反应详情

The compound of step 1 (1.13g; 5.56 mmol) in 6 mL of DMF was treated with NaH 80% (0.18 g; 5.99 mmol) at 25° C. After 30 min a solution of 1-naphthoyl chloride in 5 mL of DMF was added dropwise The reaction mixture was left stirring for 16 h and poured into cold water-EtOAc. The organic phase was washed with H2O (2×15 mL) and brine, dried over Na2SO4 and the solvent removed. Chromatography on silica gel (eluted with 2% EtOAc in toluene) yielded 0.86 g (43%) of the title compound. 1H NMR (CDCL3, 400 MHZ) Δ2.20 (S, 3H), 3.67 (S, 3H), 7.0 (M, 1H), 7.10-7.26 (M, 3H), 7.45-7.60 (M, 5H), 7.95 (M, 1H) AND 8.07 (M, 3H).

1. waitwas left
2. washThe organic phase was washed with H2O (2×15 mL) and brine
3. dry with materialdried over Na2SO4
4. customthe solvent removed