Synthesis of spiroindolone scaffolds by Pictet-Spengler spirocyclisation using β-cyclodextrin-SO3H as a recyclable catalyst
作者:Tukaram D. Urmode、Monali A. Dawange、Vaishali S. Shinde、Radhika S. Kusurkar
DOI:10.1016/j.tet.2017.05.089
日期:2017.7
A recyclablecatalyst, β-cyclodextrin-SO3H in aqueous medium was used effectively for the synthesis of spiroindolones (tetrahydrospiro-β-carbolines as well as tetrahydrospiro-γ-carbolines) in a Pictet-Spengler spirocyclisation. The products were obtained in good yield in an environmental friendly procedure.