Palladium‐Catalyzed Deuteration of Arylketone Oxime Ethers
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(12)
Published: Jan. 27, 2024
We
report
herein
the
development
of
palladium-catalyzed
deacylative
deuteration
arylketone
oxime
ethers.
This
protocol
features
excellent
functional
group
tolerance,
heterocyclic
compatibility,
and
high
deuterium
incorporation
levels.
Regioselective
some
biologically
important
drugs
natural
products
are
showcased
via
Friedel-Crafts
acylation
subsequent
deuteration.
Vicinal
meta-C-H
bond
functionalization
(including
fluorination,
arylation,
alkylation)
para-C-H
electro-rich
arenes
realized
by
using
ketone
as
both
directing
leaving
group,
which
is
distinct
from
aryl
halide
in
conventional
dehalogenative
Language: Английский
Difluorocarbene-Enabled Dehydration of Primary Amides To Access Nitriles
Bofan Feng,
No information about this author
Huosheng Guo,
No information about this author
Xiaosha Wang
No information about this author
et al.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 16, 2025
A
cost-effective
and
environmentally
friendly
method
for
the
direct
conversion
of
primary
amides
to
nitriles
was
developed
using
commercially
available
non-toxic
ethyl
bromodifluoroacetate
as
a
difluorocarbene
precursor
under
metal-free
ligand-free
conditions.
The
reaction
features
high
yields
tolerates
various
sensitive
moieties,
including
alkyl,
alkenyl,
ether,
sulfone,
sulfoxide,
heteroaryl,
chloro,
bromo,
iodo,
hydroxyl,
nitro,
cyano
groups,
late-stage
modification
complex
molecules
is
also
feasible.
Moreover,
present
effective
on
large
scales,
showing
potential
industrial
application.
Language: Английский
Gold(I)‐Catalyzed Synthesis of Benzofurans from Tetrahydropyranyl (THP) Ethers of o‐Alkynylphenols
Jeremy W. Pisor,
No information about this author
Isabella Garcia,
No information about this author
Kirubel T. Mamo
No information about this author
et al.
Chemistry - An Asian Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 9, 2025
Abstract
The
activation
of
π‐systems
in
alkenes
and
alkynes
by
homogeneous
gold
catalysts
is
a
powerful
tool
for
the
synthesis
benzo‐fused
heterocycles.
Decades
development
area
catalysis
have
brought
an
array
new
with
them
discovery
modes
carbophilic
alkynes,
investigations
previously
unknown
mechanistic
pathways.
In
alignment
these
efforts,
we
report
cyclization
tetrahydropyranyl
ethers
2‐alkynylphenols
to
form
benzofurans
catalyzed
gold(I)–NHC
complex.
reaction
proceeds
efficiently
at
very
low
catalyst
loadings,
products
good
yields.
Language: Английский
Multisite modifications of arenes using ketones as removable handles enabled by Pd and norbornene cooperative catalysis
Kailiang Tao,
No information about this author
Xing Wang,
No information about this author
Huan Liu
No information about this author
et al.
Nature Synthesis,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 25, 2024
Language: Английский
Palladium‐Catalyzed Deuteration of Arylketone Oxime Ethers
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(12)
Published: Jan. 27, 2024
Abstract
We
report
herein
the
development
of
palladium‐catalyzed
deacylative
deuteration
arylketone
oxime
ethers.
This
protocol
features
excellent
functional
group
tolerance,
heterocyclic
compatibility,
and
high
deuterium
incorporation
levels.
Regioselective
some
biologically
important
drugs
natural
products
are
showcased
via
Friedel–Crafts
acylation
subsequent
deuteration.
Vicinal
meta
‐C−H
bond
functionalization
(including
fluorination,
arylation,
alkylation)
para
electro‐rich
arenes
realized
by
using
ketone
as
both
directing
leaving
group,
which
is
distinct
from
aryl
halide
in
conventional
dehalogenative
Language: Английский
Nickel‐Catalyzed Reductive Coupling of Vinyl Triflates and 1,4‐Dicyanobenzene to Access Alkenyl Nitriles
Advanced Synthesis & Catalysis,
Journal Year:
2024,
Volume and Issue:
366(3), P. 431 - 437
Published: Jan. 1, 2024
Abstract
We
report
a
vinyl
cyanation
reaction
of
triflates
and
readily
available
1,4‐dicyanobenzene
through
nickel‐catalyzed
reductive
coupling
process.
The
is
operated
under
mild
conditions
with
remarkable
functional‐group
compatibility.
Cyclic
various
ring
sizes
substituents
at
different
positions
all
reacted
smoothly.
synthetic
utility
demonstrated
by
the
derivatization
pharmaceutical
natural
compounds,
scale‐up
synthesis,
functional
group
transformations.
Preliminary
mechanistic
studies
demonstrate
that
are
more
reactive
than
towards
oxidative
addition
to
nickel
catalyst.
Language: Английский
Polyfluorinated benzoic acids as promising reagents for organic synthesis and medicinal chemistry
Russian Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
93(8), P. RCR5131 - RCR5131
Published: Aug. 1, 2024
Polyfluoroaromatic
compounds
occupy
a
special
place
in
organic
synthesis
due
to
wide
range
of
their
chemical
transformations
and
unique
biological
properties.
The
introduction
the
carboxyl
function
into
polyfluoroarenes
allows
further
diversification
chemistry
these
compounds.
This
review
summarizes
data
on
polyfluorobenzoic
acids,
including
derivatives
polyfluorosalicylic
acids.
reactions
esterification,
amidation,
reduction,
decarboxylation,
metal-catalyzed
decarboxylative
cross-coupling,
C–H
functionalization,
reductive
defluorination,
nucleophilic
aromatic
substitution,
heterocyclization
complex
formation
are
considered.
Reactivity
features
polyfluorobenzoates
comparison
non-fluorinated
counterparts
highlighted.
potential
for
practical
applications
acid
derivatives,
primarily
as
biologically
active
compounds,
is
presented.
<br>
Bibliography
includes
300
references.
Language: Английский
Total Synthesis of Syringin and Its Natural Analogues via C—C Bond Activation of Aryl Ketones†
Zhenyu Wang,
No information about this author
Yi Sun,
No information about this author
Guodong Sun
No information about this author
et al.
Chinese Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
41(24), P. 3587 - 3592
Published: Aug. 24, 2023
Comprehensive
Summary
Syringin
is
found
in
the
root
of
Acanthopanax
senticosus
(Rupr.
Maxim.)
Harms
and
belongs
to
lignin
chemical
compound
with
many
biological
activities.
In
this
study,
we
employed
commercially
available
starting
materials
accomplished
total
synthesis
syringin
5
steps
an
overall
yield
58%.
Palladium‐catalyzed
C(O)–C
bond
activation
subsequent
cross
coupling
reaction
key
construct
its
natural
analogues.
Language: Английский
C–X (X = C, O, S, N, B, P) Bond Deuteration and Late‐Stage Applications
Xu Hui,
No information about this author
Yun‐Qian Zhang,
No information about this author
Hui‐Xiong Dai
No information about this author
et al.
European Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 7, 2024
Abstract
Precise
deuterium
labeling
has
gained
significant
attentions
owing
to
the
wide
applications
in
organic
synthesis,
medicinal
chemistry,
and
materials.
C−C
C‐heteroatom
bonds
constitute
skeleton
of
molecules.
This
review
summarizes
advancements
on
bond
deuterations
as
well
their
late‐stage
natural
products
pharmaceutically
relevant
Language: Английский