Stereoselective carbon–carbon bond formation via alkylation of [(η-<sup>5</sup>C<sub>5</sub>H<sub>5</sub>)Fe(PPh<sub>3</sub>)(CO)(COMeCHR)](R = Me,Pr<sup>n</sup>,Ph): X-ray crystal structure of (Z)-[(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(PPh<sub>3</sub>)(CO)(COMeCHMe)]
作者:Gordon J. Baird、Stephen G. Davies、Richard H. Jones、Keith Prout、Peter Warner
DOI:10.1039/c39840000745
日期:——
[(η-2C5H5)Fe(PPh3)(CO)(Mthoxycarbene)]+ complexes, prepared either from terminal acetylenes or from the corresponding acyl complexes, are stereoselectively deprotonated, as evidenced by the crystal structure of (Z)-[(η5-C5H5)Fe(PPh3)(CO)(COMeCHMe)], to (Z)-methoxyvinyl complexes which can be stereoselectively alkylated under mild conditions to give elaborated acyl complexes.