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
质量水平
方案
98%
折射率
n20/D 1.411 (lit.)
沸点
71-73 °C/29 mmHg (lit.)
mp
−43.5 °C (lit.)
密度
1.056 g/mL at 25 °C (lit.)
官能团
ester
SMILES字符串
CC1CC(=O)O1
InChI
1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3
InChI key
GSCLMSFRWBPUSK-UHFFFAOYSA-N
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一般描述
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。
应用
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 。
警示用语：
Warning
危险分类
Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2
储存分类代码
3 - Flammable liquids
WGK
WGK 3
闪点(°F)
140.0 °F - closed cup
闪点(°C)
60 °C - closed cup
个人防护装备
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
危险化学品
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)
Tatyana V Mahrova et al.
Inorganic chemistry, 48(9), 4258-4266 (2009-04-28)
A series of new yttrium complexes supported by the bulky enediamido dianionic ligand DAB(2-) (DAB(2-) = (2,6-C(6)H(3)iPr(2))NC(Me)=C(Me)N(2,6-C(6)H(3)iPr(2))(2-)), that is, {DAB}Y(THF)(2)(mu-Cl)(2)Li(THF)(2) (1), {DAB}Y(OtBu)(THF)(DME) (2), and {{DAB}Y(BH(4))(2)}{Li(DME)(3)} (3), was synthesized by salt metathesis. The complexes were isolated after recrystallization in 73, 66
Pia A Elustondo et al.
PloS one, 8(9), e75812-e75812 (2013-10-03)
Poly(3-hydroxybutyrate) (PHB) is a polyester of 3-hydroxybutyric acid (HB) that is ubiquitously present in all organisms. In higher eukaryotes PHB is found in the length of 10 to 100 HB units and can be present in free form as well
Y Suzuki et al.
Biomacromolecules, 2(2), 541-544 (2001-12-26)
Recently, a variety of aliphatic polyesters have been synthesized using hydrolases such as lipases and PHB depolymerases, and the reaction mechanism for these enzyme-catalyzed polymerization has been discussed. In this paper, we have studied the involvement of the catalytic amino
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
Chromatograms
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