The disilanol (CMe3)2Si(OH)2 (1) serves as a starting material in the reaction with C4H9Li and sodium for the construction of the alkali derivatives 2,3,4, and the siloxanes 5,6,7,8. The six-membered cyclosiloxane 10 and the spirocyclic compound 11 are easily prepared in the reaction of [(Me3C)2Si(OH)]2O (8) with 2C4H9Li and SiF4 or SnBr4. The crystal structures of (Me3C)2Si(OLi)2 (3), (Me3C)2Si(ONa)OH (4), and (Me3C)2Si(ONa)OSiF(Me3C)2 (9) have been determined and are discussed.
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Schütte et al. (1993) studied this question.