3-Triethylsilyloxy-l ,4-pentadiene

Other Methyldiphenylsilylations. Methyldiphenylchlorosilane was used to form 6-silyluracils and uridines. The yields were better than those obtained with chlorotrimethylsilane (eq 9). The methyldiphenylsilylation of the lithium anion of 3-triethylsilyloxy-l,4-pentadiene occurs to place the methyldiphenylsilyl group on the 1-position, providing, after deprotection, the 8-methyldiphenylsilyl ketone (6) (eq 10). ... 

Table 1 Regioselective reactions of 3-Triethylsilyloxy-l,4-pentadiene with typical electrophiles...

General Discussion. 3-Triethylsilyloxy-l,4-pentadiene may be used to prepare the useful 3-triethylsilyloxypentadienyl anion via metalation with sec-butyUithium (eq 1). ... 

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