
of
nitrogen-,
oxygen-and
sulfur-containing
monocyclic,
polynuclear
and
benzo(hetero)annulated
heterocyclic
compounds.
Methods
for
synthesis
chemical
reactivity
furazan,
furoxan,
thiazole,
thiadiazole,
dithiazole,
thiophene,
glycoluril,
imidazotriazine,
diaziridine
other
heterocycles
are
discussed.
Characteristic
features
reactions
depending
on
structure
starting
compounds,
intermediates
reaction
medium
(organic
solvents,
ionic
liquids)
mechanistic
aspects
most
interesting
transformations
considered.
Data
biological
activities
prospects
practical
applications
indicated
systems
presented.
bibliography
includes
383
references.
Applied Sciences,
Journal Year:
2022,
Volume and Issue:
12(8), P. 3756 - 3756
Published: April 8, 2022
Biologically
active
compounds
play
a
key
role
in
the
fight
against
diseases
affecting
both
human
and
animal
living
organisms,
as
well
plants.
Finding
out
about
new
molecules
with
potential
biological
effect,
not
yet
described
literature,
is
one
of
most
important
aspects
development
medicine
agriculture.
Compounds
showing
desirable
activity
include
heterocyclic
moieties
such
1,3,4-oxadiazoles.
The
oxadiazole
molecule
composed
two
nitrogen
atoms
oxygen
atom,
forming
five-membered
ring.
Structures
this
type
have
been
successfully
used
treatment
various
humans
animals,
an
modern
It
has
proven
that
many
derivatives
exhibit
antibacterial,
antiviral,
blood
pressure
lowering,
antifungal,
antineoplastic,
anticancer,
antioxidant,
anti-inflammatory
analgesic
properties.
In
addition,
based
on
1,3,4-oxadiazole
can
act
plant
protection
agents
due
to
their
herbicidal,
insecticidal
fungicidal
activity.
Due
constantly
growing
interest
systems
nature,
methods
obtaining
complex
structures
containing
rings
are
sought.
This
article
discusses
synthesis
exhibiting
Based
these
techniques,
could
be
future
Engineering,
Journal Year:
2020,
Volume and Issue:
6(9), P. 1013 - 1018
Published: July 16, 2020
Designing
and
synthesizing
more
advanced
high-energetic
materials
for
practical
use
via
a
simple
synthetic
route
are
two
of
the
most
important
issues
development
energetic
materials.
Through
an
elaborate
design
rationally
selected
molecular
components,
new
metal-free
hexagonal
perovskite
compounds,
which
named
as
DAP-6
DAP-7
with
general
formula
(H2dabco)B(ClO4)3
(H2dabco2+
=
1,4-diazabicyclo[2.2.2]octane-1,4-diium),
were
fabricated
easily
scaled-up
using
NH3OH+
NH2NH3+
B-site
cations,
respectively.
Compared
their
NH4+
analog
((H2dabco)(NH4)(ClO4)3;
DAP-4),
has
cubic
structure,
have
higher
crystal
densities
enthalpies
formation,
thus
exhibiting
calculated
detonation
performances.
Specifically,
ultrahigh
thermal
stability
(decomposition
temperatures
(Td)
375.3
°C),
high
velocity
(D
8.883
km·s−1),
pressure
(P
35.8
GPa);
therefore,
it
exhibits
potential
heat-resistant
explosive.
Similarly,
(Td
245.9
°C)
excellent
performance
9.123
km·s−1,
P
38.1
GPa).
Nevertheless,
also
possesses
remarkably
heat
(Q
6.35
kJ·g−1)
specific
impulse
(Isp
265.3
s),
is
superior
to
that
hexanitrohexaazaisowurtzitane
(CL-20;
Q
6.23
kJ·g−1,
Isp
264.8
s).
Thus,
can
serve
promising
high-performance
material
use.
Energetic Materials Frontiers,
Journal Year:
2021,
Volume and Issue:
2(1), P. 3 - 13
Published: Jan. 14, 2021
In
recent
years,
the
development
of
novel
advanced
high-energy
density
materials
has
significantly
shifted
toward
nitrogen-containing
heterocyclic
derivatives,
which
demonstrate
a
great
potential
for
multipurpose
application
patterns.
Among
known
heterocycles
hydroxytetrazole
is
special
importance
due
to
its
high
nitrogen-oxygen
content
and
possibility
serve
as
anion
counterpart
form
diverse
array
organic
inorganic
energetic
salts.
this
review,
we
summarized
main
achievements
on
synthesis
performance
hydroxytetrazole-based
materials.
Potential
applications
presented
compounds
their
environmental
compatibility
are
especially
emphasized.
ACS Applied Energy Materials,
Journal Year:
2020,
Volume and Issue:
3(8), P. 7764 - 7771
Published: July 6, 2020
Several
energy-rich
bifuroxans
incorporating
nitro
and
azido
functionalities
have
been
synthesized
thoroughly
characterized
by
IR
multinuclear
NMR
spectroscopy,
elemental
analyses,
single-crystal
X-ray
diffraction,
differential
scanning
calorimetry.
N-oxide
regiochemistry
was
employed
to
design
the
tunable
azido(nitro)bifuroxans
with
different
physicochemical
energetic
properties.
All
compounds
high
enthalpies
of
formation
(449–777
kJ
mol–1)
attractive
performances,
as
evidenced
detonation
velocities
(8.95–9.75
km
s–1)
Champan–Jouguet
pressures
(35–45
GPa).
The
most
powerful
material
in
this
series
is
4,4′-dinitro-3,3′-bifuroxan.
This
hydrogen-free
molecule
(C4N6O8)
exhibits
an
outstanding
heat
explosion
value
15.3
cm–1,
far
exceeding
top
hexanitrohexaazaisowurtzitane
CL-20.
At
same
time,
impact
friction
sensitivities
4,4′-dinitro-3,3′-bifuroxan
were
deemed
acceptable
for
practical
use.
Overall,
breaks
a
general
trend
called
"energy-sensitivity
rule",
which
describes
linear
increase
mechanical
sensitivity
growth
content
molecule,
and,
thus,
offers
great
promise
future
applications.
Journal of Medicinal Chemistry,
Journal Year:
2021,
Volume and Issue:
64(4), P. 1786 - 1815
Published: Feb. 11, 2021
Incorporation
of
heterocycles
into
drug
molecules
can
enhance
physical
properties
and
biological
activity.
A
variety
heterocyclic
groups
is
available
to
medicinal
chemists,
many
which
have
been
reviewed
in
detail
elsewhere.
Oxadiazoles
are
a
class
heterocycle
containing
one
oxygen
two
nitrogen
atoms,
three
isomeric
forms.
While
the
1,2,4-
1,3,4-oxadiazoles
seen
widespread
application
chemistry,
1,2,5-oxadiazoles
(furazans)
less
common.
This
Review
provides
summary
furazan-containing
chemistry
development
programs
from
analysis
both
patent
academic
literature.
Emphasis
placed
on
that
reached
clinical
or
preclinical
stages
development.
The
examples
provided
herein
describe
pharmacology
activity
furazan
derivatives
with
comparative
data
where
possible
for
other
pharmacophores
commonly
used
chemistry.