Enantioselective Phase‐Transfer Catalysis: Synthesis of Pyrazolines

Abstract

Im Pärchen: Unter den Bedingungen der Phasentransferkatalyse führte die Entstehung eines chiralen Ionenpaars zwischen dem Chininium-Kation 1 und dem Hydrazin-Anion 2 zu einer enantioselektiven Domino-Aza-Michael-Cyclokondensation unter Bildung von Pyrazolinen. Ein einfaches Eintopfverfahren ermöglicht den Austausch der funktionellen Gruppe (R1) am Stickstoffatom. 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.