Table 1 The optimal reaction conditions of piperic acid and carvacrol
From: Natural phenolic derivatives based on piperine scaffold as potential antifungal agents
Entry | Catalytic system | Solvent | Temperature (°C) | Time (h) | Yield (%) |
|---|---|---|---|---|---|
1 | DCC/DMAP | THF | 40 | 6 | 47.47 |
2 | DCC/DMAP | DCM | 40 | 6 | 78.42 |
3 | DCC/DMAP | MeCN | 40 | 6 | 83.40 |
4 | DCC/DMAP | MeCN | 60 | 6 | 68.55 |
5 | DCC/DMAP | MeCN | 90 | 6 | 65.46 |
6 | EDCI/HOBT | MeCN | 40 | 6 | NR |
7 | CDI/DIPEA | MeCN | 40 | 6 | NR |