中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-羟基-6-(2-甲基-2-丙基)-2H-苯并吡喃-2-酮 | 6-tertiarybutyl-4-hydroxycoumarin | 186255-65-2 | C13H14O3 | 218.252 |
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.