(R)-7,7′-双[二(3,5-二甲基苯基)膦基]-2,2′,3,3′-四氢-1,1′-螺二茚

(R)-7,7'-Bis(bis(3,5-dimethylphenyl)phosphino)-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]