Table 3. Large-Scale Syntheses of 3 under Optimized Conditions (Step 1, Scheme 4).
| entry | scale (g) | GCMC IPC (TIC area %) | crude product | purified product (after distillation) | ||||
|---|---|---|---|---|---|---|---|---|
| wt (g) | purity (wt %) | wt (g) | GCMS (TIC area %) | purity (wt %) | yield (%) | |||
| 1 | 65 | 87 | 46.5 | 86.8 | 37 | 95.9 | 95.4 | 72 |
| 2 | 200 | 85 | 153 | 86.0 | 110 | 99.2 | 98.3 | 72 |
| 3 | 400 | 82 | 295 | 85.0 | 220 | 99.7 | 96.0 | 72 |