Title compd. (I), useful as treating agents for epilepsy, was prepd. by the reaction of 4-lower alkyl-3-phenoxypyridine and oxidation agents. Thus, 25g 4-methyl-3-phenoxy- ridine in 90ml glacial acetic acid was stirred with 30ml 40% peracetic acid at 60≰C for 12 hr. The reaction products was heated to 60≰C for 4 hr in 10ml 40% peracetic acid, and 90≰C, 4 hr in 500ml dichloromethane to give 4-methyl-3-phenoxypyridine-1-oxide.
PROCESS FOR PREPARATION OF 4-LOWER ALKYL-3-PHENOXYPYRIDINE-1-OXIDE