(11aR)-1,11-Bis(diphenylphosphino)dibenzo[d,f][1,3]dioxepine is primarily used as a chiral ligand in asymmetric catalysis. Its unique structure and stereochemistry make it highly effective in facilitating enantioselective reactions, particularly in the synthesis of complex organic molecules. This compound is often employed in transition metal-catalyzed processes, such as hydrogenation, cross-coupling, and hydroformylation reactions, where it helps control the stereochemistry of the final product. Its application is particularly valuable in the pharmaceutical industry for the production of chiral drugs, where achieving high enantiomeric purity is critical. Additionally, it is utilized in academic research to develop new catalytic methodologies and explore novel synthetic pathways.