Chemoselective condensation of β-naphthol, dimethyl malonate, and aromatic aldehydes promoted by niobium pentachloride
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
02/03/2016
02/03/2016
2015
|
| Resumo |
A multicomponent reaction of β-naphthol, dimethyl malonate, and aromatic aldehydes in the presence of NbCl5 as promoter is described. Under similar conditions, aromatic aldehydes with different substituents exhibited different behaviors than β-naphthol and dimethyl malonate. In these MCRs, 4-aryl-3,4-dihydrobenzo[f]coumarins are obtained as the major products (41–93%) and 14-aryl-14H-dibenzo[a,j]xanthenes as the minor products (1–38%). |
| Formato |
1114-1126 |
| Identificador |
http://dx.doi.org/10.1080/00397911.2014.999341 Synthetic Communications, v. 45, n. 9, p. 1114-1126, 2015. 0039-7911 http://hdl.handle.net/11449/135841 10.1080/00397911.2014.999341 4659698040759224 |
| Idioma(s) |
eng |
| Relação |
Synthetic Communications |
| Direitos |
closedAccess |
| Palavras-Chave | #4-Aryl-3,4-dihydrobenzo[f]coumarins #Chemoselective #Lewis acid #Multicomponent reactions #Niobium pentachloride |
| Tipo |
info:eu-repo/semantics/article |
