Indole synthesis using silver catalysis

AK Clarke, HE Ho, JA Rossi‐Ashton… - Chemistry–An Asian …, 2019 - Wiley Online Library
Indoles are amongst the most important classes of heteroaromatics in organic chemistry,
commonly found in biologically active natural products and therapeutically useful …

Visible-light-induced intramolecular charge transfer in the radical spirocyclisation of indole-tethered ynones

HE Ho, A Pagano, JA Rossi-Ashton, JR Donald… - Chemical …, 2020 - pubs.rsc.org
Indole-tethered ynones form an intramolecular electron donor–acceptor complex that can
undergo visible-light-induced charge transfer to promote thiyl radical generation from thiols …

Synthesis of CF3-Containing Spirocyclic Indolines via a Red-Light-Mediated Trifluoromethylation/Dearomatization Cascade

L Mei, J Moutet, SM Stull… - The Journal of Organic …, 2021 - ACS Publications
A red-light-mediated nPr-DMQA+-catalyzed cascade intramolecular trifluoromethylation and
dearomatization of indole derivatives with Umemoto's reagent has been developed. This …

Controllable syntheses of spiroindolenines and benzazepinoindoles via hexafluoroisopropanol-mediated Redox-Neutral cascade process

G Bai, F Dong, L Xu, Y Liu, L Wang, SS Li - Organic letters, 2019 - ACS Publications
The pharmaceutically intriguing spiroindolenines incorporating tetrahydroquinoline were
constructed via a hexafluoroisopropanol-promoted redox-neutral cascade cyclization from …

Gold-catalyzed intramolecular dearomatization reactions of indoles for the synthesis of spiroindolenines and spiroindolines

WT Wu, L Ding, L Zhang, SL You - Organic letters, 2019 - ACS Publications
A gold-catalyzed dearomatization reaction of indole derivatives was realized in the presence
of JohnPhosAuCl/AgOMs to afford a series of spiroindolenines in excellent yields (≤ 99%) …

Rapid Assembly of Spironaphthalenones by Dearomative Spiroannulation of Naphthols and Dielectrophiles

D Zhao, M Liu, L Bai, J Liu, X Luan - The Journal of Organic …, 2023 - ACS Publications
A novel [4+ 1] and [5+ 1] dearomative spiroannulation has been developed by the use of
commercial naphthols and phenols with dielectrophiles. Various spirocycles, including spiro …

Palladium-Catalyzed Dearomatization of Indoles with Alkynes: Construction of Spirocyclohexaneindolenines

W Hu, J Huang, G Gao, W Guo, F Yin… - The Journal of …, 2023 - ACS Publications
A palladium-catalyzed dearomatization of indoles with alkynes has been developed,
providing an efficient route to access a variety of synthetically useful …

Application of Metal‐Free Dearomatization Reaction as a Sustainable Strategy to Direct Access Complex Cyclic Compounds

X Xu, L Zhong, H Feng… - The Chemical …, 2023 - Wiley Online Library
The highly efficient construction of complicated heterocyclic frameworks in an atom‐and step‐
economic manner is still one of the cores of synthetic chemistry. Dearomatization reactions …

Synthesis of Spirocyclic 1‐Pyrrolines from Nitrones and Arynes through a Dearomative [3, 3′]‐Sigmatropic Rearrangement

AS Alshreimi, G Zhang, TW Reidl… - Angewandte Chemie …, 2020 - Wiley Online Library
Abstract A dearomative [3, 3′]‐sigmatropic rearrangement that converts N‐
alkenylbenzisoxazolines into spirocyclic pyrroline cyclohexadienones has been developed …

Synthesis of Spiro [indole-3, 3′-pyrrolidine]-2′-(thi) ones

M Yasui, H Ohbu, M Ishikawa, T Yoshida… - The Journal of …, 2022 - ACS Publications
Spiro [indole-3, 3′-pyrrolidine]-2′-ones were synthesized via one-pot chloroformylation-
dearomatizing spirocyclization of tryptamine derivatives. Moreover, the “thio” equivalent …