2022 Volume 80 Issue 5 Pages 421-430
Regiocontrol is very important to obtain the desired products efficiently in synthetic organic chemistry. Because there are many C-H bonds with similar reactivities in organic molecules, it was difficult to promote regioselective C-H transformations without using directing groups. In this account, I describe a new strategy to control regioselectivities in C-H transformations using noncovalent interactions, such as hydrogen bond and Lewis acid-base interaction, between the catalyst and the substrate. As a result, highly regioselective C-H transformations have been achieved. By using the catalytic system, the rate of the C-H transformation was accelerated and the yield of the product was improved dramatically. In addition, the substrate and functional group specificities were expressed.
