| |||
Names | |||
---|---|---|---|
Preferred IUPAC name
1,2-Difluorobenzene | |||
Other names
o-Difluorobenzene
ortho-Difluorobenzene | |||
Identifiers | |||
3D model (
JSmol)
|
|||
ChEBI | |||
ChemSpider | |||
ECHA InfoCard | 100.006.074 | ||
PubChem
CID
|
|||
UNII | |||
CompTox Dashboard (
EPA)
|
|||
| |||
| |||
Properties | |||
C6H4F2 | |||
Molar mass | 114.093 g/mol | ||
Appearance | colorless liquid | ||
Density | 1.1599 g/cm3 | ||
Melting point | −34 °C (−29 °F; 239 K) | ||
Boiling point | 92 °C (198 °F; 365 K) | ||
(insoluble) 1.14 g/L | |||
Related compounds | |||
Related compounds
|
1,2-Dichlorobenzene | ||
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
1,2-Difluorobenzene, also known as DFB, is an aromatic compound with formula C6H4F2. This colorless flammable liquid is a solvent used in the electrochemical studies of transition metal complexes. Compared to most conventional halogenated aliphatic and aromatic solvents, it possesses an exceptionally high dielectric constant (ε0 = 13.8 at 300 K). Thus, it can be a suitable solvent for cationic, and/or highly electrophilic organometallic complexes. [2]
Difluorobenzenes can be prepared by the Balz-Schiemann reaction, which entails conversion of diazonium tetrafluoroborate salts to their fluorides. The synthesis of 1,2-difluorobenzene starts with 2- fluoroaniline: [3]
The syntheses of 1,3- and 1,4-difluorobenzene proceed respectively from 1,3- and 1,4-diaminobenzene, which are doubly diazotized. [4]
Organometallic derivatives of 1,2-difluorobenzene have been well developed. It is found to be a weaker base than benzene. [5]
1,2-Difluorobenzene has been used as solvent for the electrochemical analysis of transition metal complexes. It is relatively chemically inert, weakly coordinating and has a relatively high dielectric constant. It is a weakly coordinating for metal complexes, in contrast to acetonitrile, DMSO, and DMF. [6]
It has anaesthetic properties. [7]
1,2-Difluorobenzene can be acylated to 3',4'-difluoropropiophenone. [8]
| |||
Names | |||
---|---|---|---|
Preferred IUPAC name
1,2-Difluorobenzene | |||
Other names
o-Difluorobenzene
ortho-Difluorobenzene | |||
Identifiers | |||
3D model (
JSmol)
|
|||
ChEBI | |||
ChemSpider | |||
ECHA InfoCard | 100.006.074 | ||
PubChem
CID
|
|||
UNII | |||
CompTox Dashboard (
EPA)
|
|||
| |||
| |||
Properties | |||
C6H4F2 | |||
Molar mass | 114.093 g/mol | ||
Appearance | colorless liquid | ||
Density | 1.1599 g/cm3 | ||
Melting point | −34 °C (−29 °F; 239 K) | ||
Boiling point | 92 °C (198 °F; 365 K) | ||
(insoluble) 1.14 g/L | |||
Related compounds | |||
Related compounds
|
1,2-Dichlorobenzene | ||
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
1,2-Difluorobenzene, also known as DFB, is an aromatic compound with formula C6H4F2. This colorless flammable liquid is a solvent used in the electrochemical studies of transition metal complexes. Compared to most conventional halogenated aliphatic and aromatic solvents, it possesses an exceptionally high dielectric constant (ε0 = 13.8 at 300 K). Thus, it can be a suitable solvent for cationic, and/or highly electrophilic organometallic complexes. [2]
Difluorobenzenes can be prepared by the Balz-Schiemann reaction, which entails conversion of diazonium tetrafluoroborate salts to their fluorides. The synthesis of 1,2-difluorobenzene starts with 2- fluoroaniline: [3]
The syntheses of 1,3- and 1,4-difluorobenzene proceed respectively from 1,3- and 1,4-diaminobenzene, which are doubly diazotized. [4]
Organometallic derivatives of 1,2-difluorobenzene have been well developed. It is found to be a weaker base than benzene. [5]
1,2-Difluorobenzene has been used as solvent for the electrochemical analysis of transition metal complexes. It is relatively chemically inert, weakly coordinating and has a relatively high dielectric constant. It is a weakly coordinating for metal complexes, in contrast to acetonitrile, DMSO, and DMF. [6]
It has anaesthetic properties. [7]
1,2-Difluorobenzene can be acylated to 3',4'-difluoropropiophenone. [8]