2-Methyl-2-butene → HCID 86698663, compound

Participants

Reaction Steps

A solution of 5-[4-(1-{[tert-butyl(dimethyl)silyl]oxy}-2-methylpropan-2-yl)phenyl]-6-chloro-1H-indole-3-carbaldehyde (130 mg, 0.294 mmol) in tetrahydrofuran (2.5 mL) and tert-butanol (2.5 mL) was treated with 2-methyl-2-butene (2.19 mL, 20.6 mmol) followed by a solution of sodium chlorite (496 mg, 5.9 mmol) and sodium phosphate monobasic hydrate (811 mg, 5.9 mmol) in water (2.5 mL) via glass pipet at room temperature. The reaction mixture was stirred vigorously at room temperature for 15 hours, and was poured into saturated aqueous ammonium chloride solution (35 mL). The product was extracted with ethyl acetate (3×25 mL), and the combined organic layers were dried over sodium sulfate, filtered and evaporated to give the title compound as an amber oil. MS (ES−) 456.6 (M−H)−. 1H NMR (400 MHz, CD3OD) δ 8.01 (s, 1H), 7.99 (d, J=1.2 Hz, 1H), 7.57 (s, 1H), 7.43 (d, 2H), 7.37 (d, 2H), 3.63 (s, 2H), 1.36 (s, 6H), 0.86 (s, 9H), −0.05 (s, 6H).

Provenance & Evidence