Imidazole → 1-Bromo-3-((((1,1-dimethylethyl)dimethylsilyl)oxy)methyl)benzene

Participants

Reaction Steps

To a solution of 3-bromobenzyl alcohol (5.00 g, 26.7 mmol) in freshly drieddimethylformamide (10 mL) was added t-butyldimethylsilyl chloride (5.13 g, 33 mmol) and imidazole (4.56 g, 67 mmol). The resulting solution was stirred overnight at ambient temperature. The reaction mixture was poured into water and extracted (3x, 50 mL 1:1 ether:hexanes). The combined organic layers were washed (2x, brine), dried over MgSO4, filtered, and concentrated in vacuo to give a colorless oil which was passed througha short silica gel plug using 10% methylene chloride:hexanes to give pure 3-(t-butyldimethylsilyloxymethyl)bromobenzene (7.9 g, 98%). 1H NMR (300 MHz, CDCl3) δ 7.47 (1H, br s), 7.37 (1H, dt, J =7, 1 Hz), 7.16-7.25 (2H, m), 4.24 (2H, s), 0.94 (9H, s), 0.11 (6H, s). MS m/e 318/320(M+NH4)+.

Provenance & Evidence