Chiral Inductive Diastereoconvergent Allylation Reactions of Allyltrimethylsilane and Diastereomixtures of Diarylmethanols Catalyzed by FeCl3.

We report the chiral‐auxiliary‐controlled diastereoconvergent allylation reactions of allyltrimethylsilane with diastereomeric mixtures of diarylmethanols in the presence of FeCl3 as a Lewis acid catalyst. This reaction was successfully applied to a variety of substrates; it proceeded irrespective of the substituent on the aromatic ring of the substrate. The present method was used as the key step in synthesizing (R)‐tolterodine. Diastereoconvergent Manner: FeCl3‐catalyzed chiral‐auxiliary‐controlled diastereoconvergent allylation reactions of allyltrimethylsilane with diastereomeric mixtures of diarylmethanols were achieved with high yields and selectivities. [ABSTRACT FROM AUTHOR]