Information). Applying this sequence to 1 produces allylic phosphate (R)-62, where the site adjacent to where the next C-C bond will be formed is sterically hindered and contains two electronically active phenyl groups. Arylation of (R)-62 using L6 or ent-L6, gave (R,R)-63 and (R,S)-66, respectively, with excellent diastereoselectivities (>20:1 ) and no such reduction in yield was observed in a subsequent iteration to form (R,R,R)-