3-Pyridinemethanamine → HCID 15961237, compound

Participants

Reaction Steps

A solution of 3-(3-piperidinomethylphenoxy)propylamine (from the dihydrochloride, 3.21 g; 10.0 mmoles) in 30 ml of methanol was added dropwise over a period of 60 minutes to a partial solution of 3,4-dimethoxy-1,2,5-thiadiazole 1-oxide (1.62 g; 10.0 mmoles) that had been cooled to 5°-7° in an ice-water bath. After 3 hours at ambient temperature, a solution of 3-aminomethylpyridine (1.14 g; 10.5 mmoles) in 10 ml of methanol was added and the solution was then stirred for 18 hours. The reaction mixture was evaporated under reduced pressure and the residue chromatographed by flash chromatography on 100 g of silica gel (230-400 mesh) using methylene chloride-methanol-ammonia. The appropriate fractions were combined, evaporated and triturated with acetonitrile to give 4.05 g of product. Recrystallization from isopropyl alcohol yielded the title compound, mp 139.5°-143°.

Provenance & Evidence