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http://acervodigital.unesp.br/handle/11449/135841- Title:
- Chemoselective condensation of β-naphthol, dimethyl malonate, and aromatic aldehydes promoted by niobium pentachloride
- Universidade Estadual Paulista (UNESP)
- 0039-7911
- 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%).
- 2015
- Synthetic Communications, v. 45, n. 9, p. 1114-1126, 2015.
- 1114-1126
- 4-Aryl-3,4-dihydrobenzo[f]coumarins
- Chemoselective
- Lewis acid
- Multicomponent reactions
- Niobium pentachloride
- http://dx.doi.org/10.1080/00397911.2014.999341
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/135841
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