| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 4-(4-甲基苯基)-4-氧代丁酸甲酯 | methyl 4-(4-methylphenyl)-4-oxobutanoate | 57498-54-1 | C12H14O3 | 206.241 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (S)-5-(p-tolyl)dihydrofuran-2(3H)-one | 128994-27-4 | C11H12O2 | 176.215 |
| —— | (R)-5-(p-tolyl)dihydrofuran-2(3H)-one | 126135-41-9 | C11H12O2 | 176.215 |
4-Aryl-4-oxoesters undergo facile reduction of both the keto and the ester groups with methanolic NaBH4 at room temperature to yield the corresponding 1-aryl-1,4-butanediols whereas 4-alkyl-4-oxoesters furnish the corresponding 1,4-butanolides via selective reduction of the keto moiety. Results of a detailed and systematic investigation of the reaction are described.