- Double Silylation of 1,4-Bis(trimethylsilyl)butadiyne with Disilanes Using a Palladium Catalyst
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Reaction of 1,4-bis(trimethylsilyl)butadiyne with polychlorodisilanes Si2ClxMe6-x in the presence of a palladium catalyst gives, after methylation, 1,1,4,4-tetrakis(trimethylsilyl)butatriene and/or 1,1,2,4-tetrakis(trimethylsilyl)-1-buten-3-yne selectively.Hydrogenation, hydrosilylation, and oxidation of the obtained butatriene were found to take place at C(1)=C(2) double bond exclusively.The regioselectivity is ascribed to the geminally substituted silyl groups which sterically direct the attack of electrophile and stabilize postulated radical intermediates.
- Kusumoto, Tetsuo,Hiyama, Tamejiro
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- PALLADIUM CATALYZED DOUBLE SILYLATION OF BIS(TRIMETHYLSILYL)BUTADIYNE BY MEANS OF DISILANES
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Reaction of bis(trimethylsilyl)butadiyne with Si2ClxMe6-x in the presence of a palladium catalyst gives, after methylation, 1,1,4,4-tetrakis(trimethylsilyl)butatriene and/or 1,1,2,4-tetrakis(trimethylsilyl)-1-buten-3-yne s
- Kusumoto, Tetsuo,Hiyama, Tamejiro
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p. 1807 - 1810
(2007/10/02)
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