Recent Progress in Synthetic Applications of Hypervalent Iodine(III) Reagents
Chemical Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 13, 2024
Hypervalent
iodine(III)
compounds
have
found
wide
application
in
modern
organic
chemistry
as
environmentally
friendly
reagents
and
catalysts.
iodine
are
commonly
used
synthetically
important
halogenations,
oxidations,
aminations,
heterocyclizations,
various
oxidative
functionalizations
of
substrates.
Iodonium
salts
arylating
reagents,
while
iodonium
ylides
imides
excellent
carbene
nitrene
precursors.
Various
derivatives
benziodoxoles,
such
azidobenziodoxoles,
trifluoromethylbenziodoxoles,
alkynylbenziodoxoles,
alkenylbenziodoxoles
group
transfer
the
presence
transition
metal
catalysts,
under
metal-free
conditions,
or
using
photocatalysts
photoirradiation
conditions.
Development
hypervalent
catalytic
systems
discovery
highly
enantioselective
reactions
chiral
represent
a
particularly
recent
achievement
field
chemistry.
Chemical
transformations
promoted
by
many
cases
unique
cannot
be
performed
any
other
common,
non-iodine-based
reagent.
This
review
covers
literature
published
mainly
last
7-8
years,
between
2016
2024.
Язык: Английский
PIDA as an Iodinating Reagent: Visible‐Light‐Induced Iodination of Pyrazolo[1,5‐a]pyrimidines and Other Heteroarenes
Chemistry - An Asian Journal,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 4, 2024
We
have
developed
a
visible-light-mediated
convenient
and
efficient
strategy
for
the
iodination
of
heteroarenes
using
diacetoxyiodobenzene
(PIDA)
under
photocatalyst-free
conditions.
This
unique
approach
is
first
report
on
photocatalytic
C-H
employing
PIDA
as
iodinating
agent.
The
new
applicable
to
wide
range
pyrazolo[1,5-a]pyrimidine
derivatives
with
various
functionalities.
Iodination
other
electron-rich
heterocycles
like
imidazo[1,2-a]pyridine,
imidazo[1,2-a]pyrimidine,
imidazo[2,1-b]thiazole,
benzo[d]imidazo[2,1-b]thiazole,
pyrazoles
has
been
accomplished
this
benign
protocol.
usefulness
3-iodo
synthetic
intermediate
in
synthesizing
functionalized
pyrazolo[1,5-a]pyrimidines
demonstrated.
Язык: Английский