Table 9 Independent variables and their levels for D-optimal design of the oxirane ring opening reaction
From: Synthesis and optimization ring opening of monoepoxide linoleic acid using p-toluenesulfonic acid
Independent variables | Variable levels | |||
|---|---|---|---|---|
-1 | 0 | +1 | ||
1. OA/MEOA (mol/mol) | X 1 | 0.2 | 0.4 | 0.6 |
2. PTSA/MEOA (mol/mol) | X 2 | 0.4 | 0.65 | 0.9 |
3. Temperature (°C) | X 3 | 90 | 100 | 110 |
4. Time (h) | X 4 | 3 | 4.5 | 6 |