抄録
The reaction of o-phenylenediamine with phenylphosphorodichloridate was reexamined. Unlike Autenrieth and Bolli's report, 2-phenoxy-1, 3-dihydro-2H-1, 3, 2-benzodiazaphosphole 2-oxide (I) has not been obtained by their procedure. Instead, phenyl hydrogen N-(2-aminophenyl) phosphoroamidate (V) was obtained by the reaction in refluxing benzene. When the reaction was carried out by the fusion method, a roughly equal amount of V and o-phenylenediamine salt of diphenyl phosphate (VI) were isolated. The solubility and reactivity of both compounds V and VI were compared with those of the Autenrieth and Bolli's compound and it was concluded that their synthesis should be refuted. Finally the diazaphosphole I was synthesized by the reaction in bromobenzene and the properties of I was quite different from those of the Auterieth and Bolli's compound.
