Skip to Content
Merck
All Photos(1)

Key Documents

407771

Sigma-Aldrich

4-Ethoxy-1,1,1-trifluoro-3-buten-2-one

contains 0.5% BHT as stabilizer, technical grade

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C2H5OCH=CHCOCF3
CAS Number:
Molecular Weight:
168.11
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
form:
liquid

grade

technical grade

Quality Level

form

liquid

contains

0.5% BHT as stabilizer

refractive index

n20/D 1.406 (lit.)

bp

51-53 °C/12 mmHg (lit.)

density

1.18 g/mL at 25 °C (lit.)

functional group

ether
fluoro
ketone

storage temp.

2-8°C

SMILES string

CCO\C=C\C(=O)C(F)(F)F

InChI

1S/C6H7F3O2/c1-2-11-4-3-5(10)6(7,8)9/h3-4H,2H2,1H3/b4-3+

InChI key

YKYIFUROKBDHCY-ONEGZZNKSA-N

General description

4-Ethoxy-1,1,1-trifluoro-3-buten-2-one reacts with phenylmagnesium bromide to afford ethoxy group substitution products, while it reacts with organozinc compounds to yield products arising from 1,2-addition to the carbonyl group. 4-Ethoxy-1,1,1-trifluoro-3-buten-2-one on heating with triethyl phosphite affords [4+2] cycloaddition product, 2,2,2-triethoxy 2,3-dihydro-3-ethoxy-5-trifluoromethyl-1,2λ5-oxaphospholene, which on hydrolysis affords a 2-oxo-2-hydroxy-2, 3-dihydro-3-hydroxy 5-trifluoromethyl-1,2λ5-oxaphospholen. It reacts with amino to give the N-protected amino acids, which is useful for the peptide synthesis.

Application

4-Ethoxy-1,1,1-trifluoro-3-buten-2-one may be used in the synthesis of 4-dialkylamino-1,1,1-trifluorobut-3-ene-2-ones. It may be used for the synthesis of β-alkyl- or dialkylamino substituted enones bearing a CF3 group.

Pictograms

FlameHealth hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Carc. 2 - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

125.6 °F - closed cup

Flash Point(C)

52 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthesis of Trifluoromethylpyrroles and Related Heterocycles from 4-Ethyloxy-1, 1, 1-trifluorobut-3-ene-2-one.
Andrew RJ and Mellor JM.
Tetrahedron, 56(37), 7267-7272 (2000)
The interaction of 4-ethoxy-1, 1, 1-trifluoro-3-buten-2-one with C-nucleophiles-organo-magnesium and-zinc compounds
Gorbunova MG, et al.
Journal of Fluorine Chemistry, 65(1), 25-28 (1993)
Preparation of α, β-unsaturated ketones bearing a trifluoromethyl group and their application in organic synthesis.
Nenajdenko VG, et al.
Molecules (Basel), 2(12), 186-232 (1997)
4-Ethoxy-1, 1, 1-trifluoro-3-buten-2one as a new protecting reagent in peptide synthesis.
Gorbunova MG, et al.
Synthesis, 3, 207-209 (1991)
The interaction of 4-ethoxy-1, 1, 1-trifluoro-3-buten-2-one with triethyl phosphite.
Gerus II, et al.
Journal of Fluorine Chemistry, 90(1), 1-3 (1998)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service