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ChemicalBook CAS DataBase List Trimethyl(phenoxy)silane
1529-17-5

Trimethyl(phenoxy)silane synthesis

13synthesis methods
General procedure for trimethylsilylation of alcohols with HMDS catalyzed by P2O5/Al2O3. P2O5/Al2O3 (0.1 g) was added to a stirred solution of the alcohol (10 mmol) and HMDS (7.5 mmol) and the mixture was stirred at room temperature for the time specified in Table 2. The reaction was followed by TLC (n-hexane-EtOAc, 9:1). After completion of the reaction, ethyl acetate was added to the reaction mixture and the catalyst was isolated by filtration. It was washed well with ethyl acetate (2 9 5 ml) and then dried at 100°C for 2 h before being used again. The filtered solution was evaporated and purified by passage through a short column of silica gel with n-hexane as eluent (2 x 20 ml). Evaporation of the solvent under reduced pressure gave the pure product Trimethyl(phenoxy)silane, Yield; 89%.
syn.jpg
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Yield: 99%

Reaction Conditions:

tetrabutylammomium bromide at 30; for 2.5 h;

References:

Amantini;Fringuelli;Pizzo;Vaccaro [Journal of Organic Chemistry,2001,vol. 66,# 20,p. 6734 - 6737]

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