Synonyms: Phospholane,1,1'-(1,2-ethanediyl)bis[2,5-dimethyl-, [2R-[1(2'R*,5'R*),2a,5b]]-; (+)-1,2-Bis[(2R,5R)-2,5-(dimethylphospholan-1-yl)]ethane;(R,R)-Me-BPE; (S,S)-Me-en-DUPHOS; 1,2-Bis(2R,5R-2,5-dimethylphospholano)ethane;1,2-Bis[(2R,5R)-2,5-dimethylphospholan-1-yl]ethane