α‐Diphenylmethylsilylation of ester enolates: 2‐methyl‐2‐undecene from ethyl decanoate
reactant: 10.3 mL (11.6 g; 50 mmol) of diphenylmethylchlorosilane in 40 mL of tetrahydrofuran
intermediate: ethyl 2‐(diphenylmethylsilyl)decanoate
product: 2‐Methyl‐2‐undecene
α‐Methyldiphenylsilyl‐carbonsäureester (I) werden mit überschüssigen Grignardverbindungen (II) in Enolate (III) übergeführt und dann zu den Ketosilanen (IV) hydrolysiert.
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