反应详情

According to example 1, 5.07 g (16 mmol) of 3-(4,4-dimethyl-heptanoyl)-4-methyl-5-phenyl-oxazolidin-2-one, 18 mL (1N, 18 mmol) of NaHMDS solution and 4.72 mL (32 mmol) of bromo-acetic acid tert-butyl ester gave 3.40 g (49.3%) of the title compound as a crystalline solid. 1HNMR (400 MHz; CDCl3): 0.85–0.89 (m, 12H), 1.18–1.32 (m, 6H), 1.41 (s, 9H), 1.88 (dd, 1H, J=6 Hz, 8.4 Hz), 2.41 (dd, 1H, J=6 Hz, 16 Hz), 2.62 (dd, 1H, J=8.4 Hz, 16 Hz), 4.30–4.40 (m, 1H), 4.72 (m, 1H), 5.62 (d, 1H, J=7 Hz), 7.30–7.40 (m, 5H). m.p.: 83–85° C.