反应详情

4-hydroxybenzaldehyde (4.094 mmol, 1 eq), 2-bromo-5-(trifluoromethyl)pyridine (4.094 mmol, 1 eq) and potassium carbonate (6.142 mmol, 1.5 eq) were suspended in N,N-dimethylformamide (15 ml). The reaction mixture was irradiated by microwave Biotage Initiator at 130° C. for 30 min. Reaction mixture was diluted with EtOAc (15 ml) and extraction with water followed (3×15 ml). Organic layers were combined, washed with brine, dried over MgSO4, filtered and evaporated giving 4-(5-trifluoromethyl-pyridin-2-yloxy)-benzaldehyde (3.443 mmol, yield=84%, purity=94%). [M+H]+=268.25 1H NMR (300 MHz, DMSO-d6) δ/ppm 7.33-7.38 (m, 1H), 7.43 (d, J=8.5 Hz, 2H), 7.99 (d, J=8.7 Hz, 2H), 8.26-8.33 (m, 1H), 8.57-8.62 (m, 1H)

1. customThe reaction mixture was irradiated by microwave Biotage Initiator at 130° C. for 30 min
2. customReaction mixture
3. washwashed with brine
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. customevaporated