Synthesis of novel bis[(tris(dimethylsilyl)methyl)alkyl]ferrocene derivatives as new ferrocenyl multi-functional silyl ether compounds

Abstract

Some new branched polysilyl ethers with a ferrocene core were synthesized through treatment of 1,1-bis[tris(dimethylsilyl)methyl]alkylferrocenes with various alcohols by Karstedt catalyst. Bis(chloroalkyl)ferrocenes are synthesized by acylation of ferrocene with 3-chloropropanoyl chloride and 4-chlorobutanoyl chloride. The obtained 1,1-bis(3-chloropropanoyl)ferrocene and 1,1-bis(4-chlorobutanoyl)ferrocene underwent a reduction and chlorides were replaced by bromides, and then they were treated with (Me3Si)3CLi and (HMe2Si)3CLi give silane compounds 6a-b and 7a-b.