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
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)
W A Kinney et al.
Journal of medicinal chemistry, 35(25), 4720-4726 (1992-12-21)
In this report, a novel bioisostere of the alpha-amino acid, 3,4-diamino-3-cyclobutene-1,2-dione, has been incorporated into a series of compounds which are NMDA antagonists. These compounds, which are achiral and easily prepared, demonstrated good affinity at the NMDA receptor by their
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
Organic Syntheses, 69, 220-220 (1990)
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