反应详情

A solution of tert-butyl 6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-ylcarbamate (11 mg, 0.031 mmol) in MeOH (2 mL) was treated with PtO2 and the reaction mixture was stirred under a blanket of hydrogen (from a latex balloon) for 2 h. The catalyst was filtered off and the filtrate concentrated to give tert-butyl 6-(4-amino-2-fluorophenoxy)pyrimidin-4-ylcarbamate (8 mg, 81%). 1H NMR (DMSO-d6) δ 10.62 (s, 1H), 8.43 (d, 1H, J=2.5 Hz), 8.36 (dd, 1H, J=9.8, 2.5 Hz), 8.36 (dd, 1H, J=9.8, 2.5 Hz), 8.20-8.17 (m, 1H), 7.71 (dd, 1H, J=8.8, 8.8 Hz), 7.49 (s, 1H), 1.48 (s, 9H).

1. filtrationThe catalyst was filtered off
2. concentrationthe filtrate concentrated