Synthesis of Binam‐P Derived C2‐Symmetric bis‐Iminophosphonamide Ligands. Molecular Structure of [(R)‐Binam(Ph2PN(H)tBu)2]

The Staudinger reaction of organic azides tBuN3, 1‐Ad‐N3, and DippN3 (Dipp = 2,6‐diisopropylphenyl) with (R)‐N,N′‐bis(diphenylphosphanyl)‐2,2′‐diamino‐1,1′‐binaphthyl [(R)‐Binam‐P], obtained by an optimized procedure from (R)‐(+)‐Binam, Ph2PCl, and Et3N in DCM, leads to preparation of a series of new C2‐symmetric bis‐iminophosphonamide ligands [(R)‐Binam(Ph2PN(H)R)2] [R = tBu (1), Ad (2), and Dipp (3)]. The molecular structure of 1·2DMSO was confirmed by X‐ray structure analysis.