Podophyllotoxin: history, recent advances and future prospects

Z Shah, UF Gohar, I Jamshed, A Mushtaq, H Mukhtar… - Biomolecules, 2021 - mdpi.com
Podophyllotoxin, along with its various derivatives and congeners are widely recognized as
broad-spectrum pharmacologically active compounds. Etoposide, for instance, is the …

Synthesis of Functionalized α‐Vinyl Aldehydes from Enaminones

J Chen, P Guo, J Zhang, J Rong, W Sun… - Angewandte …, 2019 - Wiley Online Library
An efficient RhII‐catalyzed synthesis of functionalized α‐vinyl aldehydes with high E/Z
stereoselectivity was developed. The reaction mediates the cyclopropanation of …

Direct allylic acylation via cross-coupling involving cooperative N‑heterocyclic carbene, hydrogen atom transfer, and photoredox catalysis

X Wang, R Yang, B Zhu, Y Liu, H Song, J Dong… - Nature …, 2023 - nature.com
Herein, we report a mild, operationally simple, multicatalytic method for the synthesis of β, γ-
unsaturated ketones via allylic acylation of alkenes. Specifically, the method combines N …

Mizoroki–Heck cyclizations of amide derivatives for the introduction of quaternary centers

JM Medina, J Moreno, S Racine, S Du… - Angewandte …, 2017 - Wiley Online Library
We report non‐decarbonylative Mizoroki–Heck reactions of amide derivatives. The
transformation relies on the use of nickel catalysis and proceeds using sterically hindered tri …

Asymmetric total synthesis of (+)-phainanoid A and biological evaluation of the natural product and its synthetic analogues

J Xie, Z Zheng, X Liu, N Zhang, S Choi… - Journal of the …, 2023 - ACS Publications
Here, we report our detailed efforts toward the synthesis of phainanoids, a novel class of
dammarane-type triterpenoids with potent immunosuppressive activities and unique …

Transition-metal-free chemo-and regioselective vinylation of azaallyls

M Li, O Gutierrez, S Berritt, A Pascual-Escudero… - Nature …, 2017 - nature.com
Abstract Direct C (sp 3)–C (sp 2) bond formation under transition-metal-free conditions offers
an atom-economical, inexpensive and environmentally benign alternative to traditional …

Photocatalytic Cross-Coupling of Tetrafluoropyridine Sulfides with Vinyl Halides for the Synthesis of β, γ-Unsaturated Carbonyl Compounds

MK Zaman, R Li, W Deng - The Journal of Organic Chemistry, 2023 - ACS Publications
β, γ-Unsaturated carbonyl compounds serve as versatile building blocks in organic
synthesis and medicinal chemistry. Herein we reported the synthesis of β, γ-unsaturated …

From selective transfer hydrogenation to selective hydrogen auto-transfer process: An efficient method for the synthesis of alkenyl ketones via iridium-catalyzed α …

X Xu, C Yang, S Li, C Meng, J Yu, J Yang, F Li - Journal of Catalysis, 2021 - Elsevier
A strategy for the synthesis of alkenyl ketones via the α-alkylation of ketones with alkenyl
ketones has proposed and accomplished. In the presence of a metal–ligand bifunctional …

Ni-catalyzed alkenylation of ketone enolates under mild conditions: catalyst identification and optimization

M Grigalunas, T Ankner, PO Norrby… - Journal of the …, 2015 - ACS Publications
A procedure for Ni-catalyzed cross-coupling of ketone enolates with alkenyl halides has
been developed. Intermolecular coupling of aromatic and aliphatic ketone lithium enolates …

Chemodivergent Photocatalytic Synthesis of Dihydrofurans and β, γ‐Unsaturated Ketones

A Quintavalla, R Veronesi, D Carboni… - Advanced Synthesis …, 2021 - Wiley Online Library
A synthetic procedure, catalysed by Ir (ppy) 3 under visible‐light irradiation, for the
chemodivergent synthesis of 2, 3‐dihydrofurans (3) or β, γ‐unsaturated ketones (7) starting …