Purines. LXVIII. Trifluoroperoxyacetic acid oxidation of N6-benzyladenine: Formation of the N(3)-oxide and N(7)-oxide, and their cytokinin activities
Treatment of N6-benzyladenine (2) with 15% aqueous H2O2 in trifluoroacetic acid at 65-70°C for I h was found to give the N(3)-oxide (3) and the N(7)-oxide (4) in 4% and 4% yields, respectively. The structure of 3 was estab