For the reasons discussed above, we started our synthetic approach with the goal of attaching a 4CzIPN derived moiety to a BINOL-based chiral phosphoric acid. We envisioned starting our synthesis of this new chiral photocatalyst from the literature reported chiral BINOL boronic acid 2 (Scheme 3A). Scheme 3: Synthesis of chiral boronic acid 2 (A) and brominated 4CzIPN-derivative 4 (B).