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Chemical Structure| 304665-45-0 Chemical Structure| 304665-45-0

Structure of 304665-45-0

Chemical Structure| 304665-45-0

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Product Details of [ 304665-45-0 ]

CAS No. :304665-45-0
Formula : C5H8N4O
M.W : 140.14
SMILES Code : O=C(C1=NN(C)C=C1)NN
MDL No. :MFCD00463987

Safety of [ 304665-45-0 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-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 [ 304665-45-0 ]

* 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 [ 304665-45-0 ]

[ 304665-45-0 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1520-70-3 ]
  • [ 304665-45-0 ]
  • [ 343790-65-8 ]
  • (Z)-N'-(2,6-dimethoxyphenyl)-N-(ethylsulfonyl)-2-(1-methyl-1H-pyrazole-3-carbonyl)hydrazinecarboximidamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
100% To a solution of 2- isothiocyanato-1,3-dimethoxybenzene (Example 465.0, 1.97 g, 10.1 mmol) and <strong>[1520-70-3]ethanesulfonamide</strong> (1 g, 9.2 mmol) in ACN (18 mL), was added cesium carbonate (3.88 g, 11.9 mmol). The reaction was stirred at RT for 16 h. To the reaction mixture was added silver(I) nitrate (3.11 g, 18.3 mmol) and then 1-methyl-1H-pyrazole-3- carbohydrazide (1.28 g, 9.2 mmol). Stirring was continued for 10 min at RT. The reaction was then filtered through a plug of silica gel and concentrated in vacuo to give (Z)-N'-(2,6-dimethoxyphenyl)-N-(ethylsulfonyl)-2-(1-methyl-1H-pyrazole-3- carbonyl)hydrazinecarboximidamide (3.76 g, 100 percent yield). To a solution of (Z)-N'-(2,6- dimethoxyphenyl)-N-(ethylsulfonyl)-2-(1-methyl-1H-pyrazole-3- carbonyl)hydrazinecarboximidamide (3.76 g, 9.2) in 1,4-dioxane (92 mL) was added TFA (4.23 mL, 55.0 mmol). The reaction was stirred at 90 °C for 16h. The reaction was concentrated in vacuo, neutralised with an aqueous solution of sodium bicarbonate, and then extracted with EtOAc. After concentration in vacuo,the residue was purified on silica gel (0-50percent) EtOAc/EtOH (3/1) in heptanes to give Example 350.1 (2 g, 56 percent yield).
 

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