Tertiary acetylenic alcohols have been transformed into the O‐trimethylsilyl derivatives with trimethylsilyl chloride and triethylamine, using catalytic amounts of dimethyl sulfoxide, hexamethylphosphoric triamide, imidazole, or 1,5‐diazabicyclo[5.4.0]undec‐5‐ene. Saturated tertiary alcohols can be trimethylsilylated in the same way.
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Visser et al. (1980) studied this question.
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