Product Name

  • Name

    2-Fluoro-4-nitrobenzoic acid

  • EINECS -0
  • CAS No. 403-24-7
  • Article Data27
  • CAS DataBase
  • Density 1.568 g/cm3
  • Solubility
  • Melting Point 170 °C
  • Formula C7H4FNO4
  • Boiling Point 352.5 °C at 760 mmHg
  • Molecular Weight 185.111
  • Flash Point 167 °C
  • Transport Information
  • Appearance white to light yellow crystal powder
  • Safety 26-37/39-36/37/39-22
  • Risk Codes 36/37/38-22
  • Molecular Structure Molecular Structure of 403-24-7 (2-Fluoro-4-nitrobenzoic acid)
  • Hazard Symbols IrritantXi, HarmfulXn
  • Synonyms NSC 190361;2-fluoro-4-nitrobenzenecarboxylic acid;
  • PSA 83.12000
  • LogP 1.95530

Synthetic route

2-fluoro-4-nitrotoluene
1427-07-2

2-fluoro-4-nitrotoluene

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

Conditions
ConditionsYield
With chromium(VI) oxide; periodic acid In acetonitrile for 1h;81%
With chromium(VI) oxide; periodic acid In acetonitrile for 1h;81%
With chromium(VI) oxide; periodic acid In acetonitrile for 1h; Inert atmosphere;81%
1-(2-fluoro-4-nitrophenyl)ethanone
866579-96-6

1-(2-fluoro-4-nitrophenyl)ethanone

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

Conditions
ConditionsYield
With copper (II) nitrate tetrahydrate; oxygen In acetonitrile at 180℃; under 18751.9 Torr; for 1.5h; Green chemistry;69%
2-fluoro-4-nitrotoluene
1427-07-2

2-fluoro-4-nitrotoluene

acetic acid
64-19-7

acetic acid

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

Conditions
ConditionsYield
With potassium dichromate; sulfuric acid at 90℃; for 3h;62%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-4-aminobenzoic acid
446-31-1

2-fluoro-4-aminobenzoic acid

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethyl acetate at 20℃; under 760 Torr;100%
With hydrogen; palladium over charcoal In methanol; acetic acid at 20℃; under 760.051 Torr;100%
With hydrogen; palladium 10% on activated carbon In methanol100%
With ammonium hydroxide; iron(II) sulfate
With palladium 10% on activated carbon; hydrogen In methanol at 20℃; for 16h;
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-4-nitrobenzoyl chloride
403-23-6

2-fluoro-4-nitrobenzoyl chloride

Conditions
ConditionsYield
With thionyl chloride at 80℃; for 3h;100%
With thionyl chloride In toluene for 3h; Heating;86%
With thionyl chloride
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

diazomethyl-trimethyl-silane
18107-18-1

diazomethyl-trimethyl-silane

2-fluoro-4-nitro-benzoic acid methyl ester
392-09-6

2-fluoro-4-nitro-benzoic acid methyl ester

Conditions
ConditionsYield
In methanol; diethyl ether; toluene at 20℃; for 1.5h;100%
In methanol
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

N-(tert-butyl)oxycarbonyl-N,N’-trimethyl-1,3-diaminopropane
123183-72-2

N-(tert-butyl)oxycarbonyl-N,N’-trimethyl-1,3-diaminopropane

tert-Butyl (3-{[(2-fluoro-4-nitrophenyl)carbonyl](methyl)amino}propyl)methylcarbamate
1246246-94-5

tert-Butyl (3-{[(2-fluoro-4-nitrophenyl)carbonyl](methyl)amino}propyl)methylcarbamate

Conditions
ConditionsYield
Stage #1: 2-fluoro-4-nitrobenzoic acid With pivaloyl chloride; triethylamine In dichloromethane at 20℃; for 0.25h; Cooling with ice;
Stage #2: N-(tert-butyl)oxycarbonyl-N,N’-trimethyl-1,3-diaminopropane In dichloromethane at 20℃; for 2h; Cooling with ice;
100%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

5-chloro-4-(1-(phenylsulfonyl)-1-indol-3-yl)-N-(piperidin-4-yl)pyrimidin-2-amine

5-chloro-4-(1-(phenylsulfonyl)-1-indol-3-yl)-N-(piperidin-4-yl)pyrimidin-2-amine

(4-(5-chloro-4-(1-(phenylsulfonyl)-1H-indol-3-yl)pyrimidin-2-ylamino)piperidin-1-yl)(2-fluoro-4-nitrophenyl)methanone

(4-(5-chloro-4-(1-(phenylsulfonyl)-1H-indol-3-yl)pyrimidin-2-ylamino)piperidin-1-yl)(2-fluoro-4-nitrophenyl)methanone

Conditions
ConditionsYield
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane at 23℃;100%
methanol
67-56-1

methanol

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-4-nitro-benzoic acid methyl ester
392-09-6

