Benzofuranos
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Studies toward the synthesis of jungianol and construction of benzofurans by TTN-mediated ring contraction / Estudos visando à síntese do jungianol e a construção de anéis benzofurânicos utilizando TTN
This thesis describes the studies aiming at the synthesis of jungianol and the construction of benzofuranic rings. In both cases, the key-step is the reaction of thallium(III)-mediated ring contraction. Jungianol is a phenolic sesquiterpene isolated by Bohlmann et al., in 1977, from the species Jungia malvaefolia. The key-step of the synthesis could be the r
Publicado em: 2007
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2. AvaliaÃÃo do potencial antitumoral dos hidrobenzofuranÃides isolados das folhas da Tapirira guianensis (anacardiaceae) / Antitumor potential of hydrobenzofuranoids isolated from the leaves of tapirira guianensis (anacardiaceae)
Os hidrobenzofuranÃides obtidos da Tapirira guianensis sÃo derivados alquilados da ciclohexanona, que parecem ser possÃveis precursores dos lipÃdios fenÃlicos. O presente trabalho avaliou, inicialmente, a atividade dos nove hidribenzofuranÃides em linhagens de cÃlulas, onde a amostra SJC-8 mostrou a citotoxicidade mais elevada. Posteriormente, foram a
Publicado em: 2006
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3. Flavonoids, coumarins and benzofuranes as chemotaxonomic markers in the Asteraceae / Flavonóides, cumarinas e benzofuranos como marcadores quimiotaxonômicos em Asteraceae
This work describes the natural occurrences of flavonoids, coumarins and benzofurans in the family of plants, Asteraceae / Compositae. It has as main purpose to classify the referred secondary metabolites as possible chemotaxonomic markers of the family as well as to do predictions of occurrences of the latter. For its accomplishment, a database of occurrenc
Publicado em: 2003