Intramolecularradicalcyclization of phosphine oxides (R1R2P(O)H) induced by radical generators affords the corresponding dibenzophosphole oxides in excellent yields. By applying this method, linearly π-extended ladder-type dibenzophosphole oxides were successfully synthesized.
由自由基产生剂引起的膦氧化物(R 1 R 2 P(O)H)的分子内自由基环化以优异的产率提供了相应的二苯并磷氧化物。通过应用该方法,成功地合成了线性π-延伸的梯型二苯并二磷氧化物。