Wenyong Han, Shi-Wu Li, Zhijun Wu
Apr 26, 2013
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Chemistry
Abstract
Cascading catalysis: 3-Isothiocyanato oxindoles act as powerful and versatile precursors for a range of structurally diverse dispirocyclic thiopyrrolidineoxindoles containing two spiro-quaternary and three contiguous stereogenic centers in quantitative yields with excellent disatereo- and enantioselectivities by only using 1 mol % amino-thiocarbamate catalyst.