1970 年 90 巻 7 号 p. 859-862
Reaction of imidazo [4, 5, 1-kl] phenoxazine (I) with trimethylsulfoxonium iodide (TMSI), prepared from DMSO with methyl iodide, in DMSO at 105° under nitrogen atmosphere gave 2-methyl-1, 2-dihydroimidazo [4, 5, 1-kl] phenoxazin-1-one (III). Similar reaction of I with TMSI in propanol or diethylene glycol afforded 1-methyl-(formyl) aminophenoxazine (V). The synthetic mechanisms of III and V were clarified.