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
2H‐Azirines: Recent Progress in Synthesis and Applications
European Journal of Organic Chemistry,
Год журнала:
2024,
Номер
27(11)
Опубликована: Янв. 29, 2024
Abstract
2H
‐arizines
are
important
three‐membered
heterocycles
in
organic
chemistry.
Recently,
many
advances
the
synthesis
and
functionalization
of
have
been
reported.
Neber
rearrangement,
isomerization
isoxazole,
oxidation
enamine,
C−H
bond
activation,
decomposition
vinyl
azide,
alkyne,
multi‐step
developed
for
efficient
assembly
‐azirines.
As
versatile
highly
strained
unsaturated
heterocycles,
‐azirines
can
be
used
as
distinctive
building
blocks
towards
significant
functional
groups,
attracted
extensive
attention
fabrication
numerous
heterocycles.
Recent
studies
focused
on
[3+n]
ring‐expansion
reactions,
nucleophilic
addition
C=N
double
or
continuous
followed
by
cyclization,
ring‐opening
to
acyclic
compounds,
substitution
sp
3
‐C−H
One
most
critical
challenges
is
seeking
a
selective
opening
specific
three
bonds
azirine
circle,
some
what
achieved
basis
metal
catalyst,
photocatalysis,
combination
catalyst
photocatalysis.
In
this
review,
recent
involving
reactivity
accompanied
with
breakthroughs
summarized.
The
review
mainly
covers
period
from
2019
2023.
Язык: Английский
Applications of phenyliodine(III) diacetate in heterocyclic ringformations: An updatefrom 2015 to date
Journal of Heterocyclic Chemistry,
Год журнала:
2023,
Номер
60(8), С. 1326 - 1355
Опубликована: Янв. 27, 2023
Abstract
Diacetoxyiodobenzene
(
PhI
OAc
)
2
),
commonly
referred
to
as
DAIB
or
phenyliodine(
III
diacetate
PIDA
is
one
of
the
most
frequently
used
hypervalent
iodines
employed
an
oxidizing
agent
in
organic
chemistry.
In
this
review,
highlighted
exclusively
relation
its
applications
synthesis
involving
heterocyclic
ring
formations
and
critically
in‐depth
examined
from
summer
2015
present
with
a
specific
focus
on
mechanistic
pathway.
Язык: Английский