219126
β-丁内酯
98%
别名:
β-甲基-β-丙内酯, 3-羟基丁酸 β-内酯, 4-甲基-β-丙酰内酯
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关于此项目
经验公式（希尔记法）:
C4H6O2
化学文摘社编号:
分子量:
86.09
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
221-330-3
MDL number:
产品名称
β-丁内酯, 98%
InChI key
GSCLMSFRWBPUSK-UHFFFAOYSA-N
InChI
1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3
SMILES string
CC1CC(=O)O1
assay
98%
refractive index
n20/D 1.411 (lit.)
bp
71-73 °C/29 mmHg (lit.)
mp
−43.5 °C (lit.)
density
1.056 g/mL at 25 °C (lit.)
functional group
ester
Quality Level
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Application
β-丁内酯用于阴离子聚合制备（3-O-\ [olig-（3-羟基丁酸酯）] 荧光素，聚（3-羟基丁酸酯）的荧光素衍生物 。
General description
β-丁内酯在乙氧基桥连双核铟催化剂存在下进行开环聚合，得到可生物降解的聚酯聚羟基丁酸酯。外消旋手性引发剂存在下的β-丁内酯聚合已有报道。它是有机合成的通用构件。
signalword
Warning
hcodes
Hazard Classifications
Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2
存储类别
3 - Flammable liquids
wgk
WGK 3
flash_point_f
140.0 °F - closed cup
flash_point_c
60 °C - closed cup
ppe
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
Highly active, productive, and syndiospecific yttrium initiators for the polymerization of racemic beta-butyrolactone.
Abderramane Amgoune et al.
Angewandte Chemie (International ed. in English), 45(17), 2782-2784 (2006-03-21)
K Hemminki
Chemico-biological interactions, 34(3), 323-331 (1981-03-15)
Reactivity of beta-propiolactone, beta-butyrolactone and gamma-butyrolactone with guanosine, RNA, DNA and 4-(p-nitrobenzyl)pyridine was studied. beta-Propiolactone was 50--100 times more reactive with all the nucleophiles than beta-butyrolactone whereas gamma-butyrolactone was completely inactive. The rate of alkylation by the lactones was guanosine
Stereoelective Polymerization of β-butyrolactone.
Le Borgne A and Spassky A.
Polymer, 30(12), 2312-2319 (1989)
Lee R Rieth et al.
Journal of the American Chemical Society, 124(51), 15239-15248 (2002-12-19)
Polymerization of beta-butyrolactone (BBL) and beta-valerolactone (BVL) using the zinc alkoxide initiator (BDI-1)ZnO(i)()Pr [(BDI-1) = 2-((2,6-diisopropylphenyl)amido)-4-((2,6-diisopropylphenyl)imino)-2-pentene] proceeds very rapidly under mild conditions to produce poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxyvalerate) (PHV), respectively. For the monomer-to-initiator ratio 200:1, PHB number-average molecular weights (M(n))
J T Lee et al.
The Journal of organic chemistry, 66(16), 5424-5426 (2001-08-04)
The PPNCo(CO)(4) and BF(3) x Et(2)O catalyzed carbonylation of simple and functionalized epoxides in DME gives the corresponding beta-lactones regioselectively in good to high yields. The carbonylation occurred selectively at the unsubstituted C-O bond of the epoxide ring, and this
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