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A straightforward route to polyenylsilanes by palladium- or nickel-catalyzed cross-coupling reactions

✍ Scribed by Francesco Babudri; Gianluca M. Farinola; Vito Fiandanese; Luigia Mazzone; Francesco Naso

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
547 KB
Volume
54
Category
Article
ISSN
0040-4020

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✦ Synopsis

An efficient conversion of bis-silylated dienes and trienes into polyenylsilanes by cross-coupling reactions is described. The aryl substituted polyenes are syn~ by ipso.borodesilylation with BCI3 followed by Pd-catalyzed coupling reactions of the resulting boron derivative with aryl halides, whereas the synthesis of alkyl substituted polyenes requires the conversion of the boron intermediate into iodo-derivative and the subsequent coupling with alkyl Grignard reagents in the presence of a Ni(II) catalyst.

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