401455

Sigma-Aldrich

Ethyl 4,4,4-trifluoro-2-butynoate

97%

Linear Formula:
CF3C≡CCO2C2H5
CAS Number:
Molecular Weight:
166.10
Beilstein/REAXYS Number:
3539414
MDL number:
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

assay

97%

refractive index

n20/D 1.350 (lit.)

bp

96-98 °C (lit.)

density

1.162 g/mL at 25 °C (lit.)

SMILES string

CCOC(=O)C#CC(F)(F)F

InChI

1S/C6H5F3O2/c1-2-11-5(10)3-4-6(7,8)9/h2H2,1H3

InChI key

SFDRHPQGYUYYNX-UHFFFAOYSA-N

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General description

Ethyl 4,4,4-trifluoro-2-butynoate is an unsymmetrical internal alkyne.

Application

Ethyl 4,4,4-trifluoro-2-butynoate has been used to investigate the regioselectivity of the insertion reaction with cyclometalated iridium and rhodium complexes.

It may be used in the synthesis of the following compounds :
  • (2S,4aR,6aR,7R,9S,10aS,10bR)-methyl 9-acetoxy-2-(5-(ethoxycarbonyl)-6-(trifluoromethyl)-7-oxabicyclo[2.2.1]hepta-2,5-dien-2-yl)-6a,10b-dimethyl-4,10-dioxododecahydro-1H-benzo[f]isochromene-7-carboxylate
  • (2S,4aR,6aR,7R,9S,10aS,10bR)-methyl 9-acetoxy-2-(6-(ethoxycarbonyl)-5-(trifluoromethyl)-7-oxabicyclo[2.2.1]hepta-2,5-dien-2-yl)-6a,10b-dimethyl-4,10-dioxododecahydro-1Hbenzo[f]isochromene-7-carboxylate

Packaging

500 mg in amber glass bottle

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 3272 3 / PGII

WGK Germany

WGK 3

Flash Point(F)

42.8 °F - closed cup

Flash Point(C)

6 °C - closed cup

Facile access to stereodefined dienoates and cyclopropylenoates containing a trifluoromethyl group.
Wang P-A, et al.
Journal of Fluorine Chemistry, 124(1), 93-97 (2003)
Reactivity and Regioselectivity of Insertion of Unsaturated Molecules into M- C (M= Ir, Rh) Bonds of Cyclometalated Complexes.
Li L, et al.
Organometallics, 29(20), 4593-4605 (2010)
Anthony Lozama et al.
Journal of natural products, 74(4), 718-726 (2011-02-23)
As part of our continuing efforts toward more fully understanding the structure-activity relationships of the neoclerodane diterpene salvinorin A, we report the synthesis and biological characterization of unique cycloadducts through [4+2] Diels-Alder cycloaddition. Microwave-assisted methods were developed and successfully employed...

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