The preparation of bis- and tris-(trimethylsilyl)acetic acid |
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| Authors: | Omar W. StewardJames S. Johnson |
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| Affiliation: | Department of Chemistry, Dusquesne University, Pittsburgh, Pennsylvania 15219 U.S.A. |
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| Abstract: | Contrary to an earlier report, lithiation of tris(trimethylsilyl)methane followed by carbonation does not yield the acid (Me3Si)3CCO2H, (I), if an alkali extraction step is included in the work up; the product is actually the acid (Me3Si)2CHCO2H, (II). The acid (I) can be obtained if the alkali extraction is omitted. Separate experiments have confirmed that (I) is rapidly converted into (II) by aqueous or methanolic base. |
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