An efficient method for the trimethylsilylation of tertiary alcohols
✍ Scribed by R. G. Visser; H. J. T. Bos; L. Brandsma
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 112 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0165-0513
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✦ Synopsis
Abstract
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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## Abstract For Abstract see ChemInform Abstract in Full Text.
In the presence of anhydrous cerium(III1 chloride, Grignard reagents react with ketones to afford addition products in high yields, even though the substrates are susceptible to abnormal reactions with Grignard reagents alone. ## The reaction of Grignard reagents with carbonyl Sympounds is well-k