A NEW P-CHIRAL AMINOPHOSPHINE LIGAND CONTAINING A 2,2'-COUPLED PYRROLIDINE-PHOSPHOLANE RING-SYSTEM - SYNTHESIS AND COORDINATION PROPERTIES WITH RHODIUM(I) AND IRIDIUM(I) FRAGMENTS

A new approach to the synthesis of chiral P,N-ligands containing a ste reogenic phosphorus atom is reported; the synthesis, characterization and coordination properties of (PR, 2R, 3R, 2'R, 3'S, 4'S) ropyrrolyl) ]-3-methoxy-1-phenyltetrahydrophosphole (P-N-1), which contains a ste reogenic phosphorus in addition to five contiguous stereocentres in th e ligand backbone; compound P-N-1 represents the first example of a n ew class of chiral P,N-ligands with the heteroatoms incorporated in tw o 2,2'-coupled pyrrolidine-phospholane rings.