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2005
Diastereoselective syntheses
O 0031
Lewis Base-Catalyzed anti-Selective Mannich-Type Reaction Between TrimethylEnolates and Aldimines. — Potassium or ammonium carboxylate-catalyzed
24- 040 silyl
Mannich-type reactions between aldimines and trimethylsilyl enolates proceed
smoothly to afford the corresponding β-amino carbonyl compounds with high anti selectivity. The influence of different substituted aldimines and enolates and of the reaction conditions on the stereoselectivity is studied. — (TAKAHASHI, E.; FUJISAWA,
H.; MUKAIYAMA*, T.; Chem. Lett. 34 (2005) 1, 84-85; Cent. Basic Res., Kitasato
Inst., Kita, Tokyo 114, Japan; Eng.) — H. Haber
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