1. Kinetic resolution of secondary alcohols using proline-derived bicyclic iminium salts
2. Selected spectroscopic data 4: δH 4.39 (1H, m), 3.76 (6H, s), 3.37 (1H, m), 3.10 (2H, m), 2.82 (1H, t, J 11 Hz), 2.20–2.00 (3H, m) and 1.70 (1H, m); δC 167.4 (2×CO), 166.7 (4ry), 90.8 (4ry), 69.2 (CH), 51.6 (2×Me), 49.8 (CH2), 32.8 (CH2), 29.5 (CH2) and 27.3 (CH2). 13: δH 7.35–7.28 (2H, m), 7.25–7.15 (2H, m), 7.09 (1H, m), 4.38 (1H, m), 4.12 (1H, t, J 7 Hz), 3.90 (1H, t, J 7 Hz), 3.57 (1H, m), 3.34 (6H, s), 3.22 (1H, m), 2.30–2.00 (3H, m) and 1.75 (1H, m); δC 167.5 (2×CO), 165.0 (4ry), 142.2 (4ry), 129.1 (2 CH), 124.8 (CH), 121.1 (2 CH), 75.5 (4ry), 59.4 (CH), 56.2 (CH2), 50.5 (2×Me), 48.4 (CH2), 31.6 (CH2) and 26.7 (CH2).
3. Asymmetric synthesis based on chiral diamines having pyrrolidine ring
4. Static and Dynamic Stereochemistry of Push-Pull and Strained Ethylenes