ACS Applied Polymer Materials,
Год журнала:
2022,
Номер
4(10), С. 7408 - 7416
Опубликована: Сен. 14, 2022
Functionalized
hyper-cross-linked
polymer-supported
metal
complexes
have
been
developed
as
heterogeneous
catalysts
for
organic
synthesis
and
attracted
much
attention.
In
this
regard,
a
phosphine-based
neutral
gold(I)
complex,
Au@HCPs-PPh3,
which
is
synthesized
by
incorporation
of
[(Me2S)AuCl]
into
polymer,
proven
to
be
an
efficient
general
catalyst
the
regioselective
hydration
series
alkynes
ketones.
Furthermore,
recycled
six
times
without
obvious
decrease
in
catalytic
activity.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(9), С. 4607 - 4647
Опубликована: Янв. 1, 2024
This
review
collectively
discussed
the
utilisation
of
alcohols
in
various
organic
transformations
and
their
application
toward
intermediates
drugs,
drug
derivatives
natural
product-like
molecules.
Organic Letters,
Год журнала:
2024,
Номер
26(9), С. 1857 - 1862
Опубликована: Фев. 26, 2024
A
general
method
for
the
hydrogenation
of
quinones
to
hydroquinones
under
atmospheric
pressure
has
been
developed.
In
presence
[Cp*Ir(2,2′-bpyO)(H2O)]
(0.5–1
mol
%),
a
range
products
were
obtained
in
high
yields.
Furthemore,
expansion
this
catalytic
system
1,4-benzoquinone
diimines
was
also
presented.
Functional
groups
bpy
ligand
found
be
crucial
activity
iridium
complexes.
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(28), С. 12929 - 12934
Опубликована: Июль 2, 2024
An
efficient
method
for
the
selective
conversion
of
glycerol,
major
byproduct
biodiesel
manufacturing
process,
to
lactic
acid
in
water
via
acceptorless
dehydrogenation
has
been
developed.
In
presence
a
water-soluble
[Cp*Ir(6,6'-(OH)
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(13)
Опубликована: Фев. 1, 2024
Abstract
The
synthesis
of
mono‐
N
‐methylated
aliphatic
primary
amines
has
traditionally
been
challenging,
requiring
noble
metal
catalysts
and
high‐pressure
H
2
for
achieving
satisfactory
yields
selectivity.
Herein,
we
developed
an
approach
the
selective
coupling
methanol
amines,
without
hydrogen,
using
a
manganese‐based
catalyst.
Remarkably,
up
to
98
%
with
broad
substrate
scope
were
achieved
at
low
catalyst
loadings.
Notably,
due
weak
base‐catalyzed
alcoholysis
formamide
intermediates,
our
novel
protocol
not
only
obviates
addition
but
also
prevents
side
secondary
‐methylation,
supported
by
control
experiments
density
functional
theory
calculations.
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(8), С. 3843 - 3849
Опубликована: Фев. 14, 2024
Upgrading
ethanol
to
n-butanol
as
biofuels
is
an
important
topic
for
sustainable
chemistry.
Herein,
a
Cp*Ir
complex
bearing
functional
2,2′-carbonylbibenzimidazole
ligand
[Cp*Ir(2,2′-COBiBzImH2)Cl][Cl]
was
designed
and
synthesized.
In
the
presence
of
catalyst
(0.1
mol
%)
Cs2CO3
(6
%),
highest
yield
updated
up
37%
with
80%
selectivity.
NH
units
in
are
crucially
catalytic
activity
iridium
complex.
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(26)
Опубликована: Фев. 14, 2024
Abstract
This
review
provides
a
comprehensive
overview
of
mono‐alkylation
methodologies
targeting
crucial
nitrogen
moieties
–
amines,
amides,
and
sulfonamides
found
in
organic
building
blocks
pharmaceuticals.
Emphasizing
the
intersection
chemical
precision
with
drug
discovery,
central
challenge
addressed
is
achieving
one‐pot
mono‐selective
short‐chain
N‐alkylations
(methylations,
ethylations,
n
‐propylations),
preventing
undesired
overalkylation.
Additionally,
sustainable,
safe,
benign
alternatives
to
traditional
alkylating
agents,
including
alcohols,
carbon
dioxide,
carboxylic
acids,
nitriles,
alkyl
phosphates,
quaternary
ammonium
salts,
carbonates,
are
explored.
review,
categorized
by
nature
agent,
aids
researchers
selecting
suitable
methods
for
N‐alkylation.
Inorganic Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
A
water-soluble
iridium
complex
[Cp*Ir(6,6′-(OH)2-2,2′-bpy)(H2O)][OTf]2
was
found
to
be
an
efficient
autotandem
catalyst
for
the
synthesis
of
secondary
alcohols
via
redox
isomerization/atmospheric
hydrogenation
in
water.
The
OH
groups
bpy
ligand
are
a
key
factor
activity
catalyst.
Then,
mechanistic
experiments
and
practical
utilization
catalytic
system
were
presented.
Organic Letters,
Год журнала:
2022,
Номер
24(49), С. 9081 - 9085
Опубликована: Дек. 2, 2022
A
new
strategy
for
the
synthesis
of
N',N'-methylaliphatic
acylhydrazides
from
acylhydrazones
via
transfer
hydrogenation/N-methylation
with
methanol
as
both
hydrogen
source
and
methylating
reagent
has
been
proposed
accomplished.
In
presence
[Cp*Ir(2,2'-bpyO)(H2O)]
(1
mol
%)
Cs2CO3
(0.3
equiv),
a
range
desired
products
were
obtained
in
high
yields.
It
was
also
confirmed
that
functional
units
bpy
ligand
catalyst
are
crucial
catalytic
activity
iridium
complexes.
The
mechanistic
investigation
practical
application
present
system
presented.
