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Chemical Structure| 455-37-8 Chemical Structure| 455-37-8
Chemical Structure| 455-37-8

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m-Fluorobenzamide is a fluorinated aromatic amine compound commonly used in drug discovery and biochemical research.

Synonyms: m-Fluorobenzamide

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Product Details of m-Fluorobenzamide

CAS No. :455-37-8
Formula : C7H6FNO
M.W : 139.13
SMILES Code : O=C(N)C1=CC=CC(F)=C1
Synonyms :
m-Fluorobenzamide
MDL No. :MFCD00007983
InChI Key :YPIGHNIIXYSPKF-UHFFFAOYSA-N
Pubchem ID :68000

Safety of m-Fluorobenzamide

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P301+P312-P302+P352-P304+P340-P305+P351+P338

Application In Synthesis of m-Fluorobenzamide

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 455-37-8 ]

[ 455-37-8 ] Synthesis Path-Downstream   1~35

  • 2
  • [ 50-00-0 ]
  • [ 455-37-8 ]
  • [ 141409-15-6 ]
  • 3-(3'-fluorobenzamidomethyl)-6-methylthio-2-(4'-tolyl)imidazo<1,2-b>pyridazine [ No CAS ]
  • 3
  • [ 50-00-0 ]
  • [ 455-37-8 ]
  • [ 156146-50-8 ]
  • 6-fluoro-3-(3'-fluorobenzamidomethyl)-2-(3'',4''-methylenedioxyphenyl)imidazo<1,2-b>pyridazine [ No CAS ]
  • 4
  • [ 50-00-0 ]
  • [ 455-37-8 ]
  • [ 141409-81-6 ]
  • 5
  • [ 455-37-8 ]
  • [ 455-38-9 ]
  • 6
  • [ 455-37-8 ]
  • 1-methyl-5-(3-fluorophenyl)tetrazole [ No CAS ]
  • 8
  • [ 67-56-1 ]
  • [ 455-37-8 ]
  • [ 455-68-5 ]
  • 9
  • [ 88229-23-6 ]
  • [ 455-37-8 ]
  • 10
  • N,N-diallyl-3-fluorobenzamide [ No CAS ]
  • [ 455-37-8 ]
  • 11
  • [ 455-37-8 ]
  • [ 851181-30-1 ]
  • 12
  • [ 455-37-8 ]
  • [ 1027058-38-3 ]
  • 13
  • [ 455-37-8 ]
  • 6-fluoro-3-(3'-fluorobenzamidomethyl)-2-phenylimidazo<1,2-b>pyridazine [ No CAS ]
  • 14
  • [ 455-37-8 ]
  • 6-chloro-3-(3'-fluorobenzamidomethyl)-2-phenylimidazo<1,2-b>pyridazine [ No CAS ]
  • 15
  • [ 455-37-8 ]
  • 6-fluoro-3-(3'-fluorobenzamidomethyl)-2-(4''-tolyl)imidazo<1,2-b>pyridazine [ No CAS ]
  • 16
  • [ 455-37-8 ]
  • 6-chloro-3-(3'-fluorobenzamidomethyl)-2-(4''-tolyl)imidazo<1,2-b>pyridazine [ No CAS ]
  • 17
  • [ 455-37-8 ]
  • [ 52023-00-4 ]
  • 19
  • paraformaldehyde [ No CAS ]
  • 3-methyl-1',2',3',6'-tetrahydro-2,4'-bipyridine trifluoroacetate salt [ No CAS ]
  • [ 455-37-8 ]
  • 3-fluoro-N-[(3-methyl-3',6'-dihydro-2,4'-bipyridin-1'(2'H)-yl)methyl]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
74% With potassium carbonate; In ethanol;Heating / reflux; [1643] A mixture of the product from Example 143B (trifluoroacetic acid salt, 29 mg, 0.1 mmol), paraformaldehyde (30 mg, 1 mmol), <strong>[455-37-8]3-fluorobenzamide</strong> (70 mg, 0.5 mmol, Aldrich), and 42 mg of potassium carbonate (0.3 mmol) in 2.5 mL absolute ethyl alcohol was heated to reflux under nitrogen overnight. The mixture was cooled to room temperature, filtered, and the solvent was removed under reduced pressure under reduced pressure. The residue was purified by flash column chromatography on silica gel (10% methanol:ethyl acetate) to give 24 mg (74%) pure compound. 1H NMR (500 MHz, DMSO-d6) delta2.30 (s, 3H), 2.47 (m, 2H), 2.76 (m, 2H), 3.25 (m, 2H), 4.28 (d, J=6 Hz, 2H), 5.80 (m, 1H), 7.14 (m, 1H), 7.39 (t, J=6 Hz, 1H), 7.55 (m, 2H), 7.69 (d, J=6 Hz, 1H), 7.76 (d, J=6 Hz, 1H), 8.34 (d, J=6 Hz, 1H), 8.91 (t, J=6 Hz, 1H); MS (ESI APCI-) m/e 324 (M-H)+.
