Triethylamine → (RS)-tert-Butyl-dimethyl-(4-oxiranylmethyl-phenoxy)-silane

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Reaction Steps

(RS)-4-Oxiranylmethyl-phenol (1 g, 6.66 mmol) was dissolved in CH2Cl2 (50 ml) and stirred at room temperature in the presence of tert-butyldimethylsilyl chloride (1.3 g, 8.66 mmol), 4-dimethyl-aminopyridine (0.018 g, 0.15 mmol) and triethylamine (1.2 ml, 8.66 mmol). After 22 hours at room temperature, the reaction mixture was washed with H2O (2×100 ml) and the resulting aqueous phases were extracted with CH2Cl2 (100 ml). The combined organic phases were dried over Na2SO4 and concentrated. The residue was chromatographed over silica gel (hexane-ethylacetate 9:1) to provide (RS)-tert-Butyl-dimethyl-(4-oxiranylmethyl-phenoxy)-silane (1.44 g, 82%) as yellow oil, MS: m/e=264 (M+).

Provenance & Evidence