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2005
Organo-silicon compounds
S 0060
Silylcupration of Allene with the Lower Order Cuprate (t-BuPh2Si)CuCNLi and
with α,β-Unsaturated Nitriles. An Unusual Diaddition Process Leading
20- 178 Reaction
to Disilyl Functionalized Ketones. — The title reaction is investigated for a variety of
nitriles. Electron-poor nitriles (III) as strong Lewis acceptors give selectively allylsilane-containing nitriles (IV). Alkyl substituted electron-rich nitriles are weaker Lewis
acceptors and afford allylsilane—vinylsilane difunctionalized ketones (VI) and (VIII).
— (BARBERO, A.; BLANCO, Y.; FERNANDEZ, H.; PULIDO*, F. J.; Synlett 2004,
15, 2833-2835; Dep. Quim. Org., Fac. Cienc., Univ. Valladolid, E-47011 Valladolid,
Spain; Eng.) — Steudel
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