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Direct-Type Catalytic Three-Component Mannich Reaction in Aqueous Media.

✍ Scribed by Thierry Ollevier; Etienne Nadeau; Andree-Anne Guay-Begin

Publisher
John Wiley and Sons
Year
2007
Weight
22 KB
Volume
38
Category
Article
ISSN
0931-7597

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✍ Tomoaki Hamada; Kei Manabe; ShΕ« Kobayashi πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 226 KB πŸ‘ 1 views

## Abstract Catalytic asymmetric Mannich‐type reactions of an α‐hydrazono ester with silicon enolates in aqueous media have been developed by using ZnF~2~ and chiral diamines as catalysts. In these reactions, both Zn^2+^ and a fluoride anion were necessary to achieve high yields and enantioselectiv