Helvetica Chimica Acta,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 30, 2025
Abstract
The
integration
of
sustainable
practices,
such
as
employing
renewable
light
sources
for
synthesizing
valuable
synthetic
scaffolds,
has
been
progressing
over
the
past
few
decades.
Among
these
noteworthy
organic
frameworks,
lactams,
particularly
γ‐lactams,
have
established
their
prominence
due
to
extensive
applications
in
pharmaceutical,
agricultural,
and
medicinal
domains.
This
growing
significance
γ‐lactams
spurred
considerable
interest
synthesis,
especially
via
milder,
more
sustainable,
environmentally
friendly
methods.
In
recent
years,
numerous
innovative
reaction
mechanisms
explored,
highlighting
how
photocatalysis
can
enable
formation
from
readily
accessible
precursors
through
C−N
bond
cyclization
processes.
review
emphasizes
potential
photocatalytic
strategies
not
only
enhance
current
methods
but
also
foster
development
greener
chemical
processes
future.
Abstract
The
increase
in
anthropogenic
carbon
dioxide
(CO
2
)
emissions
has
exacerbated
the
deterioration
of
global
environment,
which
should
be
controlled
to
achieve
neutrality.
Central
core
goal
achieving
neutrality
is
utilization
CO
under
economic
and
sustainable
conditions.
Recently,
strong
need
for
led
a
proliferation
studies
on
direct
conversion
into
carboxylic
acids,
can
effectively
alleviate
create
high‐value
chemicals.
purpose
this
review
present
application
prospects
acids
basic
principles
through
photo‐,
electric‐,
thermal
catalysis.
Special
attention
focused
regulation
strategy
activity
abundant
catalysts
at
molecular
level,
inspiring
preparation
high‐performance
catalysts.
In
addition,
theoretical
calculations,
advanced
technologies,
numerous
typical
examples
are
introduced
elaborate
corresponding
process
influencing
factors
catalytic
activity.
Finally,
challenges
provided
future
development
field.
It
hoped
that
will
contribute
deeper
understanding
inspire
more
innovative
breakthroughs.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Янв. 2, 2024
Abstract
Chemical
recycling
of
plastic
wastes
is
great
significance
for
sustainable
development,
which
also
represents
a
largely
untapped
opportunity
the
synthesis
value-added
chemicals.
Herein,
we
report
novel
and
general
strategy
to
degrade
polyesters
via
directly
breaking
C
alkoxy
-O
bond
by
nucleophilic
substitution
halide
anion
ionic
liquids
under
mild
conditions.
Combined
with
hydrogenation
over
Pd/C,
1-butyl-2,3-dimethylimidazolium
bromide
can
realize
deconstruction
various
including
aromatic
aliphatic
ones,
copolyesters
polyester
mixtures
into
corresponding
carboxylic
acids
alkanes;
meanwhile,
tetrabutylphosphonium
achieve
direct
decomposition
β
-H
alkenes
hydrogen-
metal-free
It
found
that
hydrogen-bonding
interaction
between
liquid
ester
group
in
enhances
nucleophilicity
activates
bond.
The
findings
demonstrate
how
be
viable
feedstock
production
hydrocarbons.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(21), С. 14864 - 14874
Опубликована: Май 16, 2024
The
exploitation
of
carbon
dioxide
(CO2)
as
a
sustainable,
plentiful,
and
harmless
C1
source
for
the
catalytic
synthesis
enantioenriched
carboxylic
acids
has
long
been
acknowledged
pivotal
task
in
synthetic
chemistry.
Herein,
we
present
current-driven
nickel-catalyzed
reductive
carboxylation
reaction
with
CO2
fixation,
facilitating
formation
C(sp3)–C(sp2)
bonds
by
circumventing
handling
moisture-sensitive
organometallic
reagents.
This
electroreductive
protocol
serves
practical
platform,
paving
way
propargylic
(up
to
98%
enantiomeric
excess)
from
racemic
carbonates
CO2.
efficacy
this
transformation
is
exemplified
its
successful
utilization
asymmetric
total
(S)-arundic
acid,
(R)-PIA,
(S)-chizhine
D,
(S)-cochlearin
G,
(S,S)-alexidine,
thereby
underscoring
potential
electrosynthesis
achieve
complex
molecular
architectures
sustainably.
Chemical Science,
Год журнала:
2023,
Номер
14(47), С. 13661 - 13695
Опубликована: Янв. 1, 2023
Frustrated
Lewis
pair
systems
have
been
explored
efficiently
in
homogeneous
and
heterogeneous
conditions
for
the
activation
reduction
of
CO
2
to
various
useful
products
stoichiometric
as
well
catalytic
reactions.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(30), С. 16760 - 16770
Опубликована: Июль 24, 2023
The
need
for
carbon-labeled
radiotracers
is
increasingly
higher
in
drug
discovery
and
development
(carbon-14,
β-,
t1/2
=
5730
years)
as
well
positron
emission
tomography
(PET)
vivo
molecular
imaging
applications
(carbon-11,
β+,
20.4
min).
