Modular Synthesis of Novel Chiral Phosphorous Triamides Based on (<i>S</i>)-<i>N</i>-(Pyrrolidin-2-ylmethyl)aniline and Their Application in Asymmetric Catalysis
set of new P-chiral phosphorous triamides (PTAs) based on the (S)-N-(pyrrolidin-2-ylmethyl)aniline backbone was prepared by modular synthetic procedures. The chirality at phosphorus can be controlled to a large extent by the syntheticroute, and high diastereomeric purities were achieved for most of the reported ligands. This ligand family was evaluated in the copper-catalysed Michael addition of diethylzinc