丁二烯酸
丁二烯酸是一種有機化合物,化學式為C4H4O2。它可由3-丁炔酸和18%碳酸鉀溶液於40 °C反應,再酸化後製得。[1]它和碘化鈉在乙酸中反應,可以得到3-碘-3-丁烯酸。[2]它和環戊二烯於乙醚中反應,可以得到3-亞甲基雙環[2.2.1]辛-5-烯-2-甲酸,內型(endo)與外型(exo)異構體之比為68:32。[3]
丁二烯酸 | |
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識別 | |
CAS號 | 5732-10-5 |
SMILES |
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性質 | |
化學式 | C4H4O2 |
摩爾質量 | 84.07 g·mol−1 |
熔點 | 65-66 °C[1] |
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。 |
參考文獻
編輯- ^ 1.0 1.1 G. Eglinton, E. R. H. Jones, G. H. Mansfield and M. C. Whiting. Researches on acetylenic compounds. Part XLV. The alkaline isomerisation of but-3-ynoic acid. J. Chem. Soc., 1954, 3197-3200. doi:10.1039/JR9540003197.
- ^ Shengming Ma, Zhangjie Shi, and Lintao Li. Efficient Synthesis of 4-Halo-4-penten-2-ones and 3-Halo-3-butenoic Acids/Esters via Hydrohalogenation Reaction of 3,4-Pentadien-2-one and 2,3-Butadienoic Acid/Methyl Ester. J. Org. Chem. 1998, 63, 13, 4522–4523. doi:10.1021/jo980129f.
- ^ Z. M. Ismail and H. M. R. Hoffmann. Endo selectivity of allenic esters in Diels-Alder additions to cyclopentadiene. The effect of added aluminum trichloride and an approach to dehydrosantalene analogs. J. Org. Chem. 1981, 46, 17, 3549–3550. doi:10.1021/jo00330a036.