  • 20
  • [ 630118-73-9 ]
  • [ 455-37-8 ]
  • 3-fluoro-N-[(3-methyl-3',6'-dihydro-2,4'-bipyridin-1'(2'H)-yl)methyl]benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
24 mg (74%) With potassium carbonate; paraformaldehyde; In ethanol; EXAMPLE 212 3-fluoro-N-[(3-methyl-3',6'-dihydro-2,4'-bipyridin-1'(2'H)-yl)methyl]benzamide A mixture of the product from Example 143B (trifluoroacetic acid salt, 29 mg, 0.1 mmol), paraformaldehyde (30 mg, 1 mmol), <strong>[455-37-8]3-fluorobenzamide</strong> (70 mg, 0.5 mmol, Aldrich), and 42 mg of potassium carbonate (0.3 mmol) in 2.5 mL absolute ethyl alcohol was heated to reflux under nitrogen overnight. The mixture was cooled to room temperature, filtered, and the solvent was removed under reduced pressure under reduced pressure. The residue was purified by flash column chromatography on silica gel (10% methanol:ethyl acetate) to give 24 mg (74%) pure compound. 1H NMR (500 MHz, DMSO-d6) delta2.30 (s, 3H), 2.47 (m, 2H), 2.76 (m, 2H), 3.25 (m, 2H), 4.28 (d, J=6 Hz, 2H), 5.80 (m, 1H), 7.14 (m, 1H), 7.39 (t, J=6 Hz, 1H), 7.55 (m, 2H), 7.69 (d, J=6 Hz, 1H), 7.76 (d, J=6 Hz, 1H), 8.34 (d, J=6 Hz, 1H), 8.91 (t, J=6 Hz, 1H); MS (ESI APCI-) m/e 324 (M-H)+.
  • 21
  • [ 455-37-8 ]
  • [ 1092101-15-9 ]
  • [ 1092101-19-3 ]
  • [ 1092101-28-4 ]
  • 24
  • [ 455-37-8 ]
  • [ 3556-52-3 ]
YieldReaction ConditionsOperation in experiment
44% With sulfuric acid; nitric acid; at 10℃; Amide 18 (20 g, 144 mmol) was dissolved in cone, nitric acid (40 mL) and added dropwise to a mixture of cone, sulphuric acid (70 mL) and cone, nitric acid (10 mL) while <n="39"/>keeping the temperature <10 0C. The mixture was partitioned between water (1 L) and ethylacetate (IL) and the organic phase separated, dried (MgSO4) and evaporated to an oil. This was suspended in ethylacetate (100 mL) and heated. Hexane (100 mL) was added and the mixture was cooled to -20C overnight. The resulting crystalline solid was collected by filtration and washed with hexane to give nitroamide 19 as white crystals (11.5 g, 44%): m.p. 129-130 C.
  • 25
  • [ 456-47-3 ]
  • [ 455-37-8 ]
  • [ 369-83-5 ]
  • 26
  • [ 455-37-8 ]
  • C31H35ClN4O4 [ No CAS ]
  • C38H40FN5O5 [ No CAS ]
  • 27
  • [ 455-37-8 ]
  • C31H35ClN4O4 [ No CAS ]
  • C38H40FN5O5 [ No CAS ]
  • 28
  • [ 455-37-8 ]
  • [ 1354531-79-5 ]
  • C27H28FN5O4 [ No CAS ]
  • 29
  • [ 455-37-8 ]
  • [ 1314082-90-0 ]
  • 30
  • [ 455-37-8 ]
  • [ 1314082-92-2 ]
  • 31
  • [ 455-37-8 ]
  • [ 72505-20-5 ]
YieldReaction ConditionsOperation in experiment
