Abstract: | Formation of Organosilicon Compounds. 98. Reaction of Silylated Phosphorus Ylides with PCl3 The reaction of Si-substituted phosphorus ylides as Me2Si(CH2? SiMe2)2C?PMe3Br 1 , Cl2Si(CH2? SiCl2)2C?PMe2Cl 2 , and (Cl3Si)2C?PMe2Cl 3 with PCl3 yields (Cl2P)2C?PMe2Cl 5 by chlorinating cleavage of the Si-ylid-C bond. Besides 5 also (ClMe2SiCH2)2SiMe2, (Cl3SiCH2)2SiCl2, resp. SiCl4 result from the reaction of 1, 2 and 3 with PCl3. (Cl2P)2C?PMe2Cl forms colourless crystals, mp. 84°C. |