| Identification | More | [Name]
1-Chloro-2,5-difluorobenzene | [CAS]
2367-91-1 | [Synonyms]
1-CHLORO-2,5-DIFLUOROBENZENE
2,5-DIFLUOROCHLOROBENZENE
2-CHLORO-1,4-DIFLUOROBENZENE
Benzene,2-chloro-1,4-difluoro-
1-CHLORO-2 5-DIFLUOROBENZENE 98%
1-Chloro-2,5-difluorobenzene, 98% [2-Chloro-1,4-difluorobenzene]
1-Chloro-2,5-difluorobenzene98% | [EINECS(EC#)]
624-315-3 | [Molecular Formula]
C6H3ClF2 | [MDL Number]
MFCD00042571 | [Molecular Weight]
148.54 | [MOL File]
2367-91-1.mol |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,F,Xi | [Risk Statements ]
R10:Flammable.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37:Irritating to eyes and respiratory system .
R36/37/38:Irritating to eyes, respiratory system and skin .
R11:Highly Flammable. | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection . | [RIDADR ]
UN 1993 3/PG 2
| [WGK Germany ]
3
| [Hazard Note ]
Flammable | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
2903998090 |
| Hazard Information | Back Directory | [Chemical Properties]
Colorless liquid | [Synthesis]
GENERAL STEPS: In a FEP or PFA reactor fitted with a PTFE-lined magnetic stirring bar and connected to a gas scrubber bottle, substituted benzene (0.95-1.10 mmol), 1,1,1,3,3-pentafluorobutane (2 ml per ml of C6H5R), and BF3-Et2O (1.3-1.5 mmol per mmol C6H5R) were added. The mixture was stirred at 0-5 °C (ice bath) for 10-15 min, followed by batchwise addition of XeF2 (1.2-1.3 mmol per mmol C6H5R). After each addition, the mixture was stirred at 22-25 °C for 3-5 min and cooled to 0-5 °C again. After the addition was completed, the dark colored solution was continued to be stirred at 22-25°C for 15-30 minutes. At the end of the reaction, the reaction was quenched by the addition of 10% aqueous KHCO3, the upper organic layer was separated and filtered through a short column packed with silica gel (40-60 μm). The organic layer was dried with magnesium sulfate and analyzed by 19F NMR and GC/MS. The major products are listed in the table and the others are as follows (GC/MS data). | [References]
[1] Russian Journal of Organic Chemistry, 2016, vol. 52, # 10, p. 1400 - 1407
[2] Zh. Org. Khim., 2016, vol. 52, # 10, p. 1412 - 1419,8 |
|
|