A. Barbero et al., SYNTHESIS OF VINYLSILANES BY SILYL-CUPRATION OF ACETYLENES USING TERT-BUTYLDIPHENYLSILYL-CUPRATE REAGENTS, Journal of the Chemical Society. Perkin transactions. I, (12), 1995, pp. 1525-1532
The tert-butyldiphenylsilyl-cuprate 2 reacts with acetylenes 1 and 5-1
0 to give vinyl-cuprates 3 and 11, which react with electrophiles to g
ive the vinylsilanes 4 and 12-17 carrying the relatively hindered and
hence unreactive ter b-butyldiphenylsilyl group. In comparative tests,
the tert-butyldiphenylsilyl group shows some properties that are usef
ully different from those of relatively unhindered silyl groups and ot
hers that are similar.