反应详情

The title compound (129.2 mg) was prepared from 0.49 g of 4-oxo-piperidine-1-carboxylic acid tert-butyl ester, 286 μL of 2-fluorobenzylamine, and 0.46 g of (2-nitro-vinyl)-4-chlorobenzene, replacing SiO2 with crushed 4 Å molecular sieves. MS (ESI): exact mass calculated for C20H18ClFN2, 340.11; found, m/z 341.1 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.38-7.30 (m, 5H), 7.18-7.12 (m, 3H), 7.10-7.06 (m, 1H), 5.20 (s, 2H), 4.35-4.34 (m, 2H), 3.54 (t, J=6.3 Hz, 2H), 2.94 (t, J=6.3 Hz, 2H).

1. customwith crushed 4 Å molecular sieves