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A11550 4,4'-Difluorobenzil, 99%

CAS Number
579-39-5
Synonyms
4,4'-Difluorodibenzoyl

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Bulk/Specialty

4,4'-Difluorobenzil, 99%

MDL
MFCD00134541

Chemical Properties

Formula
C14H8F2O2
Formula Weight
246.22
Melting point
120-122°
Storage & Sensitivity
Ambient temperatures.
Solubility
Soluble in water.

Applications

4,4?-Difluorobenzil is used in the preparation of 2,3-bis(4-fluorophenyl)thieno[3,4-b]pyrazine. It is also used in the synthesis of 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.

Notes

Store in a cool, dry, well-ventilated area away from incompatible substances such as oxidizing agents.

Literature References

Fu-Ming Hwang; Hsing-Yi Chen; Po-Shen Chen; Chao-Shiuan Liu; Yun Chi; Ching-Fong Shu; Fang-Iy Wu; Pi-Tai Chou; Shie-Ming Peng; Gene-Hsiang Lee. Iridium(III) complexes with orthometalated quinoxaline ligands: subtle tuning of emission to the saturated red color. Inorganic Chemistry.2005, 44 (5), 1344-1353.

Giulio G Muccioli; Johan Wouters; Jacques H Poupaert; Bernadette Norberg; Wolfgang Poppitz; Gerhard K E Scriba; Didier M Lambert. Versatile access to benzhydryl-phenylureas through an unexpected rearrangement during microwave-enhanced synthesis of hydantoins. Organic Letters.2003, 5 (20), 3599-3602.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Beilstein
1971736
Harmonized Tariff Code
2914.79
TSCA
Yes

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