Catalytic asymmetric synthesis of spirooxindoles by a mannich-type reaction of isothiocyanato oxindoles

Angew Chem Int Ed Engl. 2012 Jul 9;51(28):7007-10. doi: 10.1002/anie.201203005. Epub 2012 Jun 4.

Abstract

Easy access: a strontium/Schiff base complex as catalyst for the title reaction provided straightforward access to enantiomerically enriched spiro[imidazolidine-4,3'-oxindole] compounds, as well as a spiro[imidazoline-4,3'-oxindole] through a two-step conversion from the Mannich adduct.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Indoles / chemical synthesis*
  • Isothiocyanates / chemistry*
  • Mannich Bases / chemistry*
  • Molecular Structure
  • Oxindoles
  • Schiff Bases / chemistry*
  • Spiro Compounds / chemical synthesis*
  • Stereoisomerism

Substances

  • Indoles
  • Isothiocyanates
  • Mannich Bases
  • Oxindoles
  • Schiff Bases
  • Spiro Compounds
  • 2-oxindole