Efficient Synthesis of (E)-Vinylgermanes via Stille Cross-Coupling Reaction from 1-Tributylstannyl-2-trialkyl(triphenyl)germylethylenes

Abstract

The transfer of a β-vinylgermyl synthon is easily achieved by Stille reaction using (E)-1-tributylstannyl-2-trialkyl(or triphenyl)germylethylenes. With this methodology good yields of (E)-aryl or heteroarylvinylgermanes, stereodefined germyldienoic acids, and germyl α,β-enones are obtained from acid chlorides.

Key words

coupling reactions - organogermanium compounds - palladium catalyst

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