A facile protocol for the unprecedented one-pot H 2 SO 4 -mediated hydroxymethylation/cyclative N, O -acetalization of 4-aminocoumarins to 1,4-dihydro-2 H,5 H -chromeno[4,3- d ][1,3]oxazin-5-ones, in moderate to good yields, ...

In this work, the synthesis of new pyrroles derived from aminocoumarins was developed. First, the synthesis of pyrroles derived from 4-amino-2H-chromen-2-one was carried out by the Paal-Knorr and Clauson-Kaas reactions, ...

A fluorescent probe C-DMPE was synthesised to monitor interfacial membrane properties by conjugating coumarin-343 and 1,2-dimyristoyl-sn-glycero-3-phosphorylethanolamine (DMPE), anchoring the 7-aminocou-marin moiety close ...

Coumarin compounds have been described as anti-inflammatories, and chemotherapeutic agents as well as antioxidants. However, the origin of the antioxidant activity of non phenolic coumarins remains obscure. In the present ...

This work shows the synthesis, spectroscopic structural characterization, microbiological properties determination, photophysical, and the DNA bonds of the new difluorooraganoboron compounds, wich are BODIPYs derivatives ...

Chromenes are part of an important class of heterocyclic compounds, natural or synthetic, and have many biological and chemical applications. Among them, chromenopyridines has arisen as a promising material for pharmacological ...

In this work we developed a methodology for the synthesis of 1,3-oxazines derived from aminocoumarins by the hydroxymethylation/acetalization reaction with aldehydes catalyzed by H2SO4 in aqueous media. The scope and ...