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Comparison of the yield, ee, and absolute configuration of hydrobenzoin obtained by AD of stilbene.
| Sharpless AD | Traditional analysis | Chiroptical sensing | ||||
| Entry | Catalyst | T (°C) | Yield (%) | Ee (%) and abs. config. | Yield (%) | Ee (%) and abs. config. |
| 1 | AD-mix-β | 0.0 | 99.1 | 99.1 (R,R) | 95.4 | 98.9 (R,R) |
| 2 | AD-mix-β | 25.0 | 71.0 | 86.3 (R,R) | 65.3 | 87.7 (R,R) |
| 3 | AD-mix-β | 50.0 | 17.7 | 75.4 (R,R) | 12.2 | 75.8 (R,R) |
| 4 | Cinchonine | 25.0 | 54.2 | 0.0 (n/a) | 51.1 | 1.3 (n/a) |
