New Synthesis of 2,3-Diarylxanthones

• Author(s): Santos, Clementina M.M. ; Silva, Artur ; Cavaleiro, José
• Date: 2005
• Persistent ID: http://hdl.handle.net/10198/3929
• Origin: Biblioteca Digital do IPB
• Subject(s): Diarylxanthones; 2-styrylchromones; Heck reaction; 3-bromo-2-methylchromones; Electrocyclisation
• Document Type: Article
• Language: English

Description

http://apps.isiknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=1&SID=V1M67gPH3IpI7j5a98j&page=1&doc=2&colname=WOS A new synthesis of novel 2,3-diarylxantones is described. This was accomplished by Aldol condensation of 3-bromo-2-methylchromone with benzaldehydes leading to the formation of 3-bromo-2-styrylchromones, followed by Heck reaction with styrenes.