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
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
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.
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
Variably isotactic poly(hydroxybutyrate) from racemic beta-butyrolactone: microstructure control by achiral chromium(III) salophen complexes.
Manuela Zintl et al.
Angewandte Chemie (International ed. in English), 47(18), 3458-3460 (2008-04-05)
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