Oxidation of N6-benzyladenine with m-chloroperoxybenzoic acid: formation of the N(1)-oxide

Oxidation of N 6 -benzyladenine (2) with m-chloroperoxybenzoic acid in MeOH has been found to give N 6 -benzyladenine 1-oxide (1) as the main product. The structure of 1 has been established by leading it to N 6 -methoxyadenine (4) though O-methylation, Dimroth rearrangement, and nonreductive debenzylation