Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 1752 - 1829
Published: Sept. 21, 2021
Chemically
modified
biomacromolecules─i.e.,
proteins,
nucleic
acids,
glycans,
and
lipids─have
become
crucial
tools
in
chemical
biology.
They
are
extensively
used
not
only
to
elucidate
cellular
processes
but
also
industrial
applications,
particularly
the
context
of
biopharmaceuticals.
In
order
enable
maximum
scope
for
optimization,
it
is
pivotal
have
a
diverse
array
biomacromolecule
modification
methods
at
one's
disposal.
Chemistry
has
driven
many
significant
advances
this
area,
especially
recently,
numerous
novel
visible-light-induced
photochemical
approaches
emerged.
these
reactions,
light
serves
as
an
external
source
energy,
enabling
access
highly
reactive
intermediates
under
exceedingly
mild
conditions
with
exquisite
spatiotemporal
control.
While
UV-induced
transformations
on
biomacromolecules
date
back
decades,
visible
unmistakable
advantage
being
considerably
more
biocompatible,
spectrum
visible-light-driven
now
available,
chiefly
proteins
acids.
This
review
will
discuss
modifications
native
functional
groups
(FGs),
including
functionalization,
labeling,
cross-linking
techniques
well
utility
oxidative
degradation
mediated
by
photochemically
generated
oxygen
species.
Furthermore,
non-native,
bioorthogonal
FGs
be
addressed,
photoclick
chemistry
DNA-encoded
library
synthesis
that
allow
manipulation
activity
biomacromolecule.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 2752 - 2906
Published: Aug. 10, 2021
Photoinduced
chemical
transformations
have
received
in
recent
years
a
tremendous
amount
of
attention,
providing
plethora
opportunities
to
synthetic
organic
chemists.
However,
performing
photochemical
transformation
can
be
quite
challenge
because
various
issues
related
the
delivery
photons.
These
challenges
barred
widespread
adoption
steps
industry.
past
decade,
several
technological
innovations
led
more
reproducible,
selective,
and
scalable
photoinduced
reactions.
Herein,
we
provide
comprehensive
overview
these
exciting
advances,
including
flow
chemistry,
high-throughput
experimentation,
reactor
design
scale-up,
combination
photo-
electro-chemistry.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 1626 - 1653
Published: July 6, 2021
For
molecules
with
a
singlet
ground
state,
the
population
of
triplet
states
is
mainly
possible
(a)
by
direct
excitation
and
subsequent
intersystem
crossing
or
(b)
energy
transfer
from
an
appropriate
sensitizer.
The
latter
scenario
enables
catalytic
photochemical
reaction
in
which
sensitizer
adopts
role
catalyst
undergoing
several
cycles
photon
absorption
to
substrate.
If
product
molecule
triplet-sensitized
process
chiral,
this
can
proceed
enantioselectively
upon
judicious
choice
chiral
An
enantioselective
also
occur
dual
approach
which,
apart
achiral
sensitizer,
second
activates
substrate
toward
sensitization.
Although
idea
reactions
via
intermediates
has
been
pursued
for
more
than
50
years,
notable
selectivities
exceeding
90%
enantiomeric
excess
(ee)
have
only
realized
past
decade.
This
review
attempts
provide
comprehensive
survey
on
various
were
rendered
Chemical Society Reviews,
Journal Year:
2020,
Volume and Issue:
50(2), P. 766 - 897
Published: Dec. 22, 2020
Recent
developments
and
future
prospects
of
visible-light
photocatalysis
in
the
late-stage
functionalization
pharmaceuticals
natural
bioactive
compounds.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(8), P. 4237 - 4352
Published: Jan. 24, 2023
The
emergence
of
modern
photocatalysis,
characterized
by
mildness
and
selectivity,
has
significantly
spurred
innovative
late-stage
C–H
functionalization
approaches
that
make
use
low
energy
photons
as
a
controllable
source.
Compared
to
traditional
strategies,
photocatalysis
paves
the
way
toward
complementary
and/or
previously
unattainable
regio-
chemoselectivities.
