Publication
A novel and efficient route for the syntheses of hydroxylated 2,3-diarylxanthones
| dc.contributor.author | Santos, Clementina M.M. | |
| dc.contributor.author | Silva, Artur | |
| dc.contributor.author | Cavaleiro, José | |
| dc.date.accessioned | 2011-02-02T16:14:15Z | |
| dc.date.available | 2011-02-02T16:14:15Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | A novel, efficient and general route for the synthesis of hy-droxylated 2,3-diarylxanthones is described. 3-Bromo-2-styrylchromones, the key intermediate of this synthesis, is obtained by a Baker-Venkataraman rearrangement of appropriate 2’-cinnamoyloxyacetophenones, followed by a one-pot reaction with phenyltrimethylammonium tribromide. The Heck reaction of these bromochromones with substituted styrenes gives methoxylated 2,3-diarylxanthones. The cleavage of the methyl groups with BBr3 gives the desired hydroxylated 2,3-diarylxanthones. | por |
| dc.identifier.citation | Santos, Clementina; Silva, Artur; Cavaleiro, José (2007). A novel and efficient route for the syntheses of hydroxylated 2,3-diarylxanthones. Synlett. 20, p. 3113-3116 | por |
| dc.identifier.doi | 10.1055/s-2007-990900 | |
| dc.identifier.uri | http://hdl.handle.net/10198/3240 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Thieme Verlag | por |
| dc.subject | Hydroxylated diarylxanthones | por |
| dc.subject | 3-bromo-2-styrylchromones | por |
| dc.subject | Heck reaction | por |
| dc.subject | Phenyltrimethylammonium tribromide | por |
| dc.subject | Demethylation | por |
| dc.title | A novel and efficient route for the syntheses of hydroxylated 2,3-diarylxanthones | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/POCI/POCI%2FQUI%2F59284%2F2004/PT | |
| oaire.citation.endPage | 3116 | por |
| oaire.citation.startPage | 3113 | por |
| oaire.citation.title | Synlett | por |
| oaire.fundingStream | POCI | |
| person.familyName | Santos | |
| person.givenName | Clementina M.M. | |
| person.identifier.ciencia-id | 9018-DB9C-C590 | |
| person.identifier.orcid | 0000-0003-4380-7990 | |
| person.identifier.scopus-author-id | 7201458663 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |
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