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- W1576644757 abstract "The reaction of the α,β-trimethylsilyl epoxides Ia and Ib with the N-silylated secundary carboxamides IIa and IIb leads to a ring opening in α-position. On the other hand, no reaction takes place with IIa and IIb if another substituent exists beside the silyl group in the α-position as in Id and Ie. In the case of the β,γ-trimethylsilyl epoxide Va and of the γ,δ-trimethylsilyl epoxides XIa–XIc, IIa and IIb open the epoxide ring by a nucleophilic attack at the terminal C-atom. IIa and IIb are added to the (trimethylsilyl)propanales VIIIa and VIIIb. Bei der Umsetzung der α-β-(Trimethylsilyl)-epoxide Ia und Ib mit den N-silylierten sekundären Carbonsäureamiden IIa und IIb findet Ringspaltung in α-Stellung statt. Ist neben der Silylgruppe noch ein anderer Substituent in α-Stellung vorhanden, wie bei Id und Ie, tritt mit IIa und IIb keine Reaktion ein. Im Fall des β,γ-(Trimethylsilyl)-epoxids Va und der γ,δ-(Trimethylsilyl)-epoxide XIa–XIc greifen die Amide IIa und IIb nucleophil am terminalen C-Atom unter Ringöffnung an. An die (Trimethylsilyl)-propanale VIIIa und VIIIb werden IIa und IIb addiert." @default.
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- W1576644757 date "1984-03-01" @default.
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- W1576644757 title "Siliciumorganische verbindungen" @default.
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- W1576644757 doi "https://doi.org/10.1016/0022-328x(84)85135-9" @default.
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