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The calculated carbonylicity values (CA%) of compounds 17a–d and 18a–b and the carbonylicity changes (ΔCA) for ring-opening alcoholysis depending on the ring size.
| State | n = 1 (a) | n = 2 (a) | n = 3 (a) | n = 4 (a) |
|---|---|---|---|---|
| Start (CA%) 17 | 46.5% | 60.3% | 55.2% | 53.4% |
| Product (CA%) 18 | 56.2% | 56.1% | 56.1% | 56.2% |
| ΔCA | +10.7% | −4.2% | +0.9% | +2.8% |
| Method | A or B | only B | A 1 or B | A or B |
1 Extremely slow reaction.
