Methyl iodide → 5-Bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine

Participants

Reaction Steps

In 5 ml of dimethylformamide was dissolved 400 mg of 2-(5-tetrazolyl)-5-bromopyridine and the solution was reacted with 502 mg of iodomethane in the presence of 300 mg of potassium hydroxide at room temperature for 1 hour with stirring. After completion of the reaction, a post-treatment similar to that of Preparation Example 3 was conducted to obtain 110 mg of 2-(1-methyl-5-tetrazolyl)-5-bromopyridine (thin layer chromatography eluting with a mixture of 1:4 ethyl acetate:hexane, Rf: 0.3) and 220 mg of 2-(2-methyl-5-tetrazolyl)-5-bromopyridine (thin layer chromatography eluting with a mixture of 1:4 ethyl acetate:hexane, Rf: 0.5).

Provenance & Evidence