ChemicalBook Product Catalog Organic Chemistry Organic fluorine compound Fluorobenzonitrile series 3,4-Difluorobenzonitrile

3,4-Difluorobenzonitrile

3,4-Difluorobenzonitrile Basic information
Product Name:3,4-Difluorobenzonitrile
Synonyms:3,4-difluorophenyl-carbonitrile;LABOTEST-BB LT00847816;4-CYANO-1,2-DIFLUOROBENZENE;3,4-DIFLUOROBENZONITRILE;Benzonitrile, 3,4-difluoro- (9CI);3,4-Difluorobenzonitrile,98%;Benzonitrile, 3,4-difluoro-;3,4-Difluorobenzonitrile,97%
CAS:64248-62-0
MF:C7H3F2N
MW:139.1
EINECS:264-751-8
Product Categories:C6 to C7;Cyanides/Nitriles;Nitrogen Compounds;Fluorobenzene;Miscellaneous;Fluorine Compounds;Nitriles;Pesticide Intermediate;Fluorine series;NITRILE;Trifluoromethoxybenzene Series;J's
Mol File:64248-62-0.mol
3,4-Difluorobenzonitrile Structure
3,4-Difluorobenzonitrile Chemical Properties
Melting point 52-54 °C (lit.)
Boiling point 180 °C
density 1.2490 (estimate)
Fp 157 °F
storage temp. Sealed in dry,Room Temperature
solubility soluble in Methanol
form powder to lump
color White to Light yellow
BRN 2082224
InChIKeyBTBFCBQZFMQBNT-UHFFFAOYSA-N
CAS DataBase Reference64248-62-0(CAS DataBase Reference)
Safety Information
Hazard Codes Xn,T,Xi
Risk Statements 20/21/22-36/37/38
Safety Statements 26-36/37-36/37/39
RIDADR UN 1325 4.1/PG 2
WGK Germany 3
Hazard Note Toxic
HazardClass 6.1
PackingGroup III
HS Code 29269090
MSDS Information
ProviderLanguage
3,4-Difluorobenzonitrile English
SigmaAldrich English
ACROS English
ALFA English
3,4-Difluorobenzonitrile Usage And Synthesis
Chemical Propertieswhite to light yellow crystal powder
Uses3,4-Difluorobenzonitrile has been used in the preparation of:
  • fluorophenoxy herbicides
  • fluorine substituted benzyl amides
PreparationThe preparation of 3,4-Difluorobenzonitrile is as follows:To the dry reactor was added 289.6 kg (1.843 kmoles) of 3,4-difluorobenzamide and 800 kg of dichloroethane solution, 241.2 kg (2.02 kmoles) of dichlorosulfoxide and catalyst DMF I.5 And the reaction was carried out at 50 ° C for 5 hours with stirring. After the reaction was complete, the reaction solution was poured into ice water with stirring and the mixture was separated to obtain a crude product having a qualitative content of 96% of 3,4-difluorobenzonitrile 259.1 kg (1.788 kmoles) in 97% yield. The crude product was distilled to give a qualitative content of 99% of 3,4,8-difluorobenzonitrile 248.6 kg (1.77 kmoles) and a distillation yield of 99%.

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Application 3,4-Difluorobenzonitrile can be used as an intermediate of medicine, pesticide and liquid crystal material.
3,4-Difluorobenzonitrile Preparation Products And Raw materials
Preparation Products4-(4-FLUOROPHENYL)-3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]THIAZINE-7-CARBONITRILE-->3-Fluoro-4-(methylsulphonyl)benzonitrile
3-CHLORO-2,4-DIFLUOROBENZONITRILE 4-BROMO-2,3-DIFLUOROBENZONITRILE 4-bromo-2,5-difluorobenzonitrile 4-(bromomethyl)-2,3-difluorobenzonitrile 2,6-DIFLUOROBENZONITRILE/BENZAMIDE 2-CHLORO-3,6-DIFLUOROBENZONITRILE 2-AMINO-4,5-DIFLUOROBENZONITRILE 2,4-DIFLUOROBENZONITRILE,2,4-Difluorobenzonitrile,98%,2,4-Difluorobenzonitrile 98%,2,4-DIFLUOROBENZONITRILE 97+% 3-Chloro-2,4-difluorobenzonitrile 2-ETHOXY-3,5-DIFLUOROBENZONITRILE 4-(bromomethyl)-2,5-difluorobenzonitrile 2-Bromo-4,5-difluorobenzonitrile 2-methoxy-4,5-difluorobenzonitrile 5-CHLORO-2,4-DIFLUOROBENZONITRILE 3-METHOXY-2,4-DIFLUOROBENZONITRILE 4-CHLORO-2,6-DIFLUOROBENZONITRILE 4-(dimethylamino)-3,5-difluorobenzonitrile 3-AMINO-2,6-DIFLUOROBENZONITRILE
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