“…Arylphospholes, 3-phospholenes, phospholanes, a 1,4-dihydrophosphinine and a 1,2,3,6-tetrahydrophosphinine were converted to the corresponding platinum complexes by Kollár and Keglevich [6e9]. Pringle et al described the platinum complexes of a few phospholanes, phosphinines and phosphepanes [10], as well as those of 9-phosphabicyclononanes (Phobanes) [11] and 6-phospha-2,4,8-trioxaadamantanes [12]. Among the bidentate heterocyclic P-ligands, DuPhos [13], PennPhos [14] and BIPNOR [15] are to be mentioned, but only DuPhos has been applied in platinum complexes [16e18].…”