2-fluoro-4-nitro-benzoic acid methyl ester

Conditions
ConditionsYield
With sulfuric acid for 4h; Reflux;99%
With sulfuric acid Reflux;98%
With sulfuric acid for 15h; Reflux; Large scale;95%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

methylamine
74-89-5

methylamine

2-(methylamino)-4-nitro-benzoic acid
49565-62-0

2-(methylamino)-4-nitro-benzoic acid

Conditions
ConditionsYield
In ethanol at 80℃; for 16h; Sealed tube;91%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

ethyl 5,6-dihydro-4H-benzo[b]thieno[2,3-d]azepine-2-carboxylate hydrobromide

ethyl 5,6-dihydro-4H-benzo[b]thieno[2,3-d]azepine-2-carboxylate hydrobromide

ethyl 6-(2-fluoro-4-nitrobenzoyl)-5,6-dihydro-4H-benzo[b]thieno[2,3-d]azepine-2-carboxylate

ethyl 6-(2-fluoro-4-nitrobenzoyl)-5,6-dihydro-4H-benzo[b]thieno[2,3-d]azepine-2-carboxylate

Conditions
ConditionsYield
Stage #1: 2-fluoro-4-nitrobenzoic acid With thionyl chloride In dichloromethane for 2h; Reflux;
Stage #2: ethyl 5,6-dihydro-4H-benzo[b]thieno[2,3-d]azepine-2-carboxylate hydrobromide With pyridine In acetonitrile at 20 - 50℃; for 5h;
88%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-4-nitrobenzamide
350-32-3

2-fluoro-4-nitrobenzamide

Conditions
ConditionsYield
Stage #1: 2-fluoro-4-nitrobenzoic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 25℃; for 4h;
Stage #2: With ammonia In water for 0.166667h;
85%
With pyridine; ammonium chloride; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide In ethyl acetate53%
With pyridine; ammonium chloride; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide53%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

N,O-dimethylhydroxylamine*hydrochloride
6638-79-5

N,O-dimethylhydroxylamine*hydrochloride

2-fluoro-N-methoxy-N-methyl-4-nitrobenzamide
774239-17-7

2-fluoro-N-methoxy-N-methyl-4-nitrobenzamide

Conditions
ConditionsYield
With pyridine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride at 60℃; for 15h;85%
With pyridine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride at 20℃;
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

4-nitro-2-fluorobenzaldehyde
157701-72-9

4-nitro-2-fluorobenzaldehyde

Conditions
ConditionsYield
With borane-THF In tetrahydrofuran at 80℃; for 3h;83%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

N,N-dimethylammonium chloride
506-59-2

N,N-dimethylammonium chloride

2-fluoro-N,N-dimethyl-4-nitro-benzamide
1187368-66-6

2-fluoro-N,N-dimethyl-4-nitro-benzamide

Conditions
ConditionsYield
With ethylene dichloride hydrochloride; benzotriazol-1-ol; triethylamine In N,N-dimethyl-formamide at 20℃; for 12h;81%
Stage #1: 2-fluoro-4-nitrobenzoic acid With 1,1'-carbonyldiimidazole In dichloromethane at 20℃; for 1h;
Stage #2: N,N-dimethylammonium chloride With triethylamine In dichloromethane for 1h;
60%
1-methyl-4-aminopiperidine
41838-46-4

1-methyl-4-aminopiperidine

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-N-(1-methyl-4-piperidyl)-4-nitro-benzamide
957855-56-0

2-fluoro-N-(1-methyl-4-piperidyl)-4-nitro-benzamide

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; HATU In ISOPROPYLAMIDE at 20℃; for 4h;78%
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 18 - 25℃; for 18h;59%
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 17 - 25℃; for 18h;59%
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 18 - 25℃; for 18h;59%
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 20 - 40℃;
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

2-fluoro-4-nitro-1-(trifluoromethyl)benzene
69411-67-2

2-fluoro-4-nitro-1-(trifluoromethyl)benzene

Conditions
ConditionsYield
With sulfur tetrafluoride; hydrogen fluoride at 85℃; for 24h; Autoclave; Inert atmosphere;78%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

tert-butyl alcohol
75-65-0

tert-butyl alcohol

tert-butyl 2-fluoro-4-nitrobenzoate
157665-46-8

tert-butyl 2-fluoro-4-nitrobenzoate

Conditions
ConditionsYield
With pyridine; p-toluenesulfonyl chloride at 0℃; for 19h;75%
With pyridine; p-toluenesulfonyl chloride at 0℃; for 19h;75%
With pyridine; p-toluenesulfonyl chloride 1.) 15 deg C, 5 min, 2.) RT, 2.5 h; Yield given. Multistep reaction;
With pyridine; p-toluenesulfonyl chloride for 19h;524 mg
t-butoxycarbonylhydrazine
870-46-2

t-butoxycarbonylhydrazine

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

N'-(2-fluoro-4-nitrobenzoyl)hydrazinecarboxylic acid tert-butyl ester
590421-50-4

