| Identification | More | [Name]
2,5-Bis(trifluoromethyl)nitrobenzene | [CAS]
320-88-7 | [Synonyms]
1,4-BIS(TRIFLUOROMETHYL)-2-NITROBENZENE
1-NITRO-2,5-BIS(TRIFLUOROMETHYL)BENZENE
2,5-BIS(TRIFLUOROMETHYL)NITROBENZENE
2,5-DI(TRIFLUOROMETHYL)NITROBENZENE
2-NITRO-1,4-BIS(TRIFLUOROMETHYL)BENZENE
2,5-Bis(trifluoromethyl)nitrobenzene 97%
2,5-Bis(trifluoromethyl)nitrobenzene97%
1-NITRO-2,5-BIS(TRIFLUOROMETHYL)BENZENE,98.0%+(GC) | [Molecular Formula]
C8H3F6NO2 | [MDL Number]
MFCD00236674 | [Molecular Weight]
259.11 | [MOL File]
320-88-7.mol |
| Chemical Properties | Back Directory | [Appearance]
clear yellow liquid | [Boiling point ]
70-75 °C (15 mmHg) | [density ]
1.57 | [refractive index ]
1.4235-1.4255
| [Fp ]
77 °C
| [storage temp. ]
2-8°C | [solubility ]
Chloroform, Methanol | [form ]
Liquid | [color ]
Pale yellow to yellow | [Sensitive ]
Light Sensitive | [CAS DataBase Reference]
320-88-7(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,T | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [Hazard Note ]
Toxic | [HazardClass ]
TOXIC | [HS Code ]
29049090 |
| Hazard Information | Back Directory | [Chemical Properties]
clear yellow liquid | [Uses]
2,5-Bis(Trifluoromethyl)nitrobenzene can be prepared to be used as antifungal agents. | [Synthesis]
General Steps:
Example 2: Using 2,3-difluorotoluene as raw material, adopting the same reaction conditions as in Example 1, but replacing 96 mass% sulfuric acid with fuming sulfuric acid with a sulfur trioxide concentration of 10 mass%, the reaction was stirred at 80° C. for 8 hours to obtain 2,5-bis(trifluoromethyl)nitrobenzene in a yield of 68.7%.
Example 4: Using 2,3-difluorotoluene as raw material, the same reaction conditions as in Example 1 were used, but 96 mass% of sulfuric acid was replaced with fuming sulfuric acid having a sulfur trioxide concentration of 10 mass%, and 97 mass% of fuming nitric acid was replaced with 98 mass% of concentrated nitric acid, and the reaction was stirred at 80°C for 10 hours to obtain 2,5-bis(trifluoromethyl)nitrobenzene in a yield of 65.3%.
Example 7 (Comparative Example): Using 2,3-difluorotoluene as raw material and the same reaction conditions as in Example 1, but replacing 96 mass% sulfuric acid with fuming sulfuric acid with a sulfur trioxide concentration of 24 mass%, 2,5-bis(trifluoromethyl)nitrobenzene was obtained in a yield of 32.5%. | [References]
[1] Patent: EP1468983, 2004, A1. Location in patent: Page 6
[2] Patent: EP1468983, 2004, A1. Location in patent: Page 5; 6
[3] Journal of the American Chemical Society, 1953, vol. 75, p. 4967
[4] Journal of Organic Chemistry, 1995, vol. 60, # 22, p. 7348 - 7350
[5] Patent: WO2011/150156, 2011, A2. Location in patent: Page/Page column 132 |
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