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283754

Sigma-Aldrich

2(5H)-Furanone

98%

Synonym(s):

γ-Crotonolactone, 2-Buten-1,4-olide

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About This Item

Empirical Formula (Hill Notation):
C4H4O2
CAS Number:
Molecular Weight:
84.07
Beilstein:
383585
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

form

liquid

refractive index

n20/D 1.469 (lit.)

bp

86-87 °C/12 mmHg (lit.)

mp

4-5 °C (lit.)

density

1.185 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

O=C1OCC=C1

InChI

1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2

InChI key

VIHAEDVKXSOUAT-UHFFFAOYSA-N

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General description

Chiral urea compounds catalyzed hetero-Michael addition reaction of 2(5H)-furanone (γ-crotonolactone) to pyrrolidine. The quorum sensing inhibition activity by 2(5H)-furanone was studied using bioindicator strains.

Application

2(5H)-Furanone (γ-Crotonolactone) has been used in:
  • synthesis of (+)-L-733,060, (+)-CP-99,994 and (2S,3R)-3-hydroxypipecolic acid
  • synthesis of 5-substituted 2(5H) furanones (γ-butenolides) via direct aldol reaction with aromatic aldehydes catalyzed by bifunctional aminothiourea and aminosquaramide organocatalysts
  • Michael addition reactions for synthesis of lignans
  • three-component Michael-Aldol reactions with an aldehyde anda thiolate or carbanion

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

213.8 °F - closed cup

Flash Point(C)

101 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Tetrahedron, 49, 8073-8073 (1993)
Tetrahedron, 49, 9039-9039 (1993)
Tetrahedron, 49, 4173-4173 (1993)
Yoshihiro Sohtome et al.
Chemical & pharmaceutical bulletin, 52(4), 477-480 (2004-04-02)
Chiral urea compounds 10a-g were synthesized as catalysts for conjugate addition of pyrrolidine (2) to gamma-crotonolactone (3). In the presence of a catalytic amount of the chiral ureas, this hetero-Michael reaction was greatly accelerated. Asymmetric induction was observed with the
Yongwei Wu et al.
Journal of the American Chemical Society, 133(32), 12458-12461 (2011-07-20)
An unprecedented enantioselective and general olefin isomerization was realized via biomimetic proton transfer catalysis with a new chiral organic catalyst. A broad range of mono- and disubstituted β,γ-unsaturated butenolides were transformed into the corresponding chiral α,β-unsaturated butenolides in high enantioselectivity

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