| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 3,4-吡咯二羧酸二乙酯 | diethyl pyrrole-3,4-dicarboxylate | 41969-71-5 | C10H13NO4 | 211.218 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 1-fenilpirrolo-3,4-dicarbossilico | 78945-63-8 | C12H9NO4 | 231.208 |
A series of 1-substituted diethyl 1H-pyrrole-3,4-dicarboxylates 4a - o were prepared in 14 - 93% yield by acid-catalysed treatment of diethyl 2,3-bis[(E,E)-(dimethylamino)-methylidene]succinate (2) with various aliphatic and (hetero)aromatic primary amines 3a - o. The configuration of the C=C double bonds in the bis-enaminone 2 was determined by 1H NMR and HMBC spectroscopy.