One-pot synthesis of xanthones and thioxanthones by the tandem coupling-cyclization of arynes and salicylates.
[reaction: see text] The reaction of silylaryl triflates, CsF, and salicylates affords a general and efficient way to prepare biologically interesting xanthones and thioxanthones. This chemistry presumably proceeds by a tandem intermolecular nucleophilic coupling and subsequent intramolecular electrophilic cyclization.
Zhao
Jian
J
Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
Larock
Richard C
RC
D003500:Cyclization; D015394:Molecular Structure; D012459:Salicylates / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D044004:Xanthones / Q000138:chemical synthesis* / Q000737:chemistry
D012459:Salicylates; D013438:Sulfhydryl Compounds; D044004:Xanthones