310778
3,4-二乙氧基-3-环丁烯-1,2-二酮
98%
别名:
四方酸二乙酯, 方酸二乙酯
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关于此项目
线性分子式:
(C2H5O)2C4(=O)2
化学文摘社编号:
分子量:
170.16
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
640626
Assay:
98%
Form:
liquid
InChI
1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
SMILES string
CCOC1=C(OCC)C(=O)C1=O
InChI key
DFSFLZCLKYZYRD-UHFFFAOYSA-N
assay
98%
form
liquid
Quality Level
bp
95 °C/0.1 mmHg (lit.)
density
1.15 g/mL at 25 °C (lit.)
functional group
ether, ketone
General description
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。
Application
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。
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
target_organs
Respiratory system
存储类别
10 - Combustible liquids
wgk
WGK 3
flash_point_f
230.0 °F - closed cup
flash_point_c
110 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Organic Syntheses, 69, 220-220 (1990)
Journal of the Chemical Society. Perkin Transactions 1, 263-263 (1993)
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)
Sinthuja Jegatheeswaran et al.
Vaccines, 8(3) (2020-09-23)
The carbohydrate antigen dimeric Lewis X (DimLex), which accumulates in colonic and liver adenocarcinomas, is a valuable target to develop anti-cancer therapeutics. Using the native DimLex antigen as a vaccine would elicit an autoimmune response against the Lex antigen found
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