反应详情

A mixture of ethyl 4-{[1-(diphenylmethyl)azetidin-3-yl]oxy}-2-methyl-1-benzofuran-6-carboxylate (2.1 g, 4.77 mmol) in EtOAc/MeOH (10 mL/20 mL) and Pd/C (0.060 g, 10%, 0.048 mmol) was stirred for 14 hours under a hydrogen atmosphere (balloon). The mixture was filtered through a bed of Celite washing with methanol. The sample was concentrated to give a pale white solid (quantitative yield), which was used without further purification. 1H NMR (300 MHz, CHLOROFORM-d) δ ppm 1.35-1.52 (m, 3 H) 2.18 (s, 1 H) 2.47 (s, 3 H) 3.78-3.94 (m, 2 H) 4.00-4.13 (m, J=7.16 Hz, 2 H) 4.29-4.49 (m, 2 H) 5.11-5.27 (m, 1 H) 6.52 (s, 1 H) 7.05 (s, 1 H) 7.78 (s, 1 H); MS (ESI, pos): 276.

1. filtrationThe mixture was filtered through a bed of Celite
2. washwashing with methanol
3. concentrationThe sample was concentrated