Nowadays, most enantioselective transformations rely on two strategies: i) the use of chiral auxiliaries and ii) asymmetric catalysis. The former allows the development of general and robust processes, but requires stoichiometric amounts of enantiopure precursors and multi-step procedures. By contrast, asymmetric catalysis relies only on substoichiometric amounts of enantiopure molecules, but it generally requires an intensive optimization at the expense of robustness and generality. To overcome these limitations, we envisioned a catalytic enantioselective method, which would introduce a chiral auxiliary on the substrate from a cheap non-chiral tether in a synthetic useful step (Scheme 1A). This process would require only a catalytic amount of enantiopure species while providing a robust platform for further diastereoselective functionalizations, benefiting from the best aspects of the two traditional strategies. To the best of our knowledge, such an approach has not yet been realized, although different methods for improving asymmetric synthesis have been developed. For example, based on an internal chirality transfer, Maulide and coworkers recently reported a redox-neutral coupling of alkenes and aldehydes via a "catchrelease" tethering approach (Scheme 1B). However, the resulting functional group (a ketone) remains in the product. Other researchers have worked on the concept of "transient chiral auxiliaries/tethers", which are easy to install and remove. For example, Beauchemin and co-workers have used chiral aldehydes in substoichiometric amounts for the cope-type hydroamination of allyl amines (Scheme 1C). However, the scope of these transformations remains limited, and auxiliaries available from the chiral pool are generally required.