摘要:
A novel rhenium phosphonio methylidyne complex [((BuN)-Bu-t)(2)Re(C-PPh3)(S-Bu-t)] (3) was obtained via one-pot transylidation reaction of Re((NBu)-Bu-t)(2)Cl-3 (1) with [Ph3P-CH3][S-Bu-t] (2) and 3 equiv of phosphorus ylide Ph3P=CH2. The eta(2)-ketene rhenium(VII) complex [Re((NBu)-Bu-t)(2){eta(2)-(C,C)-O=C-C=PPh3}(S-Bu-t)] (4) was formed through C,C-coupling reaction of complex 3 with CO. The structure of complex 4 was confirmed with X-ray analysis.