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Alkylation and protonation of chiral schiff bases: Diastereoselectivity as a function of the nature of reactants

โœ Scribed by Mohamed Tabcheh; Abdelrhani El Achqar; Louis Pappalardo; Marie-Louise Roumestant; Philippe Viallefont


Book ID
104204006
Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
444 KB
Volume
47
Category
Article
ISSN
0040-4020

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Novel N-acetophenone cinchona ammonium salts have been successfully synthesized and used as chiral phase transfer catalysts for the asymmetric alkylation of tert-butyl benzophenone Schiff base derivatives in aqueous media at room temperature with the highest ee and yield up to 96 and 98%, respective