tert-Butyldimethylsilyl chloride → Tert-butyl(dimethyl)-{[3-nitro-5-(trifluoromethyl)benzyl]oxy}silane

Participants

Reaction Steps

To a solution of [3-nitro-5-(trifluoromethyl)phenyl]methanol (2.80 g, 12.7 mmol) in DCM (20 mL) was added DIPEA (6.62 mL, 38.00 mmol). The reaction mixture was cooled to 0° C. tert-Butyldimethylsilyl chloride (3.82 g, 25.3 mmol) was added dropwise and the reaction mixture was allowed to stir at rt over the weekend. The reaction mixture was diluted with DCM and washed with water and brine. The organic solution was dried over Na2SO4, filtered and concentrated. The residue was purified by column chromatography to give tert-butyl(dimethyl)-{[3-nitro-5-(trifluoromethyl)benzyl]oxy}silane (3.71 g, 87%) as a white solid. 1H NMR (400 MHz,CDCl3, HCl salt) δ: 8.35-8.41 (m, 2H), 7.92 (s, 1H), 4.88 (s, 2H), 0.97 (s, 9H), and 0.15 (s, 6H).

Provenance & Evidence