Fig. 1. Molecular structure of 2a. Anisotropic displacement ellipsoids set at 50% probability. Hydrogen atoms have been omitted for clarity. Atoms of the Dipp and Mes groups are pictured as spheres of arbitrary radius. Selected interatomic distances [Å] and angles [°]: P1–C1 1.670(2), C1–O1 1.155(3), C2–P1 1.870(2), C2–B1 1.580(2), C2–N1 1.270(2); P1–C1–O1 173.6(2), C2–P1–C1 96.67(9), B1–C2–P1 122.97(12), B1–C2–N1 120.34(15), P1–C2–N1 116.66(13).
