| Larock Group: Organopalladium and polymer research. |
| Lautens Group: Organic synthesis. Asymmetric catalysis. Organometallic chemistry. |
| Lectka Group: Development of new asymmetric reactions and chiral catalysts. |
| Leigh Group: Mechanistic organic photochemistry, organosilicon photochemistry. |
| Leighton Group: Development of stereoselective catalytic carbonylation reactions - a new and highly effective synthesis of aldols and aldol-derived structures. Total synthesis of macrolide antibiotics and polyol-derived natural products. |
| Ley Group: Combinatorial chemistry and the total synthesis of complex natural products. |
| Linclau Group: Total synthesis, carbohydrate and fluorine chemistry, development of solid-supported reagents and novel synthetic methodology. |
| Lipshutz Group: Organometallic chemistry, AIDS-related research, Vancomycin biaryl, new BINOLs, NOBINs, and BINAPs and cyclopeptide Alkaloids. |
| List Group: Organocatalysis. Total synthesis. New synthetic methods. Bioorganic chemistry |
| Little Group: Synthesis of bioactive and other structurally interesting materials. |
| Lloyd-Jones Group: Investigation of novel organic and organometallic structures and their application to organic synthesis - most usually C-C bond-forming processes. Isotopic labelling, stereodynamics, advanced NMR techniques, kinetics and, in collaboration, high level computational analysis of structure and reactivity. |
| Lobo-Prabhakar Group: Chemistry of natural products. Chemical carcinogenesis. Mechanisms of biologically important reactions. Synthesis of farmacologically active compounds. Hemisynthesis. Computational organic chemistry. Development of new synthetic methods and reagents for organic synthesis. |
| Lubell Group: Peptide mimicry. Combinatorial chemistry. Biologically active peptides. Amino acids ligands for neuroscience. Solid-phase chemistry. |