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- W2055879924 abstract "Die α-Amino-α-desoxy-ulosen 1a – c, 5, 9a, und 13a, b werden mittels LDA, CH3I, HMPA in THF (Methode A) oder KOtBu, CH3I in DMF (Methode B) regio- und stereospezifisch zu den in α-Stellung zur Ketofunktion C-alkylierten Produkten vom Typ 2a – c, 6, 10a, b und 14a, b umgesetzt. Die Verbindungen 5 und 9a reagieren mit LDA in THF (Methode C) ausschlieslich zu den Enonen 8 und 12a.Enolates of Carbohydrates, 41). – Axial C-Alkylation in α-Position of α-Amino-α-deoxy-ketosesProducts of type 2a – c, 6, 10a, b, and 14a, b which are alkylated in α-position of the keto function are yielded by reaction of the α-amino-α-deoxy-uloses 1a – c, 5, 9a, and 13a, b with LDA, CH3I, HMPA in THF (method A) or KOtBu, CH3I in DMF (method B) in a regio- and stereospecific manner. LDA in THF (method C) exclusively generates the enones 8 and 12a from 5 and 9a." @default.
- W2055879924 created "2016-06-24" @default.
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- W2055879924 date "1985-12-22" @default.
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- W2055879924 title "Enolate von Kohlenhydraten, 4. Axiale α-C-Alkylierung von α-Amino-α-desoxy-Kohlenhydratulosen" @default.
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- W2055879924 doi "https://doi.org/10.1002/jlac.198519851204" @default.
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