European Journal of Organic Chemistry,
Год журнала:
2022,
Номер
2022(35)
Опубликована: Авг. 23, 2022
Abstract
A
regioselective
hydroboration/hydrolysis
of
epoxides
with
pinacolborane
catalyzed
by
NaOH/BEt
3
was
achieved.
Glycidyl
oxide,
styrene
oxide
and
adamantane
epoxide
underwent
facile
hydroboration/deprotection
to
provide
secondary
alcohols
exclusive
selectivity
in
good
excellent
yields.
Moreover,
the
stereochemistry
could
also
be
well
retained,
corresponding
were
obtained
high
optical
activity
under
alkaline
catalysis.
Significantly,
this
reaction,
diverse
functional
groups
can
compatible,
including
hydrogenation‐sensitive
groups,
such
as
carbon‐carbon
double
bonds
halogens.
Organic & Biomolecular Chemistry,
Год журнала:
2022,
Номер
20(34), С. 6784 - 6798
Опубликована: Янв. 1, 2022
An
efficient
heteroannulation
employing
racemic
Morita–Baylis–Hillman
acetate
and
α-enolic
dithioesters
enabling
the
formation
of
dihydro-2
H
-thiopyrans
is
reported.
New Journal of Chemistry,
Год журнала:
2022,
Номер
47(5), С. 2495 - 2506
Опубликована: Дек. 30, 2022
The
presence
of
Mg(
ii
)
cation
does
not
substantially
accelerate
this
low
polar
zw-type
[3+2]
cycloaddition
reaction,
but
changes
the
facial
diastereoselectivity.
These
reactions
are
completely
ortho
regioselective.
European Journal of Organic Chemistry,
Год журнала:
2022,
Номер
2022(35)
Опубликована: Авг. 23, 2022
Abstract
A
regioselective
hydroboration/hydrolysis
of
epoxides
with
pinacolborane
catalyzed
by
NaOH/BEt
3
was
achieved.
Glycidyl
oxide,
styrene
oxide
and
adamantane
epoxide
underwent
facile
hydroboration/deprotection
to
provide
secondary
alcohols
exclusive
selectivity
in
good
excellent
yields.
Moreover,
the
stereochemistry
could
also
be
well
retained,
corresponding
were
obtained
high
optical
activity
under
alkaline
catalysis.
Significantly,
this
reaction,
diverse
functional
groups
can
compatible,
including
hydrogenation‐sensitive
groups,
such
as
carbon‐carbon
double
bonds
halogens.