Imidazole → 2-(Tertbutyldiphenylsilyloxy)propanamide

関与物質

反応条件

反応手順

2-hydroxy-propanamide (227 mg, 2.55 mmol), DMF (2 ml), tert-butylchlorodiphenyl-silane (1.0 ml, 1057 mg), imidazole (266 mg, 3.91 mmol) and 4-dimethylaminopyridine (93 mg, 0.764 mmol) dissolved in DMF (2 ml) were stirred under nitrogen atmosphere over the weekend. After the weedend the temperature was raised to 90° C. and was left to react for another 4 h. The mixture was then evaporated and extracted with DCM/water and the combined organic phases were evaporated. The product was purified by column chromatography. 1H-NMR (400 MHz; DMSO-d6): δ 1.04 (d, 9H), 1.12 (d, 3H), 4.00 (q, 1H), 7.04 (bs, 1H), 7.24 (bs, 1H), 7.40-7.51 (m, 6H), 7.58-7.66 (m, 4H).

情報源と証拠