B-丁内酯
B-丁内酯结构式
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常用名 | B-丁内酯 | 英文名 | butyrolactone |
|---|---|---|---|---|
| CAS号 | 3068-88-0 | 分子量 | 86.089 | |
| 密度 | 1.1±0.1 g/cm3 | 沸点 | 204.0±0.0 °C at 760 mmHg | |
| 分子式 | C4H6O2 | 熔点 | -43.5ºC(lit.) | |
| MSDS | 中文版 美版 | 闪点 | 98.3±0.0 °C | |
| 符号 |
GHS02, GHS07, GHS08 |
信号词 | Warning |
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Involvement of catalytic amino acid residues in enzyme-catalyzed polymerization for the synthesis of polyesters.
Biomacromolecules 2(2) , 541-4, (2001) 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 o... |
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Ring-opening polymerisation of beta-butyrolactone catalysed by distannoxane complexes: study of the mechanism.
Int. J. Biol. Macromol. 25(1-3) , 237-45, (1999) 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). T... |
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Novel synthesis of functionalized poly(3-hydroxybutanoic acid) and its copolymers.
Int. J. Biol. Macromol. 25(1-3) , 247-53, (1999) 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, PH... |
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Demixing of severely overlapped ¹H NMR resonances and interpretation of anomalous intensity pattern of dipolar coupled A₃ spins in a weakly aligning medium.
J. Magn. Reson. 207(2) , 190-6, (2010) We report a single (13)C spin edited selective proton-proton correlation experiment to decipher overcrowded (13)C coupled proton NMR spectra of weakly dipolar coupled spin systems. The experiment unravels the masked (13)C satellites in proton spectrum and per... |
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Water-soluble L-alanine and related oligopeptide conjugates with poly[(R,S)-3-hydroxybutanoic acid] oligomers, synthesis and structural studies by means of electrospray ionization multistage mass spectrometry.
J. Biomater. Sci. Polym. Ed. 12(3) , 297-305, (2001) The reactions of (R,S) beta-butyrolactone with L-alanine and related oligopeptides (Ala-Ala-Ala) were investigated. The resulting water-soluble oligomers were composed of poly[(R,S)-3-hydroxybutanoic acid] (a-PHB) covalently conjugated to L-alanine and Ala-Al... |
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Highly controlled immortal polymerization of β-butyrolactone by a dinuclear indium catalyst.
Chem. Commun. (Camb.) 48(54) , 6806-8, (2012) An ethoxy-bridged dinuclear indium catalyst was used for the ring opening polymerization of the cyclic ester β-butyrolactone to form the biodegradable polyester poly(hydroxybutyrate) (PHB). The catalyst shows remarkable activity and control during polymerizat... |
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Polyhydroxybutyrate targets mammalian mitochondria and increases permeability of plasmalemmal and mitochondrial membranes.
PLoS ONE 8(9) , e75812, (2013) 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 as in association with prot... |
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Synthesis of beta-lactones by the regioselective, cobalt and Lewis acid catalyzed carbonylation of simple and functionalized epoxides.
J. Org. Chem. 66(16) , 5424-6, (2001) 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... |
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beta-Butyrolactone.
IARC Monogr. Eval. Carcinog. Risks Hum. 71 Pt 3 , 1317-8, (1999)
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Yttrium complexes supported by linked bis(amide) ligand: synthesis, structure, and catalytic activity in the ring-opening polymerization of cyclic esters.
Inorg. Chem. 48(9) , 4258-66, (2009) 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))... |