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Variations of the catalyst loading. 
| Entry | 1 a(mol %) | Ag2O (mol %) | t[h] | Yield[a] [%] | d.r.[b] | e.r.[c] |
|---|---|---|---|---|---|---|
| 1 | 5 | 2.5 | 72 | 84 | 94:6 | 94:6 |
| 2 | 5 | 1.25 | 96 | 85 | 90:10 | 93:7 |
| 3 | 1 | 0.25 | 96 | 73 | 86:14 | 90:10 |
Combined yield of both diastereomers after flash column chromatography.
Given as the trans/cis ratios and determined by 1HNMR analysis of the crude reaction mixture.
Determined by HPLC analysis on a chiral stationary phase.