Merging
compelling
benefits
with
workflow
offers
potentially
unmatched
arsenal
tackle
drug
development
campaigns
beyond.
This
Review
highlights
photocatalytic
strategies
small-molecule
drugs,
agrochemicals,
natural
products,
classified
according
targeted
bond
newly
formed
one.
Emphasis
is
devoted
identifying,
describing,
comparing
main
mechanistic
scenarios.
draws
critical
comparison
between
established
ionic
chemistry
photocatalyzed
radical-based
manifolds.
aims
establish
current
state-of-the-art
illustrate
key
unsolved
challenges
be
addressed
in
future.
authors
aim
introduce
general
readership
functionalization,
specialist
practitioners
evaluation
methodologies,
potential
for
improvement,
future
uncharted
directions.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 2650 - 2694
Published: Aug. 27, 2021
Geometrical
E
→
Z
alkene
isomerization
is
intimately
entwined
in
the
historical
fabric
of
organic
photochemistry
and
enjoying
a
renaissance
(Roth
et
al.
Angew.
Chem.,
Int.
Ed.
Engl.
1989
28,
1193–1207).
This
consequence
fundamental
stereochemical
importance
Z-alkenes,
juxtaposed
with
frustrations
thermal
reactivity
that
are
rooted
microscopic
reversibility.
Accessing
excited
state
paradigms
allow
this
latter
obstacle
to
be
circumnavigated
by
exploiting
subtle
differences
photophysical
behavior
substrate
product
chromophores:
provides
molecular
basis
for
directionality.
While
direct
irradiation
operationally
simple,
photosensitization
via
selective
energy
transfer
enables
augmentation
repertoire
include
substrates
not
directly
photons.
Through
sustained
innovation,
an
impressive
portfolio
tailored
small
molecule
catalysts
range
triplet
energies
now
widely
available
facilitate
contra-thermodynamic
thermo-neutral
reactions
generate
Z-alkene
fragments.
review
intended
serve
as
practical
guide
covering
geometric
alkenes
enabled
catalysis
from
2000
2020,
logical
sequel
excellent
treatment
Dugave
Demange
(Chem.
Rev.
2003
103,
2475–2532).
The
mechanistic
foundations
underpinning
selectivity
discussed
together
induction
models
rationales
explain
counterintuitive
directionality
these
processes
which
very
distinguish
product.
Implications
subsequent
stereospecific
transformations,
application
total
synthesis,
regioselective
polyene
isomerization,
spatiotemporal
control
pre-existing
configuration
broader
sense
discussed.
ACS Central Science,
Journal Year:
2021,
Volume and Issue:
7(3), P. 432 - 444
Published: Feb. 22, 2021
Asymmetric
catalysis
has
been
recognized
as
the
most
enabling
strategy
for
accessing
chiral
molecules
in
enantioenriched
forms.
Catalytic
asymmetric
dearomatization
is
an
emerging
and
dynamic
research
subject
catalysis,
which
received
considerable
attention
recent
years.
The
direct
transformations
from
readily
available
aromatic
feedstocks
to
structurally
diverse
three-dimensional
polycyclic
make
catalytic
reactions
of
broad
interest
both
organic
synthesis
medicinal
chemistry.
However,
inherent
difficulty
disruption
aromaticity
demands
a
large
energy
input
during
process,
might
be
incompatible
with
conditions
generally
required
by
catalysis.
In
this
Outlook,
we
will
discuss
representative
strategies
examples
various
compounds
try
convince
readers
that
overcoming
above
obstacles,
could
advance
chemical
sciences
many
respects.
Organic & Biomolecular Chemistry,
Journal Year:
2019,
Volume and Issue:
17(29), P. 6936 - 6951
Published: Jan. 1, 2019
This
minireview
highlights
the
recent
advances
in
chemistry
of
Hantzsch
esters
photoredox
catalyzed
organic
synthesis,
with
particular
emphasis
placed
on
reaction
mechanisms.