Use of a Catalytic Chiral Leaving Group for Asymmetric Substitutions at sp<sup>3</sup>
-Hybridized Carbon Atoms: Kinetic Resolution of β-Amino Alcohols by <i>p</i>
-Methoxybenzylation
catalytic strategy was developed for asymmetric substitution reactions at sp3‐hybridized carbon atoms by using a chiral alkylating agent generated in situ from trichloroacetimidate and a chiral phosphoric acid. The resulting chiral p‐methoxybenzyl phosphate selectively reacts with β‐amino alcohols rather than those without a β‐NH functionality. The use of an electronically and sterically tuned chiral