Inorganic Chemistry,
Journal Year:
2021,
Volume and Issue:
60(15), P. 10958 - 10969
Published: July 16, 2021
The
mechanism
of
the
aluminum-mediated
hydroboration
terminal
alkynes
was
investigated
using
a
series
novel
aluminum
amidinate
hydride
and
alkyl
complexes
bearing
symmetric
asymmetric
ligands.
new
were
fully
characterized
found
to
facilitate
formation
(E)-vinylboronate
product,
with
rates
orders
reaction
linked
complex
size
stability.
Kinetic
analysis
stoichiometric
reactions
used
elucidate
mechanism,
which
we
propose
proceed
via
initial
an
Al-borane
adduct.
Additionally,
most
unstable
promote
decomposition
pinacolborane
substrate
borane
(BH3),
can
then
catalyze
reaction.
This
is
in
contrast
previously
reported
hydride-catalyzed
reactions,
are
proposed
acetylide,
or
by
hydroalumination
form
vinylboronate
ester
as
first
step
catalytic
cycle.
Chemical Reviews,
Journal Year:
2021,
Volume and Issue:
121(21), P. 13238 - 13341
Published: Oct. 7, 2021
Organoboron
reagents
represent
a
unique
class
of
compounds
because
their
utility
in
modern
synthetic
organic
chemistry,
often
affording
unprecedented
reactivity.
The
transformation
the
carbon–boron
bond
into
carbon–X
(X
=
C,
N,
and
O)
stereocontrolled
fashion
has
become
invaluable
medicinal
agrochemistry,
natural
products
chemistry
as
well
materials
science.
Over
past
decade,
first-row
d-block
transition
metals
have
increasingly
widely
used
catalysts
for
formation
bond,
traditionally
catalyzed
by
expensive
precious
metals.
This
recent
focus
on
alternative
enabled
growth
fundamental
methods
organoboron
chemistry.
review
surveys
current
state-of-the-art
use
element-based
bonds.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(21), P. 8877 - 8922
Published: Jan. 1, 2022
This
review
covers
the
development
of
transition
metal-catalysed
hydroboration
reaction,
from
its
beginnings
in
1980s
to
more
recent
developments
including
earth-abundant
catalysts
and
an
ever-expanding
array
substrates.
Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
122(9), P. 8261 - 8312
Published: March 7, 2022
The
addition
of
a
B–H
bond
to
an
unsaturated
(polarized
or
unpolarized)
is
powerful
and
atom-economic
tool
for
the
synthesis
organoboranes.
In
recent
years,
s-block
organometallics
have
appeared
as
alternative
catalysts
transition-metal
complexes,
which
traditionally
catalyze
hydroboration
bonds.
Because
rapid
development
in
field
bonds
catalyzed
by
alkali
(Li,
Na,
K)
alkaline
earth
(Mg,
Ca,
Sr,
Ba)
metals,
we
provide
detailed
updated
comprehensive
review
that
covers
synthesis,
reactivity,
application
metal
polarized
well
carbon–carbon
Moreover,
describe
main
reaction
mechanisms,
providing
valuable
insight
into
reactivity
catalysts.
Finally,
compare
these
complexes
with
other
redox-neutral
catalytic
systems
based
on
p-block
metals
including
aluminum
f-block
lanthanides
early
actinides.
this
review,
aim
comprehensive,
authoritative,
critical
assessment
state
art
within
highly
interesting
research
area.
Advanced Synthesis & Catalysis,
Journal Year:
2021,
Volume and Issue:
363(21), P. 4818 - 4840
Published: Sept. 16, 2021
Abstract
Hydroboration
of
alkynes
is
special
interest
to
researchers
since
it
the
most
straightforward
process
for
synthesis
highly
important
vinylborane
synthetic
intermediate
compounds.
It
significant
in
terms
both
regioselectivity
and
stereoselectivity,
several
positional
isomers
are
formed
during
hydroboration.
Given
importance
this
class
compounds,
an
extensive
study
has
been
carried
out
regarding
catalytic
condition
development
detailed
mechanistic
studies
selectively
obtaining
a
single
isomer.
This
review
comprehensively
summarizes
regioselective
stereoselective
hydroboration
alkynes.
aimed
at
giving
readers
accurate
knowledge
systems
available
certain
We
anticipate
that
inclusive
will
encourage
explore
more
new
types
achieve
remarkable
magnified
image
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(3), P. 869 - 994
Published: Jan. 1, 2022
This
review
highlights
the
hydroelementation
reactions
of
conjugated
and
separated
diynes,
which
depending
on
process
conditions,
catalytic
system,
as
well
type
reagents,
leads
to
formation
various
products:
enynes,
dienes,
allenes,
polymers,
or
cyclic
compounds.
The
presence
two
triple
bonds
in
diyne
structure
makes
these
compounds
important
reagents
but
selective
product
is
often
difficult
owing
problems
associated
with
maintaining
appropriate
reaction
regio-
stereoselectivity.
Herein
we
this
topic
gain
knowledge
reactivity
diynes
systematise
range
information
relating
their
use
reactions.
divided
according
addition
E-H
(E
=
Mg,
B,
Al,
Si,
Ge,
Sn,
N,
P,
O,
S,
Se,
Te)
bond
bond(s)
diyne,
reagent
used,
formed.
Not
only
are
comprehensively
discussed,
synthetic
potential
obtained
products
also
presented.
majority
published
research
included
within
review,
illustrating
limitations
processes,
intent
showcase
power
transformations
synthesis
materials
chemistry.
ACS Catalysis,
Journal Year:
2025,
Volume and Issue:
unknown, P. 976 - 981
Published: Jan. 1, 2025
Triethoxysilane
was
found
to
be
an
efficient
catalyst
for
the
synthesis
of
E-alkenyl-
and
alkyl-di-boronate
esters
by
single
sequential
hydroboration
terminal
alkynes,
respectively,
with
pinacolborane.
Mechanistic
studies
support
that
formation
diboronate
proceeds
a
double
pathway
steric
electronic
profile
at
Si
being
key
enabling
second
step.
Weak
non-covalent
interactions
involving
C≡C
or
C═C
bonds
in
alkynes
alkenylboronate
have
been
identified
as
responsible
substrate
activation
toward
addition
HBPin.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(29), P. 16035 - 16043
Published: April 24, 2021
Reductive
transformations
of
easily
available
oxidized
matter
are
at
the
heart
synthetic
manipulation
and
chemical
valorization.
The
applications
catalytic
hydrofunctionalization
benefit
from
use
liquid
reducing
agents
operationally
facile
setups.
Metal-catalyzed
hydroborations
provide
a
highly
prolific
platform
for
reductive
valorizations
stable
C=X
electrophiles.
Here,
we
report
an
especially
facile,
broad-scope
reduction
various
functions
including
carbonyls,
carboxylates,
pyridines,
carbodiimides,
carbonates
under
very
mild
conditions
with
inexpensive
pre-catalyst
Mn(hmds)2
.
reaction
could
be
successfully
applied
to
depolymerizations.
Dalton Transactions,
Journal Year:
2022,
Volume and Issue:
51(8), P. 3027 - 3040
Published: Jan. 1, 2022
Development
of
efficient
Al-complexes
and
their
crucial
roles
in
catalytic
selective
hydroboration
several
unsaturated
compounds
such
as
carbonyls,
alkenes,
alkynes,
imines,
nitriles
others
were
well
documented
this
review.
