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Chemical Structure| 29682-14-2 Chemical Structure| 29682-14-2

Structure of 29682-14-2

Chemical Structure| 29682-14-2

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Product Details of [ 29682-14-2 ]

CAS No. :29682-14-2
Formula : C7H6N2O4
M.W : 182.13
SMILES Code : O=C(OC)C1=NC=C([N+]([O-])=O)C=C1
MDL No. :MFCD09062740

Safety of [ 29682-14-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H312-H315-H319-H332-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 29682-14-2 ]

* 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 [ 29682-14-2 ]

[ 29682-14-2 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 67-56-1 ]
  • [ 30651-24-2 ]
  • [ 29682-14-2 ]
YieldReaction ConditionsOperation in experiment
98% for 16h;Reflux; Compound 24B (1 g, 6 mmol) was dissolved in methanol (50 mL).The reaction solution was heated to reflux for 16 hours. Adjust pH = 8-9 with 1M sodium hydroxide,Extract with ethyl acetate and dry,Concentration gave compound 24C (1 g, 98percent yield).
94% With hydrogenchloride; for 16h;Heating / reflux; Step 3: A suspension of <strong>[30651-24-2]5-nitropicolinic acid</strong> (6.0 g, 36 mmol) in methanolic HCI (1.25 M) was heated to reflux and stirred for 16 hours. The mixture was cooled to ambient temperature. The product was filtered and rinsed with additional methanol (20 mL) and dried under vacuum, providing 6.1 g of methyl 5-nitropicolinate, in 94% yield; 1H NMR (DMSCW) delta 3.95 (s, 3H), 8.29 (dd, 1 H, J = 8.4 Hz, J = 0.6 Hz), 8.75 (dd, IH, J = 8.4 Hz, J = 2.7 Hz), 9.46 (dd, IH, J = 2.7 Hz, J = 0.6 Hz).
89% 5-Nitropyridine-2-carboxylic acid (100 g, 0.60 mol) was heated at reflux in methanol (1 L) and sulfuric acid (57 mL) for 5 hours. The reaction mixture was cooled, reduced to half volume in vacuo, and the residue neutralized with a solution of sodium carbonate. The resulting precipitate was filtered to give methyl 5-nitropyridine-2-carboxylate (yield 89%, 98
With sulfuric acid; for 5h;Reflux; 5-Nitropyridine-2-carboxylic acid (100 g, 0.60 mol) was heated at reflux in methanol (1 L) and sulfuric acid (57 ml_) for 5 hours. The reaction mixture was cooled, reduced to half volume in vacuo, and the residue neutralized with a solution of sodium carbonate. The resulting precipitate was filtered to give methyl 5-nitropyridine-2-carboxylate (yield 89%, 98 g).
With sulfuric acid;Inert atmosphere; Reflux; General procedure: Synthesis of methyl ester derivatives of M6, M7, and M17 was carried out under catalytic esterification conditions as depicted in Scheme 1. To a solution of the appropriate carboxylic acid in methanol few drops of conc. sulfuric acid were added. Subsequently, the reaction mixture was refluxed for 6-10 h. After completion, the volatile solvents were evaporated under reduced pressure and the residue was dissolved in water/ethyl acetate mixture. The aqueous phase was extracted with ethyl acetate and the combined organic phase was washed with 5% sodium bicarbonate, brine, and was dried over anhydrous sodium sulfate. After filtration the desired ester was obtained using flash column chromatography.

 

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