N'-(2-fluoro-4-nitrobenzoyl)hydrazinecarboxylic acid tert-butyl ester

Conditions
ConditionsYield
With 3-methyl-N-(3-methylbutyl)-1-butanamine; HATU In N,N-dimethyl-formamide at 20℃;57%
Stage #1: 2-fluoro-4-nitrobenzoic acid With N-ethyl-N,N-diisopropylamine; HATU In DMF (N,N-dimethyl-formamide) at 20℃; for 0.333333h;
Stage #2: t-butoxycarbonylhydrazine In DMF (N,N-dimethyl-formamide) at 20℃;
57%
2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

phenylmethanethiol
100-53-8

phenylmethanethiol

2-(benzylsulfanyl)-4-nitrobenzoic acid
92163-95-6

2-(benzylsulfanyl)-4-nitrobenzoic acid

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 65℃; for 35h;55.5%
(14S,16S,32R,33R,2R,4S,10E,12E,14R)-86-chloro-14-hydroxy-85,14-dimethoxy-33,2,7,10-tetramethyl-12,6-dioxo-7-aza-1(6,4)-oxazinana-3(2,3)-oxirana-8(1,3)-benzenacyclotetradecaphane-10,12-dien-4-yl methyl-L-alaninate
77668-69-0

(14S,16S,32R,33R,2R,4S,10E,12E,14R)-86-chloro-14-hydroxy-85,14-dimethoxy-33,2,7,10-tetramethyl-12,6-dioxo-7-aza-1(6,4)-oxazinana-3(2,3)-oxirana-8(1,3)-benzenacyclotetradecaphane-10,12-dien-4-yl methyl-L-alaninate

2-fluoro-4-nitrobenzoic acid
403-24-7

2-fluoro-4-nitrobenzoic acid

C39H46ClFN4O12

C39H46ClFN4O12

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 72h; Inert atmosphere;35%

2-Fluoro-4-nitrobenzoic acid Specification

The systematic name of this chemical is 2-fluoro-4-nitrobenzoic acid. With the CAS registry number 403-24-7, it is also named as 2-fluoro-4-nitrobenzenecarboxylic acid. And the molecular formula of this chemical is C7H4FNO4. It is a kind of white to light yellow crystal powder, and belongs to the following product categories: Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts; Carboxylic Acids; Phenyls & Phenyl-Het; Benzoic acid; Miscellaneous.

The physical properties of 2-Fluoro-4-nitrobenzoic acid are as following: (1)ACD/LogP: 1.73; (2)# of Rule of 5 Violations: 0; (3)ACD/BCF (pH 5.5): 1; (4)ACD/BCF (pH 7.4): 1; (5)ACD/KOC (pH 5.5): 1; (6)ACD/KOC (pH 7.4): 1; (7)#H bond acceptors: 5; (8)#H bond donors: 1; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 83.12 Å2; (11)Index of Refraction: 1.588; (12)Molar Refractivity: 39.722 cm3; (13)Molar Volume: 118.014 cm3; (14)Polarizability: 15.747×10-24cm3; (15)Surface Tension: 62.642 dyne/cm; (16)Density: 1.569 g/cm3; (17)Flash Point: 167.007 °C; (18)Enthalpy of Vaporization: 63.037 kJ/mol; (19)Boiling Point: 352.534 °C at 760 mmHg; (20)Vapour Pressure: 0 mmHg at 25°C.

Preparation of 2-Fluoro-4-nitrobenzoic acid: This chemical can be prepared by 2-fluoro-4-nitro-toluene. The reaction will need reagent aq. KMnO4 and heating. 

2-Fluoro-4-nitrobenzoic acid can be prepared by 2-fluoro-4-nitro-toluene

Uses of 2-Fluoro-4-nitrobenzoic acid: It can be used to produce 2-fluoro-4-nitro-benzoyl chloride. This reaction will need reagents (COCl)2 and DMF, and the solvent tetrahydrofuran. The reaction time is 3 hours with temperature of 0-20°C.

2-Fluoro-4-nitrobenzoic acid can be used to produce 2-fluoro-4-nitro-benzoyl chloride 

You should be cautious while dealing with this chemical. It irritates eyes, respiratory system and skin, and it is also harmful if swallowed. Therefore, you had better take the following instructions: Do not breathe dust; Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: c1cc(c(cc1[N+](=O)[O-])F)C(=O)O
(2)InChI: InChI=1/C7H4FNO4/c8-6-3-4(9(12)13)1-2-5(6)7(10)11/h1-3H,(H,10,11)
(3)InChIKey: MMWFMFZFCKADEL-UHFFFAOYAV

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