中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-羟基戊酸 | 4-hydroxyvaleric acid | 13532-37-1 | C5H10O3 | 118.133 |
乙酰丙酸甲酯 | Levulinic acid methyl ester | 624-45-3 | C6H10O3 | 130.144 |
γ-戊内酯 | 5-methyl-dihydro-furan-2-one | 108-29-2 | C5H8O2 | 100.117 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (S)-(+)-γ-Hydroxy-γ-methylbutyrate | 111043-98-2 | C6H12O3 | 132.159 |
—— | methyl ester of (R)-4-hydroxyvaleric acid | 111043-99-3 | C6H12O3 | 132.159 |
γ-戊内酯 | 5-methyl-dihydro-furan-2-one | 108-29-2 | C5H8O2 | 100.117 |
(R)-5-甲基二氢呋喃-2-酮 | (R)-5-methyl-2-oxotetrahydrofuran | 58917-25-2 | C5H8O2 | 100.117 |
—— | (S)-γ-valerolactone | 19041-15-7 | C5H8O2 | 100.117 |
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.
4-芳基-4-氧代酯在室温下与甲醇中的NaBH4发生反应,可以轻易地同时还原其酮基和酯基,生成相应的1-芳基-1,4-丁二醇,而4-烷基-4-氧代酯则通过选择性地还原酮基部分,得到相应的1,4-丁内酯。本文详细描述了这一反应的全面和系统性的研究结果。