Organometallics in Water: Three-Coordinate [Pt0(N,N-chelate)(η2-olefin)] Complexes Containing New Chiral Ligands Based on α-<scp>d</scp>-Mannose

New bidentate nitrogen ligands based on α-D-mannose were prepared and investigated by preparing a family of platinum(0) complexes of formula [Pt(N,N-chelate)(η2-olefin)]. The ability of one N,N-chelate to induce a stereoselective reaction in water was assessed.