The novel αphosphorus labile ylide of 1(ptolyl)2(triptolylphosphoranylidene)ethanone (PTTPPY) is prepared by the reaction of 2bromo1(ptolyl)ethanone with triptolylphosphine in chloroform as solvent. The complexes of the type [HgX 2 (ptolyl) 3 PCHCOC 6 H 4 CH 3 )] (X = Cl, Br and I) are prepared by the reaction of title ylide with mercury(II) halides in good yields, using methanol as solvent. The final products were characterized by IR, 1 H, 13 C, 31 P NMR spectroscopic methods and microanalysis.
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