for the following products
(S)-(-)-2,2'-bis-(di-(3,5-Xylyl)phosphino)-1,1'-binaphthyl | (S)-(-)-3,5-Xylyl-BINAP | (S)-2,2'-bis-(bis-(3,5-Dimethylphenyl)phosphino)-1,1'-binaphthalene | (S)-DM-BINAP and (S)-(-)-2,2'-bis(di-(3,5-dimethylphenyl)phosphino)-1,1'-binaphthyl
