A base-promoted desalicyloylative dimerization of 3-(1-alkynyl)chromones: an unusual approach to 2-alkynyl xanthones.
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.
Xie
Fuchun
F
Shanghai Institute of Materia Medica, Chinese Academy of Science, 555 Zu Chong Zhi Road, Shanghai, 201203, China.
Pan
Xuan
X
Lin
Shijun
S
Hu
Youhong
Y
D002867:Chromones / Q000737:chemistry*; D018360:Crystallography, X-Ray; D003500:Cyclization; D019281:Dimerization; D044004:Xanthones / Q000737:chemistry*
D002867:Chromones; D044004:Xanthones