Microwave-Assisted, Yb(OTf)3 /TfOH Cocatalyzed Synthesis of Xanthones and Thioxanthones by Intramolecular Friedel-Crafts Reaction under Solvent-Free Conditions
作者:Weike Su、Jie Li、Can Jin
DOI:10.3987/com-11-12136
日期:——
An efficient method for the synthesis of biologically interesting xanthones and thioxanthones was achieved using Yb(OTf)(3)/TfOH as co-catalysts by a microwave radiation-mediated reaction. Both electron-rich and electron-poor substrates could be cyclized in good yields.
OKABAYASHI J.; IWATA N., CHEM. AND PHARM. BULL., 1980, 28, NO 9, 2831-2835
作者:OKABAYASHI J.、 IWATA N.
DOI:——
日期:——
Okabayashi, Ichizo; Iwata, Noriko, Chemical and pharmaceutical bulletin, 1980, vol. 28, # 9, p. 2831 - 2835