As part of our continuing interest in the design of phosphole-based ligands for application in catalysis, 7 we report an efficient synthetic method for the preparation of a new family of non-symmetrical disubstituted dibenzophospholes possessing different steric and electronic properties and their effects in the preliminary evaluation of rhodium-catalyzed hydroformylation reactions. ... 3 equiv of n-BuLi were used. ... Since these dibenzophospholes appeared ...