4-Vinylbenzodioxinones as a new type of precursor for palladium-catalyzed (4+3) cycloaddition of azomethine imines
Chemical Communications,
Год журнала:
2024,
Номер
60(11), С. 1436 - 1439
Опубликована: Янв. 1, 2024
Benzo-fused
cyclic
carbonates
were
designed
and
synthesized
as
a
novel
type
of
precursor
π-allylpalladium
zwitterionic
intermediates.
Язык: Английский
Palladium-Catalyzed [5 + 4] Cycloaddition of 4-Vinyl-4-Butyrolactones with N-Tosyl Azadienes: Construction of Nine-Membered Ring
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(7), С. 5019 - 5028
Опубликована: Март 19, 2024
In
this
paper,
we
reported
the
palladium-catalyzed
formal
[5
+
4]
cycloaddition
reactions
between
4-vinyl-4-butyrolactones
(VBLs)
and
azadienes.
Under
mild
reaction
conditions,
a
wide
range
of
benzofuran-fused
9-membered
heterocyclic
compounds
had
been
provided
in
moderate
to
excellent
yields
with
exclusive
regioselectivities
diastereoselectivities.
The
practical
applicability
synthesis
was
demonstrated
through
scale-up
further
transformation.
Язык: Английский
Cu-Catalyzed Divergent Transformations of Allenylethylene Carbonates with Diboron Reagents
Organic Letters,
Год журнала:
2024,
Номер
26(4), С. 960 - 965
Опубликована: Янв. 19, 2024
Divergent
transformations
of
allenylethylene
carbonates
with
diboron
reagents
catalyzed
by
copper
are
disclosed.
By
using
CuCl/IPr·HCl
as
the
catalyst,
react
B2hex2
to
afford
2,4-dien-1-ols
product
in
presence
Cs2CO3
base,
iPrOH
additive,
and
1,4-dioxane
solvent.
And
they
B2pin2
form
boronic
half
acids
NaOtBu
water
THF
The
reactions
corresponding
products
good
stereoselectivities
yields,
further
derivatizations
study
mechanism
also
demonstrated.
Язык: Английский
Palladium-catalyzed asymmetric [4 + 3] cycloaddition of methylene-trimethylenemethane: access to seven-membered exocyclic axially chiral allenes
Chemical Science,
Год журнала:
2024,
Номер
15(25), С. 9703 - 9708
Опубликована: Янв. 1, 2024
A
palladium-catalyzed
asymmetric
[4
+
3]
cycloaddition
of
the
methylene-trimethylenemethane
donor
with
an
azadiene
has
been
developed,
affording
benzofuro[3,2-
b
]azepine-derived
exocyclic
chiral
allene
control
axial
and
point
chirality.
Язык: Английский
Palladium‐Catalyzed Enantioselective [4+2] Cycloaddition of 4‐Vinylbenzodioxinones with Barbiturate‐Derived Alkenes: Con‐struction of Chiral Spirobarbiturate−Chromanes
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(24)
Опубликована: Фев. 21, 2024
In
this
paper,
Pd-catalyzed
[4+2]
decarboxylative
cycloaddition
of
4-vinylbenzodioxinones
with
barbiturate-derived
alkenes
has
been
developed,
leading
to
various
spirobarbiturate-chromane
derivatives
in
high
yields
excellent
diastereo-
and
enantioselectivities.
The
scale-up
reaction
further
derivation
the
product
were
demonstrated.
A
plausible
mechanism
was
also
proposed.
Язык: Английский
Palladium-Catalyzed (4 + 1) Annulation of 4-Vinylbenzodioxinones with Sulfur Ylides: Diastereoselective Synthesis of Dihydrobenzofuran Derivatives
The Journal of Organic Chemistry,
Год журнала:
2024,
Номер
89(12), С. 8951 - 8959
Опубликована: Май 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.
Язык: Английский
Pd-Catalyzed Sequential Intramolecular Annulation/ Intermolecular [3+2] Cycloaddition of 5-Allenyloxazolidine-2,4-diones with Dipoles: Synthesis of Spiroheterocycles
Chemical Communications,
Год журнала:
2024,
Номер
60(76), С. 10516 - 10519
Опубликована: Янв. 1, 2024
Pd-catalyzed
sequential
intramolecular
annulation/intermolecular
[3+2]
cycloaddition
of
5-allenyloxazolidine-2,4-diones
with
dipoles
was
achieved.
Under
palladium
catalysis,
various
reacted
1,3-dipoles
such
as
nitrile
Язык: Английский
Cyclopent-4-ene-1,3-diones fused with heterocycles as promising anchor groups in non-fullerene acceptors (microreview)
Chemistry of Heterocyclic Compounds,
Год журнала:
2024,
Номер
60(3-4), С. 127 - 129
Опубликована: Апрель 1, 2024
Язык: Английский
Palladium-Catalyzed [3+2] Cycloaddition of 4-Vinyl-4-Butyro-lactones with Sulfamate-Derived Cyclic Imines: Construction of Sulfamate-Fused Pyrrolidines
Organic & Biomolecular Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 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.
Язык: Английский