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Chemical Structure| 561297-96-9 Chemical Structure| 561297-96-9

Structure of 561297-96-9

Chemical Structure| 561297-96-9

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Product Details of [ 561297-96-9 ]

CAS No. :561297-96-9
Formula : C6H7FN2
M.W : 126.13
SMILES Code : NCC1=NC=C(F)C=C1
MDL No. :MFCD10697659
InChI Key :OALKYGZLLCDVEN-UHFFFAOYSA-N
Pubchem ID :45079543

Safety of [ 561297-96-9 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H319
Precautionary Statements:P305+P351+P338

Application In Synthesis of [ 561297-96-9 ]

* 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 [ 561297-96-9 ]

[ 561297-96-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 327056-62-2 ]
  • [ 561297-96-9 ]
YieldReaction ConditionsOperation in experiment
44% With ammonia; hydrogen;nickel; In ethanol; at 70℃; under 25858.1 Torr; for 16h; Preparation 85; 2-Aminomethyl-5-fluoropyridine (dihydrochloride); Combine a mixture of <strong>[327056-62-2]2-cyano-5-fluoropyridine</strong> (63.2 g, 0.52 mol), 22.5 g of Raney nickel, and ethanol (1.5 L) saturated with ammonia and hydrogenate at 500 p. s. i. and 70 C for 16 h. Chromatograph the dark purple liquid over flash silica gel (methylene chloride/methanol/ammonia hydroxide-95: 4.5 : 0.5) to give, after concentration at 25-30 C, a yellow liquid of the pure desired free base, 25.0 g (44%); 'H NMR (DMSO-d6) 8 8.43 (d, J= 2.9 Hz, 1H), 7.66 (m, 1H), 7.50 (m, 1H), 3.77 (s, 2H), 2.10 (br, 2H); MS (ESI) m/z 127 (m+H). Add to a solution of the free base (20.0 g, 159.0 mmol) in 150 ml of 1,4-dioxane, 4N HC1 in dioxane (150 mL, 3.8 eq. ) and a white solid separates immediately. Dilute the solid with ethyl ether (300 mL) and filter. Dry the product at 20 mm Hg, 60 C, to give the pure dihydrochloride title compound, 30.0 g (95%) ; lH NMR (DMSO-d6) 6 8.61 (d, J= 2.9 Hz, 1H), 8.50 (brs, 3H), 7.82 (m, 1H), 7.62 (m, 1H), 7.50 (br, 1H), 4.18 (m, 2H); MS (ESI) m/z 127 (rn+H, free base).
With hydrogenchloride; hydrogen;palladium 10% on activated carbon; In methanol; at 20℃; for 4h; The mixture of <strong>[327056-62-2]5-fluoro-pyridine-2-carbonitrile</strong> (0.16 g,1.27mmol) and Pd/C (0.030 g, 10% wt) in 15 ml of MeOH and0.50 ml of concentrated HCl was placed under H2 which wasprovided by a balloon and stirred at RT for 4 h, filteredthrough Celite, condensed, the residue was purified byflash column chromatography. The titled compound wasobtained as a light yellowish solid. MS(ES+): 127.2 (freebase) (M+H)+ . Calc'd for C6H7FN2 (free base)- 126.13.
With hydrogenchloride; hydrogen;palladium 10% on activated carbon; In methanol; water; at 20℃; for 4h; The mixture of <strong>[327056-62-2]5-fluoro-pyridine-2-carbonitrile</strong> (0.16 g, 1.27 mmol) and Pd/C (0.030 g, 10% wt) in 15 ml of MeOH and 0.50 ml of concentrated HCl was placed under H2 which was provided by a balloon and stirred at RT for 4 h, filtered through Celite, condensed, the residue was purified by flash column chromatography. The titled compound was obtained as a light yellowish solid. MS (ES+): 127.2 (free base)(M+H)+. Calc'd for C6H7FN2 (free base) 126.13.
With hydrogenchloride; palladium 10% on activated carbon; hydrogen; In ethanol; under 2327.23 Torr; for 3.5h; Example 32.2-(6-Fluoro-imidazo[l ,5-a]pyridin-l -yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid [(R)-2-(3- cyano-azetidin- 1 -yl)- 1 -methyl-2- xo-ethyl]-amideStep 1(5 -Fluoro-pyridin-2-yl)-meth lamineIn a Parr pressure bottle, <strong>[327056-62-2]2-cyano-5-fluoropyridine</strong> (2.0 g, 16.4 mmol) was dissolved in ethanol (60 ml). Palladium on carbon, 10% Pd (wet) (574 mg, 5.39 mmol) was added followed by cone. HC1 (4.6 ml, 56.0 mmol). The bottle was placed on a Parr hydrogenator and shaken for 3.5 h under a 45 psi hydrogen atmosphere. The reaction mixture was filtered over Celite and rinsed with methanol. The filtrate was concentrated to a light yellow solid. The solid was taken up in dichloromethane, cooled to 0C, and basified with saturated aqueous NaHC03. The aqueous layer was extracted with dichloromethane (3x) and the combined organics were dried over sodium sulfate, filtered and concentrated to give 558 mg (27%) of (5-fluoro-pyridin-2-yl)- methylamine as a yellow oil which was used without further purification.

 

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