SciELO - Scientific Electronic Library Online

 
vol.16 número3BOxidative dimerization of Ru(III)-EDTA complex on the surface of functionalized silica gelOthers flavonoids from Ouratea hexasperma (Ochnaceae) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Journal of the Brazilian Chemical Society

versão impressa ISSN 0103-5053versão On-line ISSN 1678-4790

Resumo

SILVA, Rosangela da et al. Racemic synthesis of 1,2-secomicrominutinin. J. Braz. Chem. Soc. [online]. 2005, vol.16, n.3b, pp.626-633. ISSN 1678-4790.  http://dx.doi.org/10.1590/S0103-50532005000400021.

The racemic 1,2-secomicrominutinin (25) was synthesized employing the intramolecular cycloaddition reaction of an (alkenyloxy)ketene, prepared from the corresponding tosylate. The (alkenyloxy)ketene undergoes intramolecular [2+2] cycloaddition to give tricyclic benzocyclobutafuranone (16), which by Baeyer-Villiger oxidation gives a benzofuranofuranone (17). Reaction of the latter compound with methyl propiolate, catalyzed by triphenylphosphine, produced the cinnamic ester derivative (25).

Palavras-chave : 1,2-secomicrominutinin; benzofuranofuran; intramolecular cycloaddition; synthesis.

        · resumo em Português     · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons