title: General and expedient synthesis of 1,4-dioxygenated xanthones.
abstract: A facile entry to 1,4-dioxygenated xanthones having a variety of substitution patterns and substituents was developed that features a novel application of the Moore cyclization using substrates that were readily assembled in a highly convergent fashion by an acetylide stitching process. The practical utility of the methodology was demonstrated by an efficient synthesis of a naturally occurring xanthone and correction of the structure of dulcisxanthone C.
authors.affiliation: Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station-A5300, Austin, Texas 78712, USA.
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Nichols
authors.forename: Patricia
authors.initials: P
authors.lastname: Zhang
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Martin
mesh_terms: D015394:Molecular Structure; D013237:Stereoisomerism; D044004:Xanthones / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D044004:Xanthones