ChemInform Abstract: Asymmetric Phase-Transfer Catalysis by Quaternary Ammonium Ions Derived from Cinchona-Alkaloid Analogues Containing 1,1′-Binaphthalene Moieties.

Asymmetric Phase-Transfer Catalysis by Q

Asymmetric Phase-Transfer Catalysis by Quaternary Ammonium Ions Derived from Cinchona-Alkaloid Analogs Containing 1,1′-Binaphthalene Moieties

✍ Laurent Ducry; François Diederich 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 German ⚖ 309 KB

The synthesis and catalytic properties of a new type of enantioselective phase-transfer catalysts, incorporating both the quinuclidinemethanol fragment of Cinchona alkaloids and a 1,1'-binaphthalene moiety, are described. Catalyst ()-(aS,3R,4S,8R,9S)-4 with the quinuclidine fragment attached to C(7'