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407771

Sigma-Aldrich

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

contains 0.5% BHT as stabilizer, technical grade

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About This Item

Linear Formula:
C2H5OCH=CHCOCF3
CAS Number:
17129-06-5
Molecular Weight:
168.11
MDL number:
MFCD00192131
UNSPSC Code:
12352100
PubChem Substance ID:
24865486
NACRES:
NA.22

grade

technical grade

Quality Level

200

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.)

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
GHS02,GHS08

Signal Word

Warning

Hazard Statements

H226,H351,H412

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

407771-5G:
407771-1G:
407771-VAR:
407771-BULK:

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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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)
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 C-nucleophiles-organo-magnesium and-zinc compounds
Gorbunova MG, et al.
Journal of Fluorine Chemistry, 65(1), 25-28 (1993)
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)

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