Use of an Optically Active Germanium Species for the Resolution of Diastereoisomeric Transition Metal Complexes with Five Different and Independent Ligands

Article abstract of DOI:10.1016/0022-328X(87)80304-2

Reaction of optically active MePh(1-C10H7)GeLi with (η⁵-C5H5)M(CO)2NO (M= Mo, W) results in replacement of CO and formation of anionic species which can be alkylated with CH3I to afford mixtures of diastereoisomeric complexes, (η⁵-C5H5)M(CO)(NO)(GeR3)CH3 (R3= MePh(1-C10H7); M= Mo, W).These complexes are the first in which a transition metal, surrounded by five different ligands shows optical activity.These compounds are not fluxional and show a high optical stability; under forcing conditions decomposition occurs before epimerisation.