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290378

Sigma-Aldrich

trans-3,4-Difluorocinnamic acid

95%

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About This Item

Linear Formula:
F2C6H3CH=CHCO2H
CAS Number:
Molecular Weight:
184.14
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

assay

95%

mp

194-196 °C (lit.)

functional group

carboxylic acid
fluoro

SMILES string

[H]\C(=C(\[H])c1ccc(F)c(F)c1)C(O)=O

InChI

1S/C9H6F2O2/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5H,(H,12,13)/b4-2+

InChI key

HXBOHZQZTWAEHJ-DUXPYHPUSA-N

Application

trans-3,4-Difluorocinnamic acid has been used in the synthesis of (E)-4-(2-bromovinyl)-1,2-difluorobenzene.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Chi Wai Cheung et al.
The Journal of organic chemistry, 77(17), 7526-7537 (2012-07-31)
A copper(II)-catalyzed oxidative cyclization of enamides to oxazoles via vinylic C-H bond functionalization at room temperature is described. Various 2,5-disubstituted oxazoles bearing aryl, vinyl, alkyl, and heteroaryl substituents could be synthesized in moderate to high yields. This reaction protocol is

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