(R,R)-2,3-Bis(diphenylphosphinoyl)butane

2,3-di[bis(phenylphosphinyl)]buta-1,3-diene

二苯基氯化膦

(2R,3R)-2,3-丁烷二基二(4-甲基苯磺酸酯)

三苯基磷