Catalytic Asymmetric Synthesis of Spirooxindoles by a Mannich‐Type Reaction of Isothiocyanato Oxindoles

Abstract

Einfacher Zugang: Ein Strontium/Schiff-Base-Komplex als Katalysator der Titelreaktion ermöglichte einen einfachen Zugang zu enantiomerenangereicherten Spiro[imidazolidin-4,3′-oxindolen] sowie – über eine zweistufige Umwandlung ausgehend vom Mannich-Addukt – zu einem Spiro[imidazolin-4,3′-oxindol]. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.