| 货号 | 包装规格 | 操作 |
|---|---|---|
| 494992-1G | 1 g | |
| 494992-5G | 5 g |
Ethyl 2,3-butadienoate is an α-allenic ester. The reaction of ethyl 2,3-butadienoate with N-tosylated imines in the presence of DABCO (1,4-diazabicyclo[2.2.2]octane) or DMAP (4-dimethylaminopyridine) forms azetidine derivatives or novel dihydropyridine derivatives respectively. The performance of bifunctional N-acyl aminophosphines to catalyze the asymmetric [3+2] cycloaddition of phenylidenemalononitrile with ethyl 2,3-butadienoate has been evaluated.
Ethyl 2,3-butadienoate may be used in the synthesis of dihydropyrans by reacting with acyclic enones. It may also be used to synthesize spiranic heterocycles by reacting with heterocyclic bis-arylidene ketones via phosphine-catalyzed [3+2] annulations.
| 英文名称 | Ethyl 2,3-butadienoate |
| CAS 号 | 14369-81-4 |
| 线性分子式 | H2 C =C= CHCO 2C 2 H5碳酸二乙酯 |
| 经验分子式 | C6H8O2 |
| 分子量 | 112.13 |
| NACRES | NA.22 |
| UNSPSC | 12352100 |
| MDL 号 | MFCD01863567 |
| InChI | 1S/C6H8O2/c1-3-5-6(7)8-4-2/h5H,1,4H2,2H3 |
| SMILES字符串 | [H]C([H])=C=C([H])C(=O)OCC |
| InChI key | GLSUOACRAMLJIW-UHFFFAOYSA-N |
| 含量测定 | 95% |
| 折射率 | n20/D 1.46（lit.） |
| 沸点 | 80 °C/60 mmHg（点燃） |
| 密度 | 在25 ℃下为0.966 g/mL（文献值） |
| 官能团 | 酯 |
| 质量等级 | 100 |
| 包装规格（货号 494992-1G） | 1 g |
| 包装规格（货号 494992-5G） | 5 g |
![Sigma-Aldrich 5-Methyl-4-oxo-N-o-tolyl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxamide](/img/sigma/115257-1.webp)
![Sigma-Aldrich 2-(2-Methyl-1H-benzo[d]imidazol-1-yl)acetic acid hydrochloride](/img/sigma/115252-1.webp)