Abstract Reactions between bis (trimethylsilyl) methyllithium and the chlorides ECl 3 (E= B or Al) yield the di [bis (trimethylsilyl) methyl] derivatives [(Me 3 Si) 2 CH] 2 ECl. The boron compound may be converted by compounds HX (X= OH, NH 2, NMe 2) in the presence of bases to compounds [(Me 3 Si) 2 CH] 2 BX but the aluminium—carbon bond in [(Me 3 Si) 2 CH] 2 AlCl is easily broken with formation of (Me 3 Si) 2 CH 2. Bis (trimethylsilylmethyl) ...
