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Merck
CN

66735

α-Methylene-γ-butyrolactone

purum, ≥97.0% (GC)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C5H6O2
CAS Number:
547-65-9
Molecular Weight:
98.10
PubChem Substance ID:
24884906
UNSPSC Code:
12352100
Beilstein/REAXYS Number:
107939
MDL number:
MFCD00005407

Key Documents

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SMILES string

C=C1CCOC1=O

InChI

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

InChI key

GSLDEZOOOSBFGP-UHFFFAOYSA-N

grade

purum

assay

≥97.0% (GC)

contains

~1% 2,6-di-tert-butyl-4-methylphenol as stabilizer

bp

86-88 °C/12 mmHg (lit.)

density

1.119 g/mL at 25 °C (lit.)

storage temp.

2-8°C

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Application

Very reactive Michael-acceptor; the α-methylene-γ-butyrolactone ring system exists in many natural products of biological interest

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

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

Storage Class

3 - Flammable liquids

flash_point_f

98.6 °F - closed cup

flash_point_c

37 °C - closed cup

ppe

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

Regulatory Information

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Jean-Pierre Lepoittevin et al.
Chemical record (New York, N.Y.), 9(5), 258-270 (2009-11-26)
Natural products containing an alpha-methylene-gamma-butyrolactone moiety, mainly of the sesquiterpene type, are widely observed in plants, which upon coming into contact with skin, will induce major skin toxicological side effects or phytodermatitis. Indeed two main dermatological pathologies have been associated
Javier A Menendez et al.
Drug news & perspectives, 18(6), 375-385 (2005-10-26)
Fatty acid synthase (FAS)-catalyzed de novo fatty acid biosynthesis, an anabolic energy-storage pathway largely considered of minor importance in humans, actively contributes to the cancer phenotype by virtue of its ability to specifically regulate the expression and activity of Her-2/neu
Taiji Nomura et al.
Plant physiology, 159(2), 565-578 (2012-04-05)
Tuliposides, the glucose esters of 4-hydroxy-2-methylenebutanoate and 3,4-dihydroxy-2-methylenebutanoate, are major secondary metabolites in tulip (Tulipa gesneriana). Their lactonized aglycons, tulipalins, function as defensive chemicals due to their biological activities. We recently found that tuliposide-converting enzyme (TCE) purified from tulip bulbs
Fernando Torres et al.
Cancer letters, 269(1), 139-147 (2008-06-03)
In this study, we investigated the effect of three synthetic alpha-methylene-gamma-butyrolactones (MBL) on viability of 10 human tumor cell lines and found that these lactones were highly cytotoxic against leukemia cells. Studies performed on HL-60 cells indicate that MBL induce
David M Hodgson et al.
Organic letters, 13(10), 2594-2597 (2011-04-15)
Zinc or a chromium(II) source with 3-(bromomethyl)furan-2(5H)-one (3) and an aldehyde gives β-(hydroxymethylaryl/alkyl)-α-methylene-γ-butyrolactones 5 in good yields and high diastereoselectivities. The methodology is demonstrated in concise syntheses of (±)-hydroxymatairesinol (8) and (±)-methylenolactocin (10) by subsequent arylboronate conjugate addition and translactonization
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