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Chemical Structure| 98711-43-4 Chemical Structure| 98711-43-4

Structure of 98711-43-4

Chemical Structure| 98711-43-4

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Product Details of [ 98711-43-4 ]

CAS No. :98711-43-4
Formula : C5H7N3O
M.W : 125.13
SMILES Code : O=C(C1=CC=NN1C)N
MDL No. :MFCD00460857

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Application In Synthesis of [ 98711-43-4 ]

* 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 [ 98711-43-4 ]

[ 98711-43-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 17827-60-0 ]
  • [ 98711-43-4 ]
YieldReaction ConditionsOperation in experiment
82% With ammonia; In water; for 16.0h; Example 93: 2-Methyl-2H-pyrazole-3-carboxylic acid amide; o V1H2N >^ J NConcentrated ammonium hydroxide (30 mL) was added to 2-methyl-2H-pyrazole-3- carboxylic acid methyl ester (3.1 g, 22 mmol). The biphasic mixture was stirred for 16 hours and extracted with 10% IPA in chloroform, which gave a white solid (2.3 g, 82% yield): 1H NMR (400 MHz, DMSO-d6) δ 7.88 (br. s, 1H), 7.44 (br. s, 1 H), 7.41 (d, J = 2.0Hz, 1H), 6.83 (d, J = 2.0Hz, 1H), 4.03 (s, 3H).
75% With ammonium hydroxide; at 20℃; for 1.0h; Methyl 1-methyl-1H-pyrazole-5-carboxylate (59, 0.75g, 5.4mmol) was stirred in ammonium hydroxide (7.5mL) at room temperature for 1h. The product was extracted with 10% IPA in chloroform, dried over anhydrous magnesium sulfate and the solvents were removed in vacuum to provide the title compound 1-methyl-1H-pyrazole-5-carboxamide (60, 0.5g, 75% yield).1H-NMR (CHCl3-d, 400 MHz): δH 4.18 (3H, s), 5.91 (2H, br s), 6.56 (1H, d, J = 2.1 Hz), 7.45 (1H, d, J = 2.1 Hz). MS (m/z): 126.1 [M+H]+.
 

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