103334-80-1Relevant articles and documents
Preparation and Ligand-exchange Reactions of Phosphinegold Ethynyl Complexes
Cross, Ronald J.,Davidson, Michael F.
, p. 411 - 414 (1986)
Phosphinegold chlorides, , react readily with terminal alkynes RC*CH in ethanolic sodium ethoxide to produce high yields of ethynyl complexes .When R = H a second reaction leads to formation of .In a similar manner, the cyclopentadienyl complex can conveniently be made from , Na(OEt), and C5H6.The phosphine of rapidly exchanges in solutions with free phosphines.The compounds and > readily equilibrate with and >, a reaction which could also involve exchange of phosphines, but the exchange of Cl for C*CPh is another possible pathway.Phenylethynyl groups from exchange with both chlorides of HgCl2, cis-, and cis-.With the latter complex the exchange is non-stereospecific, unlike related reactions with organomercurials.