所有图片(1)
别名:
四方酸二乙酯, 方酸二乙酯
线性分子式:
(C2H5O)2C4(=O)2
CAS号:
分子量:
170.16
Beilstein:
640626
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22
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质量水平
检测方案
98%
形式
liquid
折射率
n20/D 1.509 (lit.)
bp
95 °C/0.1 mmHg (lit.)
密度
1.15 g/mL at 25 °C (lit.)
SMILES字符串
CCOC1=C(OCC)C(=O)C1=O
InChI
1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
InChI key
DFSFLZCLKYZYRD-UHFFFAOYSA-N
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一般描述
3,4-二乙氧基-3-环丁烯-1,2-二酮（方酸二乙酯）与糖胺（通过还原低聚糖形成）的反应已被研究。所形成的衍生物与氨基官能化的脂质、固体或蛋白相连。
应用
3,4-二乙氧基-3-环丁烯-1,2-二酮可用作合成呋喃酮和醌的起始材料。它会经过胺和不饱和有机硅烷的乙氧基取代。
警示用语：
Danger
危险分类
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
靶器官
Respiratory system
WGK
WGK 3
闪点(°F)
230.0 °F
闪点(°C)
110 °C
个人防护装备
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
O Blixt et al.
Carbohydrate research, 319(1-4), 80-91 (1999-10-16)
Reducing oligosaccharides were converted into their corresponding glycosylamines, and these were reacted with 3,4-diethoxy-3-cyclobuten-1,2-dione (squaric acid diethyl ester). The resulting derivatives could be linked to amino-functionalized lipids, solids, or proteins. Treatment of the obtained lipid or solid conjugates with aqueous
The Journal of Organic Chemistry, 59, 4707-4707 (1994)
Organic Syntheses, 69, 220-220 (1990)
Journal of the Chemical Society. Perkin Transactions 1, 263-263 (1993)
Frederik Wurm et al.
Biomacromolecules, 13(4), 1161-1171 (2012-03-02)
Polymer-protein conjugates generated from side chain functional synthetic polymers are attractive because they can be easily further modified with, for example, labeling groups or targeting ligands. The residue specific modification of proteins with side chain functional synthetic polymers using the
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