217174-54-4Relevant academic research and scientific papers
Transition-metal-substituted phosphanes, arsanes and stibanes, LXIII.: Coupling reactions of alkynes with iron coordinated diphenylphosphane: Generation of an alkenylphosphane and a chelating bisphosphane ligand 1
Malisch, Wolfgang,Rehmann, Franz-Josef,Jehle, Heinrich,Reising, Joachim
, p. 107 - 112 (1998)
The reaction of {Cp(OC)2[H(Ph)2P]Fe}BF4 (1) with acetylenedicarboxylic acid dimethyl ester (2) in the presence of Et3N followed by addition of HBF4 leads to the cationic alkenylphosphane complex [Cp(OC)2Fe-P(Ph)2-C(CO2Me)=C(CO 2Me)H]BF4 (5). In contrast, the reaction of the bis(diphenylphosphane) complex {Cp(OC)[H(Ph)2P]2Fe}BF4 (6) with 2 yields {Cp(OC)Fe[P(Ph)2-C(H)(CO2Me)-C(H)(CO 2Me)-PPh2]}BF4 (7), bearing a functionalised dppe-analogous chelate phosphane. The molecular structures of 5 and 7 are determined by single crystal X-ray analysis.
