3-(Pyridin-2-yl)-1,2,4-triazine derivatives as promising ligands for iridium(iii) complexes
Russian Chemical Bulletin,
Journal Year:
2025,
Volume and Issue:
74(2), P. 411 - 417
Published: Feb. 1, 2025
Language: Английский
High-Throughput Enabled Iridium-Catalyzed C–H Borylation Platform for Late-Stage Functionalization
Janis M. Zakis,
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Rebeka Anna Līpiņa,
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Sharon Bell
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et al.
ACS Catalysis,
Journal Year:
2025,
Volume and Issue:
15(4), P. 3525 - 3534
Published: Feb. 12, 2025
In
this
work,
we
present
a
dedicated,
high-throughput
reaction
optimization
platform
allowing
for
the
rapid
evaluation
of
regiodivergent
C–H
borylation
protocols
while
minimizing
amount
starting
material
required.
The
workflow
was
applied
to
diverse
set
fragment-like
compounds,
pharmaceuticals,
and
agrochemicals,
its
practicality
demonstrated
by
successfully
isolating
36
derivatives
bioactive
compounds.
Leveraging
informer
library
approach,
provide
comprehensive,
side-by-side
comparison
catalytic
methods,
revealing
insights
into
strengths,
limitations,
versatility
each
protocol.
Surprising
reactivity
patterns,
effectiveness
ligand-free
borylation,
utility
previously
reported
directed
catalysts
outside
their
expected
substrate
scope
have
been
noticed.
This
study
highlights
potential
dedicated
platforms
expand
practical
late-stage
functionalization
pharmaceutical
agrochemical
research.
Language: Английский
BBr3-Mediated ortho C–H Borylation of Benzamides
Yixuan Liang,
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Chengyu Du,
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C. Dong
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et al.
Organic Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 25, 2025
We
have
developed
a
BBr3-mediated,
metal-free
ortho
C-H
borylation
of
benzamides,
enabling
the
synthesis
wide
range
ortho-borylated
benzamides
in
moderate
to
good
yields.
This
transformation
offers
convenient
strategy
for
accessing
functionalized
which
are
valuable
intermediates
pharmaceuticals,
agrochemicals,
and
fine
chemical
synthesis.
Language: Английский
Repurposing a supramolecular iridium catalyst via secondary Zn⋯OC weak interactions between the ligand and substrate leads to ortho-selective C(sp2)–H borylation of benzamides with unusual kinetics
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(30), P. 11794 - 11806
Published: Jan. 1, 2024
Supramolecular
catalysts
based
on
a
zinc-porphyrin
molecular
recognition
site
and
catalytically
active
iridium
enabled
the
selective
ortho
-C–H
borylation
of
benzamides
under
regime
in
which
C–H
activation
step
is
not
rate-determining.
Language: Английский
Do we really need ligands in Ir-catalyzed C–H borylation?
Published: May 29, 2024
Direct
borylation
of
C–H
bonds
is
a
privileged
strategy
to
access
versatile
building
blocks
and
valuable
derivatives
complex
molecules
(late-stage
functionalization,
metabolite
synthesis).
This
perspective
aims
provide
an
overview
classification
the
catalytic
systems
developed
in
this
fast-growing
area
research.
Unexpected
selectivity
differences
between
two
established
directed-borylation
have
been
discovered
using
high-throughput
experimentation
highlighting
importance
classical
control
experiments
catalysis
Language: Английский
Do we really need ligands in Ir-catalyzed C–H borylation?
CHIMIA International Journal for Chemistry,
Journal Year:
2024,
Volume and Issue:
78(7-8), P. 513 - 517
Published: Aug. 21, 2024
Direct
borylation
of
C–H
bonds
is
a
privileged
strategy
to
access
versatile
building
blocks
and
valuable
derivatives
complex
molecules
(late-stage
functionalization,
metabolite
synthesis).
This
perspective
aims
provide
an
overview
classification
the
catalytic
systems
developed
in
this
fast-growing
area
research.
Unexpected
selectivity
differences
between
two
established
directed-borylation
have
been
discovered
using
high-throughput
experimentation
highlighting
importance
classical
control
experiments
catalysis
Language: Английский
Synthesis and luminescence of 3-(pyridine-2-yl)-1,2,4-triazine-based Ir(III) complexes
Chimica Techno Acta,
Journal Year:
2024,
Volume and Issue:
12(1)
Published: Dec. 18, 2024
A
series
of
novel
iridium(III)
complexes
containing
5-N-(aryl)-amino-
or
5-cycloamino-3-(pyridine-2-yl)-1,2,4-triazine
ligands
was
obtained.
These
exhibited
red
luminescence
in
solution
as
well
the
solid
state.
Based
on
DFT
studies
it
suggested
that
N(2)
atom
1,2,4-triazine
core
is
preferable
to
N(4)
one
coordination
site
Ir(III).
Language: Английский