Keto-stabilized phosphorus ylide gold(I) and gold(III) complexes

Article abstract of DOI:10.1016/S0022-328X(00)99038-7

Reactions between (tht=tetrahydrothiophene) and the ylides PH3PCHC(O)R give complexes > (R=Me, Ph), which react (1) with chlorine to give > (R=Me, Ph) and (2) with the same ylide and NaClO4 to form 2>ClO4 (R=MePh).The latter species react with chlorine to give trans-2>ClO4 (R=Me), and With (molar ratio 1/2 to give 2>ClO4 (R=OMe, OEt).The phosphonium salts ClO4 react with (acac=Acetylacetone)in 1/1 or 1/2 mplar ratio to give, respectively, (PPh3)>ClO4 (R=Me, Ph) or <2<μ-C(PPh3)C(O)R>>ClO4 (E=P, R=Me, Ph; E=As, R=Me).