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226416

Sigma-Aldrich

α-Methylene-γ-butyrolactone

97%

Sinónimos:

alpha-Methylene-gamma-butyrolactone, 3-Methylenedihydro-2(3H)-furanone, Tulipane

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About This Item

Fórmula empírica (notación de Hill):
C5H6O2
Número de CAS:
547-65-9
Peso molecular:
98.10
Beilstein/REAXYS Number:
107939
MDL number:
MFCD00005407
UNSPSC Code:
12352100
PubChem Substance ID:
24853566
NACRES:
NA.22

Quality Level

200

assay

97%

form

liquid

contains

~2% 2,6-di-tert-butyl-p-cresol as stabilizer

refractive index

n20/D 1.472 (lit.)

bp

86-88 °C/12 mmHg (lit.)

solubility

water: soluble(lit.)

density

1.119 g/mL at 25 °C (lit.)

functional group

ester

storage temp.

2-8°C

SMILES string

C=C1CCOC1=O

InChI

1S/C5H6O2/c1-4-2-3-7-5(4)6/h1-3H2

InChI key

GSLDEZOOOSBFGP-UHFFFAOYSA-N

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Application

α-Methylene-γ-butyrolactone (Tulipane) was used to develop optically active spiro-[butyrolactone-pyrrolidine] via Cu(I)-catalyzed exo-selective 1,3-dipolar cycloaddition of azomethine ylides.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

Aquatic Chronic 3 - Flam. Liq. 3 - Skin Sens. 1

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

98.6 °F - closed cup

flash_point_c

37 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
BCCK6710
BCCH7873
BCCG7008
BCCC9019
BCBZ5322

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Qing-Hua Li et al.
Chemical communications (Cambridge, England), 49(83), 9642-9644 (2013-09-12)
An expedient access to optically active spiro-[butyrolactone-pyrrolidine] was successfully developed via an unprecedented Cu(I)-catalyzed exo-selective 1,3-DC of azomethine ylides with α-methylene-γ-butyrolactone, which exhibited high diastereoselectivity (>98 : 2), excellent enantioselectivity (96->99% ee) and a broad substrate scope under mild conditions.
Sébastien Fuchs et al.
Photochemistry and photobiology, 86(3), 545-552 (2010-02-02)
(+) and (-) alpha-methylene-hexahydrobenzofuranone derivatives with a stereochemically pure cis ring junction were used as models of sesquiterpene lactones to study their photoreactivity toward thymidine. After 313 nm irradiation of a deoxygenated acetone solution of lactone models and thymidine, six
Francesca Cateni et al.
European journal of medicinal chemistry, 41(2), 192-200 (2005-12-22)
The synthesis of a series of alpha-methylene-gamma-butyrolactones (compounds 4a, 4b, 6-12, 16, 17) and alpha,beta-unsaturated-delta-lactones (compounds 19-23, 25, 26) starting from 4,4-dimethyldihydrofuran-2,3-dione (1) has been described. Their chemical structures were assigned by spectroscopic evidence. These new compounds exhibited significantly different
YuZhe Gao et al.
Organic & biomolecular chemistry, 10(20), 3991-3998 (2012-04-25)
A zinc or indium-mediated Barbier-type allylation of aldehydes with 3-bromomethyl-5H-furan-2-one in aqueous solvents was developed to provide an efficient route to α-methylene-γ-butyrolactone, which is synthetically very useful. The desired products were obtained in moderate to high yields in aqueous solvents.
E Rozas-Muñoz et al.
Actas dermo-sifiliograficas, 103(6), 456-477 (2012-01-06)
Allergic contact dermatitis due to plants is common. Potentially allergenic plants and plant products are found in many everyday environments, such as the home, the garden, the workplace, and recreational settings. By improving our knowledge of allergenic plant-derived chemical compounds
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