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Chemical Structure| 143484-14-4 Chemical Structure| 143484-14-4

Structure of 143484-14-4

Chemical Structure| 143484-14-4

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Product Details of [ 143484-14-4 ]

CAS No. :143484-14-4
Formula : C12H14N2O4
M.W : 250.25
SMILES Code : O=C(OC)C1=CC=C([N+]([O-])=O)C(C=CN(C)C)=C1

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Application In Synthesis of [ 143484-14-4 ]

* 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 [ 143484-14-4 ]

[ 143484-14-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 143484-14-4 ]
  • [ 148625-35-8 ]
YieldReaction ConditionsOperation in experiment
With sodium periodate; water; In tetrahydrofuran; at 20℃; for 3h; A solution of 3-methyl-4-nitro-benzoic acid methyl ester (24.99 g, 128.1 mmol) and N,N-dimethylformamide dimethyl acetal (40.0 mL, 300 mmol) was heated at 14O0C for 22.5 h. After cooling to rt, the reaction mixture was concentrated and the residue was crystallized from MeOH to give a purple solid. This solid was dissolved in THF (500 mL) and water (500 mL), and sodium periodate (62.62 g, 292.8 mmol) was added followed by additional sodium periodate (15.6 g, 72.9 mmol) two hours later. After stirring at rt for an additional 1 h, the reaction mixture was filtered through Celite washing with EtOAc (2 L). The filtrate was washed with saturated NaHCO3 (600 mL) and the organic layer was dried over Na2SO4. After filtration, the filtrate was concentrated and the residue was passed through a pad of silica gel, washing with CH2Cl2/hexanes (75percent- 100percent). The filtrate was concentrated and dried to give 3-formyl-4-nitro-benzoic acid methyl ester as yellowish solid. MS (EI): cal'd 210.0 (MH+), exp 210.2 (MH+).
With sodium periodate; In tetrahydrofuran; water; at 20℃; for 3h; Compounds from 6-carboxybenzothiophenes 3-Form) 4-nitro-benzoic acid methyl ester. A solution of 3-methyl-4-nitro-benzoic acid methyl ester (24.99 g, 128.1 mmol) and N, N-dimethylformamide dimethyl acetal (40.0 mL, 300 mmol) was heated at 140 °C for 22.5 h. After cooling to rt, the reaction mixture was concentrated and the residue was crystallized from MeOH to give a purple solid. This solid was dissolved in THF (500 mL) and water (500 mL), and sodium periodate (62.62 g, 292.8 mmol) was added followed by additional sodium periodate (15.6 g, 72.9 mmol) two hours later. After stirring at rt for an additional 1 h, the reaction mixture was filtered through Celite washing with EtOAc (2 L). The filtrate was washed with saturated NaHCO3, (600 mL) and the organic layer was dried over Na2SO4. After filtration, the filtrate was concentrated and the residue was passed through a pad of silica gel, washing with CH2CI2/hexanes (75percent-100percent). The filtrate was concentrated and dried to give 3-fonnyl-4-nitro- benzoic acid methyl ester as yellowish solid. MS (El) : cal'd 210.0 (MH+), exp 210.2 (MH+).
 

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