Fig. 6: Controlled experiment.

a The reaction between (±)-1a and 2b with 1 equiv H2O18 as additive. b The chiral calcium phosphate Ca[A]2 and L3[(NCMe)AuSbF6] catalyzed reaction between (±)-1a and 2b was run to partial conversion. c The chiral calcium phosphate Ca[A]2 and L6[(NCMe)AuSbF6]2 catalyzed reaction between (±)-1a and 2b was run to partial conversion. d The reactions between protected o-hydroxybenzyl alcohol 10 and 2b under standard conditions.