Reactions of 3-Formylchromones with amides in alcohols (20 mL) at 30–40 °C over a period of 12 h.
| Entry | 1 | Amide (eq.) | Alcohol | Product | Yield (%) |
|---|---|---|---|---|---|
| 1 | 6-Cl | Acetamide (1) | MeOH | 5a | 81 |
| 2 | 6-Cl | Acetamide (5) | MeOH | 5a | 80 |
| 3 | 6-Cl | Acetamide (5) | MeOH | 5a | 82 |
| 4 | 6-Cl | Formamide | MeOH | 5a | 86 |
| 5 | 6-Cl | Benzamide | MeOH | 5a | 71 |
| 6 | H | Acetamide | 1-Propanol | 5b | 72 |
| 7 | H | Formamide | 1-Propanol | 5b | 76 |
| 8 | 6-Cl | — | MeOH | 5a | 80 |