Biblioteca Digital do Instituto Politécnico de Bragança   Instituto Politécnico de Bragança

Biblioteca Digital do IPB >
Escola Superior Agrária >
Produção e Tecnologia Vegetal >
PTV - Artigos em Revistas Indexados ao ISI >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3240

Título: A novel and efficient route for the syntheses of hydroxylated 2,3-diarylxanthones
Autor: Santos, Clementina M.M.
Silva, Artur
Cavaleiro, José
Palavras-chave: Hydroxylated diarylxanthones
3-bromo-2-styrylchromones
Heck reaction
Phenyltrimethylammonium tribromide
Demethylation
Issue Date: 2007
Editora: Thieme Verlag
Citação: 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
Resumo: 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.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/3240
Versão do Editor: https://www.thieme-connect.com/ejournals/toc/synlett
Appears in Collections:PTV - Artigos em Revistas Indexados ao ISI

Files in This Item:

File Description SizeFormat
Synlett,2007,3113.pdf122,54 kBAdobe PDFView/Open

Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 


  © Instituto Politécnico de Bragança - Biblioteca Digital - Feedback - Statistics
  Estamos no RCAAP Governo Português separator Ministério da Educação e Ciência   Fundação para a Ciência e a Tecnologia

Financiado por:

POS_C UE