title: A base-promoted desalicyloylative dimerization of 3-(1-alkynyl)chromones: an unusual approach to 2-alkynyl xanthones.
abstract: A novel base-promoted cascade desalicyloylative dimerization of 3-(1-alkynyl)chromones to produce 2-alkynyl xanthones has been developed. This tandem process involves multiple reactions, such as Michael additions/cyclizations/desalicyloylation without a transition metal catalyst and inert atmosphere.
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Science, 555 Zu Chong Zhi Road, Shanghai, 201203, China.
authors.forename: Fuchun
authors.initials: F
authors.lastname: Xie
authors.forename: Xuan
authors.initials: X
authors.lastname: Pan
authors.forename: Shijun
authors.initials: S
authors.lastname: Lin
authors.forename: Youhong
authors.initials: Y
authors.lastname: Hu
mesh_terms: D002867:Chromones / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003500:Cyclization; D019281:Dimerization; D044004:Xanthones / Q000737:chemistry*
chemical_list: D002867:Chromones; D044004:Xanthones