THE 1ST NON-FLUORINATED ARYLXENON CATIONS - REACTIONS OF XENON DIFLUORIDE WITH CHLOROPHENYLBORON, CHLOROPHENYLLITHIUM, CHLOROPHENYLSILICON,AND CHLOROPHENYLTIN DERIVATIVES

Tris(chlorophenyl)boranes BAr3 (Ar = 2,6-Cl2C6H3, 2,4,6-Cl3C6H2) could be prepared from the reactions of ArMgI with BF3.O(CH3)2 in about 25% yield. The reactions of these boranes and of B(4-ClC6H4)3 with XeF2 i n the presence of BF3 . O(CH3)2 led to the formation of [XeAr][BF4]. T he compound [Xe(4-ClC6H4)][BF4] Was isolated in 34% yield as a colourl ess solid with a decomposition point of -4 +/- 2-degrees-C. The deriva tives with the substituents. 2,6-Cl2C6H3 and 2,4,6-C13C6H2 could only be obtained as a product mixture. Reactions of XeF2 with Li(2,6-Cl2C6H 3), (CH3)3Si(2,6-Cl2C6H3) and the hitherto unknown (CH3)3Sn(2,4,6-Cl3C 6H2) did not give evidence for the formation of an arylxenon derivativ e.