中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-叔丁基-2-羟基苯甲醛 | 2-hydroxy-5-t-butylbenzaldehyde | 2725-53-3 | C11H14O2 | 178.231 |
An efficient metal-free and cost-effective method for the synthesis of coumarin and butenolide 4-sulfonates has been developed involving addition of sulfonic acids to ethyl propiolates followed by lactonization.