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Chemical Structure| 528-46-1 Chemical Structure| 528-46-1

Structure of 528-46-1

Chemical Structure| 528-46-1

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Product Details of [ 528-46-1 ]

CAS No. :528-46-1
Formula : C9H6O5
M.W : 194.14
SMILES Code : O=C(O)C1=CC=CC=C1C(C(O)=O)=O
MDL No. :MFCD00090830

Safety of [ 528-46-1 ]

Application In Synthesis of [ 528-46-1 ]

* 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 [ 528-46-1 ]

[ 528-46-1 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 939-83-3 ]
  • [ 528-46-1 ]
  • 2'-cyano-4'-nitro-stilbene-2-carboxylic acid [ No CAS ]
  • 2
  • [ 521-73-3 ]
  • alkaline solution [ No CAS ]
  • [ 528-46-1 ]
  • (2-carbamoyl-phenyl)-glyoxylic acid [ No CAS ]
  • 3
  • [ 528-46-1 ]
  • [ 658-27-5 ]
  • [ 1281595-37-6 ]
YieldReaction ConditionsOperation in experiment
75% In ethanol; water; at 20℃; for 15h; General procedure: To a solution of 22 (13 g, 0.067 mol) in water (100 mL), an appropriate phenyl hydrazine (0.067 mol) in ethanol (200 mL) was added. After stirring at room temperature for 15 h, the resultant precipitate was filtered, washed with dichloromethane and dried under vacuum to afford the title compounds 23a-h.
29% In ethanol; water; at 20℃; for 12h; General procedure: A mixture of compounds 11 (15.7g, 81mmol) and 12a-e (88mmol) in ethanol (25.5mL) and water (62.7mL) was stirred at room temperature for 12h. The precipitate was collected by filtration, and then dissolved in 5% potassium hydroxide solution, stirred for 1h. The reaction mixture was filtrated, washed with dichloromethane, and then acidified to pH 3-4 by concentrated hydrochloric acid. The target compounds 13a-e was collected by filtration.
In ethanol; water; at 20℃; for 15h; General procedure: Prepare a mixed solution of 30mL of ethanol and water (1:2), dissolve the corresponding aromatic hydrazine hydrate (10.30mmol) in 20mL of the mixed solution and drop into the 10mL mixed solution of compound 8. The mixture was stirred at room temperature for 15h. Precipitation was filtered and washed with dichloromethane twice, then vacuum dried to give intermediates 9a-s. To the corresponding intermediate 9a-s (10.0mmol), thionyl chloride (15mL) was added and the mixture was heated to reflux for 5-7h. Extra liquid was evaporated under reduced pressure to give compound 10a-s
  • 4
  • [ 528-46-1 ]
  • [ 16732-66-4 ]
  • [ 1616244-82-6 ]
YieldReaction ConditionsOperation in experiment
81% In ethanol; water; at 20℃; for 15h; General procedure: To a solution of 22 (13 g, 0.067 mol) in water (100 mL), an appropriate phenyl hydrazine (0.067 mol) in ethanol (200 mL) was added. After stirring at room temperature for 15 h, the resultant precipitate was filtered, washed with dichloromethane and dried under vacuum to afford the title compounds 23a-h.
In ethanol; water; at 20℃; for 15h; General procedure: Prepare a mixed solution of 30mL of ethanol and water (1:2), dissolve the corresponding aromatic hydrazine hydrate (10.30mmol) in 20mL of the mixed solution and drop into the 10mL mixed solution of compound 8. The mixture was stirred at room temperature for 15h. Precipitation was filtered and washed with dichloromethane twice, then vacuum dried to give intermediates 9a-s. To the corresponding intermediate 9a-s (10.0mmol), thionyl chloride (15mL) was added and the mixture was heated to reflux for 5-7h. Extra liquid was evaporated under reduced pressure to give compound 10a-s
 

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