| Popis: |
A reaction of the radical cation of tris(2,4,6-triisopropylphenyl)phosphine with oxygen gave a phosphonium salt resulting from the introduction of the oxygen atom to the phosphorus and the formation of a five membered ring by participation of the ortho isopropyl group. On the other hand, oxidation of the phosphine with mCPBA afforded the corresponding phosphine oxide. X-ray crystallography showed that the C P C bond angles and the P C bond lengths of the phosphine oxide are similar to those of the corresponding phosphine. The corresponding arsine underwent analogous reactions to afford the arsonium salt and the arsine oxide. |
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