However,
the
structural
diversity
of
still
systematically
driven
by
narrow
available
labeled
sources
methodologies.
In
this
context,
emergence
carbon
dioxide
radical
anion
chemistry
might
set
forth
potential
unexplored
opportunities.
Based
on
a
dynamic
isotopic
equilibration
between
formate
salts
[13C,
14C,
11C]CO2,
C-labeled
CO2•-
could
be
accessed
under
extremely
mild
conditions
within
seconds.
This
methodology
was
successfully
applied
to
hydrocarboxylation
dicarboxylation
reactions
late-stage
isotope
labeling
pharmaceutically
relevant
compounds.
relevance
method
radiochemistry
showcased
whole-body
PET
biodistribution
profile
[11C]oxaprozin
mice.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
63(4)
Опубликована: Окт. 9, 2023
The
advancement
of
sustainable
photoredox
catalysis
in
synthetic
organic
chemistry
has
evolved
immensely
because
the
development
versatile
and
cost-effective
reagents.
In
recent
years,
a
substantial
effort
been
dedicated
to
exploring
utility
formic
acid
salts
various
photochemical
reactions.
this
context,
formates
have
demonstrated
diverse
capabilities,
functioning
as
reductants,
sources
carbonyl
groups,
reagents
for
hydrogen
atom
transfer.
Notably,
CO
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Ноя. 22, 2023
Abstract
Direct
utilization
of
CO
2
into
organic
synthesis
finds
enormous
applications
to
synthesize
pharmaceuticals
and
fine
chemicals.
However,
pure
gas
is
essential
achieve
these
transformations,
the
purification
highly
cost
energy
intensive.
Considering
this,
we
describe
a
straightforward
synthetic
route
for
γ-lactams,
pivotal
core
structure
bioactive
molecules,
by
using
commercially
available
starting
materials
(alkenes
amines)
impure
stream
(exhaust
collected
from
car)
as
carbon
source.
This
blueprint
features
broad
scope,
excellent
functional
group
compatibility
application
late-stage
transformation
existing
natural
products
functionalized
γ-lactams.
We
believe
that
our
strategy
will
provide
direct
access
γ-lactams
in
very
sustainable
way
also
enhance
Carbon
Capture
Utilization
(CCU)
strategy.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Фев. 17, 2024
α,α-Disubstituted
α-amino
acids
(α-AAs)
have
improved
properties
compared
to
other
types
of
amino
acids.
They
serve
as
modifiers
peptide
conformation
and
precursors
bioactive
compounds.
Therefore,
it
has
been
a
long-standing
goal
construct
this
highly
valuable
scaffold
efficiently
in
organic
synthesis
drug
discovery.
However,
access
α,α-disubstituted
α-AAs
is
challenging
largely
unexplored
due
their
steric
constraints.
To
overcome
these,
remarkable
advances
made
the
last
decades.
Emerging
strategies
such
synergistic
enantioselective
catalysis,
visible-light-mediated
photocatalysis,
metal-free
methodologies
CO
ACS Catalysis,
Год журнала:
2023,
Номер
13(12), С. 7917 - 7928
Опубликована: Май 30, 2023
This
Viewpoint
discusses
the
implications
of
net
zero
energy
transition
on
traditional
chemical
feedstocks
and
catalytic
elements.
While
full
impact
upcoming
changes
is
difficult
to
assess,
some
trends
from
scenarios
already
underway
can
be
mapped.
For
example,
a
steady
growth
in
electric
passenger
vehicles
will
diminish
transportation-related
petroleum
refining
output,
which
could
then
create
feedstock
gaps
supply/demand
dynamics
certain
critical
metals.
These
impacts
present
unexpected
opportunities
for
emerging
such
as
biomass,
sequestered
CO2,
recycled
carbon
bridge
supply
gaps,
even
within
next
decade.
Further,
metals
Pd,
Rh,
Pt
displaced
automotive
exhaust
converter
applications
potentially
become
more
available
producing
chemicals
aviation
fuels
feedstocks.
At
same
time,
Co
Ni,
are
currently
considered
earth
abundant,
face
increasing
demand
storage
thus
less
attractive
applications.
The
availability
carbon-free
hydrogen
oxygen
facilitate
march
toward
decarbonization
industry.
Finally,
enormity
assets
offers
possibility
repurposing
them
process
disruptions
have
profound
future
catalysis
research
must
well-guided
industrial
sustainability.