89% With Lawessons reagent; In tetrahydrofuran; at 60℃; Synthesis of 3-fluorobenzenecarbothioamide (Intermediate a)A 100 mL round-bottomed flask equipped with condenser and magnetic stirrer was charged with <strong>[455-37-8]3-fluorobenzoamide</strong> (2.0 g, 14.4 mmol), which was dissolved in 30 mL of THF, then Lawesson's reagent was added to the solution (3.5 g, 8.64 mmol). The mixture was heated to 60C and stirred overnight; the transformation was monitored by TLC (Eluent: n-hexane/EtOAc 7:3). The solution was cooled at room temperature and the solvent removed by vacuum distillation.The crude was purified by flash chromatography (Eluent: n-hexane/EtOAc 7:3) from which 3- fluorobenzenecarbothioamide was obtained as a yellow solid (2.0 g, 12.9 mmol, Y = 89 %).1H-NMR (CDCl3): delta 7.80-7.55 (bs, 1H, NH2), 7.66-7.60 (m, 2H), 7.44-7.37 (m, 1H), 7.27-7.20 (m, 1H), 7.30-7.00 (bs, 1H, NH2).MS (ES1+) m/z; 156.11 [M+H]+.
89% With Lawessons reagent; In tetrahydrofuran; at 60℃; Synthesis of 3-fluorobenzenecarbothioamide (Intermediate a) A 100 mL round-bottomed flask equipped with condenser and magnetic stirrer was charged with <strong>[455-37-8]3-fluorobenzoamide</strong> (2.0 g, 14.4 mmol), which was dissolved in 30 mL of THF, then Lawesson's reagent was added to the solution (3.5 g, 8.64 mmol). The mixture was heated to 60 C and stirred overnight; the transformation was monitored by TLC (Eluent: n-hexane /EtOAc 7:3). The solution was cooled at room temperature and the solvent removed by vacuum distillation. The crude was purified by flash chromatography (Eluent: n-hexane / EtOAc 7:3) from which 3-fluorobenzenecarbothioamide was obtained as a yellow solid (2.0 g, 12.9 mmol, Y = 89 %). 1H-NMR (CDCl3): delta 7.80-7.55 (bs, 1H, NH2), 7.66-7.60 (m, 2H), 7.44-7.37 (m, 1H), 7.27-7.20 (m, 1H), 7.30-7.00 (bs, 1H, NH2). MS (ES1+) m/z: 156.11 [M+H]+.
With Lawessons reagent; In tetrahydrofuran; for 4h;Reflux; General procedure: To a solution of benzamide 11a-u (1 equiv) in THF (30mL) was added Lawesson?s reagent (0.6 equiv), and the mixture was heated to reflux for 4 hrs. The reaction mixture was concentrated invacuo,then diluted with ethyl acetate (30 ml), and washed with 1N NaHCO3 (3× 20 mL) and brine (2 × 20 mL). The organic layer was dried over anhydrous sodium sulfate,filtered and evaporated under reduced pressure. The crude product was purified by silica gel column chromatography using a mixture of dichloromethane/methanol(100:1, v/v) as eluent to afford a yellow solid product.A solution of the obtained solid 12a-u (1 equiv) and ethyl 2-chloroacetoacetate (1.2 equiv) in ethanol (25 ml) was heated to reflux for 6 h, then the mixture was allowed to stand at 0 C for 10 hrs, and a white needle crystal was precipitate out.The reaction mixture was filtered and the filter cake was washed with 10 mL of ethanol, dried in vacuum to give the desired product.
  • 32
  • [ 455-37-8 ]
  • [ 1380333-86-7 ]
  • [ 1380333-96-9 ]
 

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