Synthesis of group 6 metal carbonyls with hybrid P-donor crown ether and aza-crown ether ligands and the effect of phosphorus substituents on their reaction with RLi reagents

Article abstract of DOI:10.1021/om00114a030

A series of α,ω-di-P-donor ligands of the type X-XP-O O-PX-X {P₂?; X-X = MeNCH₂CH₂NMe, MeN(CH₂)₃NMe, 1,2-O₂C₆H₄, OCH₂CH₂O; O O = O(CH₂