| 摘要 |
Aromatic phosphorus-chlorine compounds, especially diphenylphosphinyl chloride (C6H5)2P(O)Cl, phenylphosphonyl dichloride C6H5P(O)Cl2, dichlorophenylphosphine C6H5PCl2 and chlorodiphenylphosphine (C6H5)2PCl, and the corresponding sulfur analogs, are obtained by reaction of aromatic phosphorus compounds, which contain oxygen or sulfur, of the formula I <IMAGE> (I) in which X=O or S, and m=1, 2 or 3, with phosphorus-chlorine compounds of the formula II (C6H5)3-nP Cln(II) in which n=1, 2 or 3, at temperatures between about 330 DEG and 700 DEG C. Preferred starting materials are triphenylphosphine oxide (C6H5)3PO and phosphorus trichloride PCl3. The reaction products are mainly intermediates in a variety of special areas, such as the pharmaceuticals, plant-protection, dye and polymer sectors.
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