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Scope of Pronucleophiles in AAA Reactionsa
[a] Isolated yields with ee’s determined by chiral HPLC. [b] Reactions performed using 1.0 equiv. of 1, 3 equiv. of 2b and 4 equiv LiN(SiNe3)2. [c] A two-step one pot procedure was employed to afford the chromium-free product with only 2% ee erosion. [d] Reaction time was 4 h. [e] Reaction time was 2.5 h. [f] The dr value was 55 : 45.
