M. Kira et al., Novel 1,2-dilithiodisilanes derived from reduction of stable tetrakis(trialkylsilyl)disilenes with lithium metal, CHEM LETT, (9), 2001, pp. 910-911
1.2-Dilithiotetrakis(trialkylsilyl)disilanes [(R3Si)(2)SiLi](2) (R3Si = t-B
uMe2Si and i-Pr2MeSi) were prepared as stable off-white powder by the reduc
tion of the corresponding tetrakis(trialkylsilyl)disilenes with lithium in
THF. The 1,2-dilithiodisilanes reacted with water, iodomethane, and chloros
ilanes to give the corresponding disubstituted products in high yields.