(2S,3S)-4-(Anthracen-9-yl)-3-(tert-butyl)-2-ethyl-2,3-dihydrobenzo[d][1,3]oxaphosphole
(2S,3S)-4-(Anthracen-9-yl)-3-(tert-butyl)-2-ethyl-2,3-dihydrobenzo[d][1,3]oxaphosphole 1g : Chiral phosphine-oxaphosphole ligand with anthracene moiety for selective asymmetric catalysis and high stereocontrol.