Pentafluorophenol (C6F5OH) catalyzed Regioselective annulation for the synthesis of tetracyclic Dihydrochromeno indoles

Tetrahedron Letters, Journal Year: 2025, Volume and Issue: unknown, P. 155660 - 155660

Published: May 1, 2025

Language: Английский

Directed Cascade C–H Functionalization/2-Fold Annulation with Vinylcyclopropanes: Access to Tetrahydrobenzo[g]isochromen-10-ones

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Rh-catalyzed enaminone directed cascade C-H functionalization/2-fold annulation with vinylcyclopropanes has been accomplished to afford functionalized tetrahydrobenzo[g]isochromen-10-ones. The sequential C-H/C-C functionalization, C-C/C-O bond formation, redox-neutral conditions, functional group tolerance, and late-stage modification of the natural products are important practical features.

Language: Английский

Photocatalytic Three-Component Assemblies of Enaminones, α-Diazo Esters, and Nitriles for the Synthesis of N,N-Diacylated Glycine Esters

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 21, 2025

A facile method with simple starting materials, including enaminones, α-diazo esters, and nitriles, has been developed for the direct synthesis of N,N-diacyl glycine esters via visible light photocatalysis. The reaction involves a novel carbon-carbon bond cleavage in leading to products high tolerance variability substructures among all three components.

Language: Английский