Synthesis of Medium-Sized Rings by Z-Retentive Asymmetric Allylic Substitution-Enabled Intermolecular Cascade Cyclization under Iridium/Cinchona Catalysis
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(20), P. 15743 - 15750
Published: Oct. 9, 2024
Medium-sized
rings
are
important
structural
units
in
organic
molecules
of
significant
interest.
However,
their
efficient
synthesis,
especially
a
highly
enantioselective
manner,
has
been
formidable
challenge.
Herein,
we
report
an
synthesis
medium-sized
aza-rings
by
Z-retentive
asymmetric
allylic
substitution-enabled
intermolecular
cascade
cyclization
via
iridium/cinchona
dual
catalysis.
The
reaction
was
performed
under
mild
conditions
and
with
good
functional
group
tolerance.
Various
nine-
to
eleven-membered
can
be
afforded
moderate
high
yields
(up
98%)
enantioselectivities
93%
ee).
utilization
both
Z-linear
dipole
precursor
binary
catalyst
is
critical
for
the
desired
reactivity.
Language: Английский
Palladium-Catalyzed (4 + 1) Annulation of 4-Vinylbenzodioxinones with Sulfur Ylides: Diastereoselective Synthesis of Dihydrobenzofuran Derivatives
Yi Tang,
No information about this author
Xiaojing Sun,
No information about this author
Yu Tan
No information about this author
et al.
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
89(12), P. 8951 - 8959
Published: May 30, 2024
Palladium-catalyzed
(4
+
1)
annulation
of
4-vinylbenzodioxinones
with
sulfur
ylides
has
been
developed
to
afford
various
dihydrobenzofuran
derivatives
in
moderate
high
yields
excellent
diastereoselectivities.
The
scale-up
reaction
and
further
derivations
the
product
worked
well,
demonstrating
application
potential
current
organic
synthesis.
Language: Английский
Palladium-Catalyzed [3 + 2] Cycloaddition of 4-Vinyl-4-Butyrolactones with Alkenes: Synthesis of Spirocyclopentane Compounds
Honghao Sun,
No information about this author
A.‐T. SONG,
No information about this author
Shuang Gu
No information about this author
et al.
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 12, 2024
A
palladium-catalyzed
[3
+
2]
cycloaddition
of
4-vinyl-4-butyrolactones
(VBLs)
with
alkenes
has
been
developed
to
afford
various
spirocyclopentane
products
in
high
yields
excellent
diastereoselectivities.
The
scale-up
reaction
and
further
derivations
the
product
worked
well,
demonstrating
potential
application
current
organic
synthesis.
Language: Английский
Palladium/Phosphine Complex Catalyzed [4+4] Annulations of Morita-Baylis-Hillman Carbonates and 1-Azadienes
Bo Zhu,
No information about this author
Yang Yang,
No information about this author
Qiang Liu
No information about this author
et al.
Chinese Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
44(12), P. 3761 - 3761
Published: Jan. 1, 2024
Language: Английский
Palladium-Catalyzed [3+2] Cycloaddition of 4-Vinyl-4-Butyro-lactones with Sulfamate-Derived Cyclic Imines: Construction of Sulfamate-Fused Pyrrolidines
Honghao Sun,
No information about this author
Siyuan Ding,
No information about this author
Bo Wang
No information about this author
et al.
Organic & Biomolecular Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
The
palladium-catalyzed
[3
+
2]
decarboxylative
cycloaddition
of
4-vinyl-4-butyrolactones
with
sulfamate-derived
cyclic
imines
has
been
developed,
providing
the
sulfamate-fused
pyrrolidine
derivatives
in
high
yields
good
diastereoselectivities.
Language: Английский