中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-羟基-6-甲基香豆素 | 4-hydroxy-6-methylcoumarin | 13252-83-0 | C10H8O3 | 176.172 |
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.