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http://acervodigital.unesp.br/handle/11449/129442- Title:
- Chemoselective condensationof beta-naphthol, dimethyl malonate, andaromatic aldehydes promoted by niobium pentachloride
- Universidade Estadual Paulista (UNESP)
- 0039-7911
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- FAPESP: Procs. 2012/23821-7
- FAPESP: 2013/08697-0
- A multicomponent reaction of -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 -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%).
- 1-Jan-2015
- Synthetic Communications. Philadelphia: Taylor &francis Inc, v. 45, n. 9, p. 1114-1126, 2015.
- 1114-1126
- Taylor &francis Inc
- 4-Aryl-3
- 4 dihydrobenzo[f]coumarins
- Chemoselective
- Lewis acid
- Multicomponent reactions
- Niobium pentachloride
- http://www.tandfonline.com/doi/abs/10.1080/00397911.2014.999341
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/129442
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