Sr. no | Chemical structure | Rf value | (%) Yielda | M.P |
---|
5 |
| 0.83 | 75.8 | 231–232 |
7 | | 0.79 | 76.7 | 245–246 |
9 | | 0.85 | 71,9 | 231–232 |
11 |
| 0.78 | 68.5 | 245–246 |
13 |
| 0.86 | 72.5 | 276–277 |
15 |
| 0.81 | 77.2 | 189–190 |
17a |
| 0.83 | 73.8 | 210–211 |
17b |
| 0.85 | 69.3 | 230–231 |
17c |
| 0.79 | 71.9 | 192–193 |
- aTLC mobile phase: hexane:toluene:ethyl acetate (1:1:1)