Entry | R | Product | Yield (%)a |
|---|
1 | 4-ClPh, 3b | 4b [62] | 93 |
2 | 3-ClPh, 3c | 4c [62] | 81 |
3 | 4-BrPh, 3d | 4d [62] | 81 |
4 | 4-NO2Ph, 3e | 4e [62] | 94 |
5 | 4-CNPh, 3f | 4f [63] | 94 |
6 | 4-PhPh, 3 g | 4g [64] | 67 |
7 | Ph, 3 h | 4 h [62] | 75 |
8 | 1-Naphthyl, 3i | 4i [62] | 70 |
9b | 3-NO2Ph, 3a |
4a
| < 5 |
- aYields determined by 1H-NMR spectroscopy
- bReaction performed in the absence of catalyst
