(Trialkylstannyl)dimethylsilane as a new precursor of dimethylsilylene: a novel synthesis of 3,4-disubstituted 1-silacyclopenta-2,4-dienes
摘要:
In the presence of triphenylphosphinepalladium complexes, (trialkylstannyl)dimethylsilane rapidly reacted at room temperature with terminal acetylenes to give 3,4-disubstituted 1-silacyclopenta-2,4-dienes in moderate yield. The formation of 1-silacyclopentadiene derivatives is evidence for the generation of dimethylsilylene species from (trialkylstannyl)dimethylsilane.
In the presence of triphenylphosphinepalladium complexes, (trialkylstannyl)dimethylsilane rapidly reacted at room temperature with terminal acetylenes to give 3,4-disubstituted 1-silacyclopenta-2,4-dienes in moderate yield. The formation of 1-silacyclopentadiene derivatives is evidence for the generation of dimethylsilylene species from (trialkylstannyl)dimethylsilane.