Water → 3-(2-Methoxy-ethoxy)-2-nitro-5-phenoxy-pyridine

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Reaction Conditions

Reaction Steps

5-Chloro-3-(2-methoxy-ethoxy)-2-nitro-pyridine (0.68 mmol) is dissolved in DMF (7 ml), phenol (3 eq.) and K2CO3 (4 eq.) is added. The reaction mixture is heated to 100° C. in the microwave for 30 min. The reaction solution is pored into water and extracted with methyl-tert.-butyl ether. The combined organic layers are washed with brine, dried over MgSO4 and the solvent is removed in vacuo. 3-(2-Methoxy-ethoxy)-2-nitro-5-phenoxy-pyridine is obtained after column chromatography (heptane ethyl acetate) as yellow oil in a yield of 62%; HPLC (method C): 1.93 min; LC-MS (method A): 1.80 min, 291.15 (M+H+).

Provenance & Evidence