Compound No. | R | Chemical shift (δ, ppm) | % Yield |
3a | Pyrazolo[1,5-a]pyrimidine | 7.91 | 94 |
3b | 2-Methoxyphenol | 7.69 | 92 |
3c | 4-Formylbenzene | 8.00 | 90 |
3d | 4-Fluorobenzene | 7.81 | 85 |
3e | N,N-Dimethylaminopyrimidine | 7.61 | 81 |
3f | N-Morpholinepyrimidine | 7.64 | 88 |
3g | Isopropylpyrimidine | 7.62 | 86 |