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:
Assay:
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%
Quality Level
bp
71-73 °C/29 mmHg (lit.)
mp
−43.5 °C (lit.)
density
1.056 g/mL at 25 °C (lit.)
functional group
ester
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。
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 。
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
Y Hori et al.
International journal of biological macromolecules, 25(1-3), 237-245 (1999-07-23)
The mechanism of the ring-opening polymerisation of beta-butyrolactones was studied. The ring-opening polymerisation of BL catatlysed by distannoxane complexes is of a living nature. The polymerisation of racemic BL gave a predominantly syndiotactic P(3HB). The temperature effect on syndiospecificity was
Valentin Poirier et al.
Dalton transactions (Cambridge, England : 2003), (44)(44), 9820-9827 (2009-11-04)
A new heteroleptic ethyl-zinc complex stabilized by a chelating bis(morpholinomethyl)phenoxy ligand has been synthesised and shown to be a highly potent initiator for the immortal ring-opening polymerisation (ROP) of lactide and beta-butyrolactone, being able to convert up to 50,000 equiv.
Noureddine Ajellal et al.
Dalton transactions (Cambridge, England : 2003), 39(36), 8363-8376 (2010-04-29)
This Perspective article summarizes efforts paid in our group to develop efficient metal-based catalysts for the immortal ring-opening polymerization (iROP) of cyclic esters in the presence of large amounts of alcohols (ROH) as chain transfer agents. The catalyst systems reviewed
Z Jedliński et al.
International journal of biological macromolecules, 25(1-3), 247-253 (1999-07-23)
Novel feasibility of fuctionalized poly(3-hydroxybutanoic acid), PHB, and its copolymers synthesis via ring-opening of beta-butyrolactone (ROP) mediated by activated anionic initiators or enzymes in vitro is presented. Using these new synthetic approaches, PHB with defined chemical structure of the end
Stereoelective Polymerization of β-butyrolactone.
Le Borgne A and Spassky A.
Polymer, 30(12), 2312-2319 (1989)
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