| Rawal Group: Total synthesis. Development of useful synthetic methods. |
| Rebek Group: Combinatorial chemistry and self-assembling systems. |
| Reich Group: Organometallic chemistry. |
| Renaud Group: New synthetic methods for natural product synthesis. Radical reactions, Lewis acid catalyzed reactions. |
| Rigby Group: Higher-order cyclization reactions primarily using Chromium catalysts. Examination of nucleophilic carbenes for the use in the total synthesis of natural products. |
| Romo Group: Structure elucidation, total synthesis, and determination of the mode of action of marine natural products that display significant physiological activity. |
| Roush Group: Synthesis of stereochemically complex, biologically active natural products. Design and synthesis of inhibitors of cysteine proteases isolated from tropical parasites. |
| Rychnovsky Group: Natural product synthesis, Prins cyclization, reductive decyanation, chiral auxiliaries for oxocarbenium ion reactions and methods for predicting molar rotations of acetonides. |