Molecules,
Journal Year:
2023,
Volume and Issue:
28(17), P. 6252 - 6252
Published: Aug. 25, 2023
The
review
covers
research
published
since
2017
and
is
focused
on
enantioselective
synthesis
using
radical
reactions.
It
describes
recent
approaches
to
the
asymmetric
of
chiral
molecules
based
application
metal
catalysis,
dual
organocatalysis
finally,
pure
including
enzyme
catalysis.
This
focuses
synthetic
aspects
methodology
tries
show
which
compounds
can
be
obtained
in
enantiomerically
enriched
forms.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 1875 - 1924
Published: Aug. 6, 2021
Direct
photocatalyzed
hydrogen
atom
transfer
(d-HAT)
can
be
considered
a
method
of
choice
for
the
elaboration
aliphatic
C–H
bonds.
In
this
manifold,
photocatalyst
(PCHAT)
exploits
energy
photon
to
trigger
homolytic
cleavage
such
bonds
in
organic
compounds.
Selective
bond
may
achieved
by
judicious
abstractor
(key
parameters
are
electronic
character
and
molecular
structure),
as
well
reaction
additives.
Different
classes
PCsHAT
available,
including
aromatic
ketones,
xanthene
dyes
(Eosin
Y),
polyoxometalates,
uranyl
salts,
metal-oxo
porphyrin
tris(amino)cyclopropenium
radical
dication.
The
processes
(mainly
C–C
formation)
most
cases
carried
out
under
mild
conditions
with
help
visible
light.
aim
review
is
offer
comprehensive
survey
synthetic
applications
d-HAT.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
122(2), P. 1543 - 1625
Published: Oct. 8, 2021
In
recent
years,
visible
light-induced
transition
metal
catalysis
has
emerged
as
a
new
paradigm
in
organic
photocatalysis,
which
led
to
the
discovery
of
unprecedented
transformations
well
improvement
known
reactions.
this
subfield
complex
serves
double
duty
by
harvesting
photon
energy
and
then
enabling
bond
forming/breaking
events
mostly
via
single
catalytic
cycle,
thus
contrasting
established
dual
photocatalysis
an
exogenous
photosensitizer
is
employed.
addition,
approach
often
synergistically
combines
catalyst–substrate
interaction
with
photoinduced
process,
feature
that
uncommon
conventional
photoredox
chemistry.
This
Review
describes
early
development
advances
emerging
field.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(17), P. 7358 - 7426
Published: Jan. 1, 2022
Transition
metal
catalysis
has
contributed
immensely
to
C-C
bond
formation
reactions
over
the
last
few
decades,
and
alkylation
is
no
exception.
The
superiority
of
such
methodologies
traditional
evident
from
minimal
reaction
steps,
shorter
times,
atom
economy
while
also
allowing
control
regio-
stereo-selectivity.
In
particular,
hydrocarbonation
alkenes
grabbed
increased
attention
due
its
fundamental
ability
effectively
selectively
synthesise
a
wide
range
industrially
pharmaceutically
relevant
moieties.
This
review
attempts
provide
scientific
viewpoint
systematic
analysis
recent
developments
in
transition-metal-catalyzed
various
C-H
bonds
using
simple
activated
olefins.
key
features
mechanistic
studies
involved
these
transformations
are
described
briefly.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(12), P. 7331 - 7336
Published: Jan. 1, 2024
A
novel
photocatalytic
acylation
strategy
was
developed
harnessing
tetrabutylammonium
decatungstate
(TBADT)
as
a
hydrogen
atom
transfer
(HAT)
photocatalyst
to
facilitate
the
direct
coupling
of
aldehydes
with
N-heterocycles
at
ambient
temperature.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(29), P. 15742 - 15753
Published: July 11, 2023
Enantioselective
C–H
oxidation
is
a
standing
chemical
challenge
foreseen
as
powerful
tool
to
transform
readily
available
organic
molecules
into
precious
oxygenated
building
blocks.
Here,
we
describe
catalytic
enantioselective
hydroxylation
of
tertiary
bonds
in
cyclohexane
scaffolds
with
H2O2,
an
evolved
manganese
catalyst
that
provides
structural
complementary
the
substrate
similarly
lock-and-key
recognition
operating
enzymatic
active
sites.
Theoretical
calculations
unveil
enantioselectivity
governed
by
precise
fitting
scaffold
site,
through
network
weak
non-covalent
interactions.
Stereoretentive
C(sp3)–H
results
single-step
generation
multiple
stereogenic
centers
(up
4)
can
be
orthogonally
manipulated
conventional
methods
providing
rapid
access,
from
single
precursor
variety
chiral
scaffolds.
Organic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(18), P. 5278 - 5305
Published: Jan. 1, 2024
This
review
summarizes
the
latest
methodological
advances
in
photocatalytic
C(sp
3
)–H
functionalization,
with
a
particular
emphasis
on
formation
of
C–P,
C–B,
C–S
bonds,
etc
.,
and
some
prominent
efforts
asymmetric
C–H
functionalization.
Organic & Biomolecular Chemistry,
Journal Year:
2024,
Volume and Issue:
22(19), P. 3799 - 3842
Published: Jan. 1, 2024
Tetrabutylammonium
decatungstate
(TBADT)
has
recently
emerged
as
an
intriguing
photocatalyst
under
visible-light
or
near-visible-light
irradiation
in
a
wide
range
of
organic
reactions
that
were
previously
not
conceivable.
Given
its
ability
to
absorb
visible
light
and
excellent
effectiveness
activating
unactivated
chemical
bonds,
it
is
promising
addition
traditional
photocatalysts.
This
review
covers
some
the
contemporary
developments
photocatalysis
enabled
by
TBADT
catalyst
2023,
with
contents
organized
reaction
type.
