Facile and Efficient Synthesis of 14‐Alkyl‐ or Aryl‐14‐H‐Dibenzo[a,j]xanthenes using Sulfonyl‐Functionalized Ionic Liquids
作者:Pratibha Kumari、Vinith Yathindranath、S. M. S. Chauhan
DOI:10.1080/00397910701798234
日期:2008.1.1
Abstract An efficient, simple, and rapid synthesis of 14‐alkyl‐or aryl‐14‐H‐dibenzo[a,j]xanthenes is reported by one‐pot condensation of 2‐naphthol with alkyl or aryl aldehydes in the presence of sulfonyl‐functionalized acidic ionic liquids at 125°C.
Wu, Liqiang; Ma, Weiwei; Yang, Limin, Asian Journal of Chemistry, 2010, vol. 22, # 8, p. 6173 - 6177
作者:Wu, Liqiang、Ma, Weiwei、Yang, Limin、Yan, Fulin
DOI:——
日期:——
Synthesis of 14-Substituted-14<i>H</i>-Dibenzo[<i>a,j</i>] Xanthenes and 1,8-Dioxo-Octahydroxanthenes Using Silica Chloride (SiO<sub>2</sub>-Cl) Under Solvent-Free Conditions
作者:Liqiang Wu、Chunguang Yang、Limin Yang、Lijuan Yang
DOI:10.1080/10426500903029456
日期:2010.3.24
A simple and efficientsynthesis of 14-substituted-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydroxanthenes has been accomplished by the one-pot condensation of β-naphthol or dimedone and aldehydes undersolvent-freeconditions in the presence of SiO2-Cl as a heterogeneous catalyst.