Journal of the Chinese Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 7, 2024
Abstract
Phosphine‐mediated
one‐pot
reactions
have
been
developed
that
involve
two
mechanistically
distinct
assembled
in
one
reaction
vessel
via
the
sequential
addition
process.
The
first
step
involves
MBH‐type
annulation
of
α
,
β
‐ynones
to
afford
cyclic
products
each
case,
which
then
engages
subsequent
‐acylation
or
intramolecular
Wittig
reactions.
conditions
are
mild
and
efficient,
providing
acylated
alkylidene
indandiones
70%–99%
yields
furo[2,3‐
f
]dibenzotropones
65%–91%
yields,
respectively.
Chemistry - An Asian Journal,
Journal Year:
2024,
Volume and Issue:
19(20)
Published: July 31, 2024
Synthesis
of
functionalized
1,3-indandiones
containing-cyclopentenones
and
-benzotropones
has
been
achieved
by
the
reaction
1,5-diphenylpenta-1,4-diyn-3-ones
with
1,3-indandiones,
bindone
respectively.
The
developed
method
involves
Michael-anti-Michael
addition
cascade
reactions
under
transition-metal-free
conditions.
This
is
first
report
to
synthesise
diverse
benzotropone
fused
transition
metal-free
conditions
from
bindone.
Journal of the Chinese Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 7, 2024
Abstract
Phosphine‐mediated
one‐pot
reactions
have
been
developed
that
involve
two
mechanistically
distinct
assembled
in
one
reaction
vessel
via
the
sequential
addition
process.
The
first
step
involves
MBH‐type
annulation
of
α
,
β
‐ynones
to
afford
cyclic
products
each
case,
which
then
engages
subsequent
‐acylation
or
intramolecular
Wittig
reactions.
conditions
are
mild
and
efficient,
providing
acylated
alkylidene
indandiones
70%–99%
yields
furo[2,3‐
f
]dibenzotropones
65%–91%
yields,
respectively.