Photoinduced Pd-Catalyzed Formal Asymmetric Allylic Substitution of Piperidine Scaffolds
ACS Catalysis,
Год журнала:
2025,
Номер
unknown, С. 4384 - 4393
Опубликована: Фев. 26, 2025
Язык: Английский
Visible-light-mediated synthesis of polysubstituted pyrroles via CAr–I reduction triggered 1,5-hydrogen atom transfer process
Organic Chemistry Frontiers,
Год журнала:
2024,
Номер
11(16), С. 4522 - 4528
Опубликована: Янв. 1, 2024
A
novel
strategy
for
the
construction
of
polysubstituted
pyrroles
has
been
developed
through
visible-light-induced
single-electron
reduction
C
Ar
–I
bonds
and
following
1,5-hydrogen
atom
transfer
(HAT)
process.
Язык: Английский
Transition‐Metal‐Free Radical Relay Cascade Annulation of Amides: Access to Antitumor Active Benzo[b]azepine and Oxindole Derivatives
Xia-xin Sheng,
Chao-ying Qiu,
Lina Wang
и другие.
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(63)
Опубликована: Авг. 26, 2024
Abstract
Efficient
transition‐metal‐free
synthesis
of
benzo[b]azepines
and
oxindoles
is
achieved
via
a
radical
relay
cascade
strategy
employing
halogen
atom
transfer
(XAT)
for
aryl
generation
followed
by
intramolecular
hydrogen
(HAT).
Optimization
yielded
moderate
to
substantial
yields
under
visible
light
irradiation.
Preliminary
biological
assessments
revealed
promising
anti‐tumor
activity
select
compounds.
This
study
underscores
the
potential
XAT‐mediated
cascades
in
medicinal
chemistry
anticancer
drug
discovery.
Язык: Английский
Divergent Synthesis of (E)- and (Z)-Alkenones via Photoredox C(sp3)–H Alkenylation–Dehydrogenation of o-Iodoarylalkanols with Alkynes
Liang Zeng,
Yin Zhang,
Ming Hu
и другие.
Organic Letters,
Год журнала:
2024,
Номер
26(47), С. 10096 - 10101
Опубликована: Ноя. 15, 2024
A
photoredox
C(sp3)–H
alkenylation–dehydrogenation
of
o-iodoarylalkanols
with
terminal
alkynes
for
the
synthesis
(E)-
and
(Z)-quaternary
carbon
center-containing
pent-4-en-1-ones
is
described.
The
stereoselectivity
depends
on
utilization
photocatalysts.
While
using
an
organic
photocatalyst
like
4-DPAIPN
manipulates
arylalkynes
to
assemble
(E)-pent-4-en-1-ones,
in
case
Ir
potocatalyst
such
as
Ir(ppy)2(dtbbpy)PF6
reaction
delivers
(Z)-pent-4-en-1-ones.
For
alkylalkynes,
furnishes
(E)-pent-4-en-1-ones
exclusively
presence
or
Ir(ppy)2(dtbbpy)PF6.
Язык: Английский
Visible-Light-Driven Synthesis of N-Alkyl α-Amino Acid Derivatives from Unactivated Alkyl Bromides and In Situ Generated Imines
Organic Letters,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 23, 2024
One-pot,
multicomponent
reactions
are
known
for
their
green
and
efficient
nature.
We
report
a
novel
three-component
reaction
of
alkyl
amines,
glyoxylates,
unactivated
bromides
under
visible-light-induced
palladium
catalysis,
yielding
Язык: Английский