494992

2,3-丁二烯酸乙酯

95%

• 别名: (Ethoxycarbonyl)allene, Ethyl allenecarboxylate, Ethyl butadienoate
• 线性分子式: H₂C=C=CHCO₂C₂H₅
• CAS号: 14369-81-4
• 分子量: 112.13
• MDL號碼: MFCD01863567
• 分類程式碼代碼: 12352100
• PubChem物質ID: 24872940
• NACRES: NA.22

属性

• 化驗: 95%
• 折射率: n20/D 1.46 (lit.)
• bp: 80 °C/60 mmHg (lit.)
• 密度: 0.966 g/mL at 25 °C (lit.)
• SMILES 字串: [H]C([H])=C=C([H])C(=O)OCC
• InChI: 1S/C6H8O2/c1-3-5-6(7)8-4-2/h5H,1,4H2,2H3
• InChI 密鑰: GLSUOACRAMLJIW-UHFFFAOYSA-N

说明

一般說明

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.

應用

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.

安全信息

• 象形圖: GHS02
• 訊號詞: Warning
• 危險聲明: H226
• 防範說明: P210 - P233 - P240 - P241 - P242 - P243
• 危險分類: Flam. Liq. 3
• 儲存類別代碼: 3 - Flammable liquids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: 116.6 °F - closed cup
• 閃點（°C）: 47 °C - closed cup
• 個人防護裝備: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter