Chitin
biorefinery
offers
a
unique
opportunity
to
sustainably
produce
highly-valued
organonitrogen
compounds
such
as
the
versatile
pharmaceutical
precursor
3-acetamido-5-acetylfuran
(3A5AF),
bypassing
Haber
process
and
mitigating
consumption
of
fossil
feedstocks.
However,
reported
protocols
engaged
large
quantities
toxic
organic
solvents
required
harsh
conditions.
In
this
work,
highly
efficient
catalytic
system
has
been
developed
in
nontoxic,
biobased
γ-valerolactone
(GVL)
solvent
under
relatively
mild
3A5AF
was
selectively
obtained
with
an
unprecedent
yield
75.3%
at
140
°C
for
2
h
by
adding
NH4SCN
HCl.
The
high
yielding
exclusively
promoted
dissolution-catalytic
effect.
Based
on
UPLC-TOF-MS
NMR
analyses,
presence
induced
very
rapid
NAG
conversion
possibly
coordinating
acetamido
group,
product
subsequent
dehydration
pathway
from
Chromogen
I
III
intermediates.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(10), P. 5601 - 5634
Published: Jan. 1, 2024
This
review
summarises
the
thermo-catalytic
processes
converting
chitin
from
shell
waste
into
diverse
chemicals
and
reviews
advances,
catalytic
systems,
associated
challenges.
iScience,
Journal Year:
2024,
Volume and Issue:
27(6), P. 109857 - 109857
Published: May 1, 2024
SummaryThe
exploration
of
renewable
alternatives
to
fossil
fuels
for
chemical
production
is
indispensable
achieve
the
ultimate
goals
sustainable
development.
Chitin
biomass
an
abundant
platform
feedstock
that
naturally
bears
both
nitrogen
and
carbon
atoms
produce
nitrogen-containing
chemicals
(including
organonitrogen
ones
inorganic
ammonia).
The
expansion
biobased
toward
can
elevate
economic
competitiveness
benefit
biorefinery
scheme.
This
review
aims
provide
up-to-date
summary
on
overall
advances
chitin
production,
with
emphasis
design
catalytic
systems.
Catalyst
design,
solvent
selection,
parametric
effect,
reaction
mechanisms
have
been
scrutinized
different
transformation
strategies.
Future
prospectives
also
outlined.Graphical
abstract
Pharmaceutics,
Journal Year:
2024,
Volume and Issue:
16(6), P. 777 - 777
Published: June 7, 2024
This
review
focuses
on
factors
and
the
fabrication
techniques
affecting
microarchitecture
of
tissue
engineering
scaffolds
from
second
most
abundant
biopolymer,
chitin.
It
emphasizes
unique
potentiality
this
polymer
in
(TE)
applications
highlights
variables
important
to
achieve
tailored
scaffold
properties.
First,
we
describe
aspects
scaffolds’
design,
complex
interplay
between
chitin
types,
solvent
systems,
additives,
incorporate
porosity,
with
regard
best
practices.
In
following
section,
provide
examples
use,
a
focus
vitro
cell
studies.
Finally,
an
analysis
their
biodegradability
is
presented.
Our
pressing
need
for
further
research
overcome
existing
challenges
fully
harness
its
capabilities
engineering.
RSC Sustainability,
Journal Year:
2024,
Volume and Issue:
2(4), P. 1154 - 1164
Published: Jan. 1, 2024
Chitosan
production
from
[Emim][OAc]
IL-pretreatment
of
shrimp
chitin
and
subsequent
microwave-mediated
deacetylation
is
described.
[TBA][OH]
can
be
recovered.
MD
simulation
the
[TBA][OH]–chitin
system
illustrated.
