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Safety Information

381322

Sigma-Aldrich

4,4′-Difluorobenzil

98%

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About This Item

Linear Formula:
FC6H4COCOC6H4F
CAS Number:
579-39-5
Molecular Weight:
246.21
MDL number:
MFCD00134541
UNSPSC Code:
12352100
PubChem Substance ID:
24863805

Assay

98%

mp

120-122 °C (lit.)

SMILES string

Fc1ccc(cc1)C(=O)C(=O)c2ccc(F)cc2

InChI

1S/C14H8F2O2/c15-11-5-1-9(2-6-11)13(17)14(18)10-3-7-12(16)8-4-10/h1-8H

InChI key

BRKULQOUSCHDGS-UHFFFAOYSA-N

Gene Information

human ... ACHE(43) , BCHE(590) , CES1(1066)

General description

4,4′-Difluorobenzil is a benzil derivative. Its reaction with benzylurea and phenethylurea has been investigated. It is reported to undergo condensation with Fe2(SH)2(CO)6 to afford the adduct Fe2[S2C2(OH)2(C6H4-4-F)2](CO)6.

Application

4,4′-Difluorobenzil is suitable for use in the preparation of 2,3-bis(4-fluorophenyl)thieno[3,4-b]pyrazine. It may be used in the synthesis of following:
  • poly(ether-α-diketone)s, via nucleophilic substitution reaction with bisphenol A
  • 4,4′-difluoro-2,3-diphenylpyrazine (DPPF) and 4,4′-difluoro-5-methyl 2,3-diphenylpyrazine (MDPPF), via direct condensation with ethylenediamine and 1,2-diaminopropane, respectively
  • 2,3-bis(4-fluorophenyl)quinoxaline, via direct condensation with 1,2-phenylenediamine

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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.

JAN Code

381322-5G:
381322-1G:
381322-BULK:
381322-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKBS5948V
MKBR3227V
MKBN5913V
MKBL4821V
MKBJ5205V

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Jane L Stanley et al.
Organometallics, 26(8), 1907-1911 (2008-07-02)
Reaction of Fe(2)(SH)(2)(CO)(6) and HCHO, which gives Fe(2)[(SCH(2))(2)NH](CO)(6) in the presence of NH(3), affords the possible intermediate Fe(2)(SCH(2)OH)(2)(CO)(6), which has been characterized crystallographically as its axial-equatorial isomer. Fe(2)(SCH(2)OH)(2)(CO)(6) was shown to react with ammonia and amines to give Fe(2)[(SCH(2))(2)NR](CO)(6) (R
Synthesis and Characterization of N-(2-Ethylhexyl) carbazole-2, 3-Bis (4-fluorophenyl)) thieno [3, 4-b] pyrazine Copolymer.
Li JC, et al.
Bull. Korean Chem. Soc., 31(7), 2073-2076 (2010)
Yellow organic light-emitting diodes based on phosphorescent iridium (III) pyrazine complexes: Fine tuning of emission color.
Ge G, et al.
Inorgorganica Chimica Acta, 362(7), 2231-2226 (2009)
Fu-Ming Hwang et al.
Inorganic chemistry, 44(5), 1344-1353 (2005-03-01)
Rational design and syntheses of four iridium complexes (1-4) bearing two substituted quinoxalines and an additional 5-(2-pyridyl) pyrazolate or triazolate as the third coordinating ligand are reported. Single-crystal X-ray diffraction studies of 1 reveal a distorted octahedral geometry, in which
Synthesis and investigation of the properties of aromatic polymers prepared by using samarium diiodide.
Brandukova NE, et al.
Acta Polym., 42(2-3) (1991)
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