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RCM of prochiral triene 18.
 |
| Catalyst | ee (%) | Conv. (%) | Ref. |
|---|---|---|---|
| 19-antiGII a | 82 | >98 | [53] |
| 19-antiGII b | 48 | >98 | [53] |
| 15a-antiGII a | 35 | >98 | [51] |
| 15b-antiGII b | 90 | >98 | [51] |
| 17a-antiGII a | 46 | >98 | [51] |
| 17b-antiGII b | 90 | >98 | [51] |
a Catalyst 2 mol %, CH2Cl2 (0.055 M), 40 °C; b Catalyst 4 mol % with NaI as the additive, THF, 40 °C.
