Methyl iodide → HCID 13229641, compound

Participants

Reaction Steps

Methyl 2-(2-p-chlorophenoxy-4-pyridyl)propionate (3.13 g) is treated with methyl iodide in the presence of 50 % sodium hydride in anhydrous tetrahydrofuran in a nitrogen atmosphere at room temperature for 1 hour and then at 40° C for 30 minutes, whereby methyl 2-(2-p-chlorophenoxy-4-pyridyl)isobutyrate (2.59 g) is obtained as crystals melting at 92° to 92.5° C. Then, this substance is treated with a mixture of 20 % aqueous potassium hydroxide and 95 % ethanol with refluxing for 10 minutes, whereby 2-(2-p-chlorophenoxy-4-pyridyl)isobutyric acid (2.35 g) is obtained as crystals melting at 135° to 136° C.

Provenance & Evidence