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Chemical Structure| 1317-39-1 Chemical Structure| 1317-39-1
Chemical Structure| 1317-39-1

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CAS No.: 1317-39-1

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Product Details of Cuprous oxide

CAS No. :1317-39-1
Formula : Cu2O
M.W : 143.09
SMILES Code : [Cu+].[Cu+].[O-2]
MDL No. :MFCD00010974

Safety of Cuprous oxide

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H302+H332-H318-H410
Precautionary Statements:P261-P264-P270-P271-P273-P280-P301+P312+P330-P304+P340+P312-P305+P351+P338+P310-P391-P501
Class:9
UN#:3077
Packing Group:Ⅲ

Application In Synthesis of Cuprous oxide

* 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 [ 1317-39-1 ]

[ 1317-39-1 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 21803-75-8 ]
  • [ 1317-39-1 ]
  • [ 34662-29-8 ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride; sodium nitrite; In water; 3-Chloro-4-nitro-benzonitrile Sodium nitrite (6.78 g in water (40 mL) at 0 C.) was slowly added to a solution of 4-amino-3-chloro-benzonitrile (10.5 g) in water (30 mL) and concentrated hydrochloric acid (30 mL) also at 0 C. After 10 minutes the solution was poured onto a suspension of cuprous oxide (3.48 g) and sodium nitrite (31.69 g) in water (100 mL) at 0 C. The ensuing mixture was stirred at 0 C. for 1 hour then at 23 C. for 1 hour. The resulting mixture was extracted with dichloromethane and the organic layer washed with saturated sodium chloride. The separated organic layer was dried over sodium sulfate and then concentrated to give 3-chloro-4-nitro-benzonitrile (11.31 g).
  • 2
  • copper(II) nitrate trihydrate [ No CAS ]
  • [ 40800-65-5 ]
  • [ 1317-39-1 ]
  • [ 69747-21-3 ]
YieldReaction ConditionsOperation in experiment
With urea; sodium nitrite; In sulfuric acid; water; ethyl acetate; D. Ethyl 4-hydroxy-3-methylbenzoate Ethyl 4-amino-3-methylbenzoate (3.85 g; 21.5 mmol) was dissolved in hot, 35% H2 SO4 /water and the mixture then cooled to below 5 C. An ice-cold solution of 1.91 g (22.5 mmol) of sodium nitrite in 20 ml of water was then slowly added to the mixture such that the temperature of the mixture never exceeded 5 C. The mixture was stirred at 5 C. for 10 minutes and then treated with 1 g of urea and stirred for a further 10 minutes. A solution of 50 g (207 mmol) of cupric nitrate trihydrate in 750 ml of water was added to the reaction mixture followed by 2.87 g of cuprous oxide. The mixture was stirred for a further 15 minutes and then extracted with 3*300 ml ether. The ether extracts were combined and then washed with water and saturated NaCl solution and then dried (MgSO4). The solution was filtered, the solvent removed in-vacuo and the residue purified by flash chromatography (silica; 13% ethyl acetate in hexanes to 20% ethyl acetate in hexanes) to give the title compound as a pale yellow solid. PMR (CDCl3): delta 1.39 (3H, t, J~7.1 Hz), 2.28 (3H, s), 4.37 (2H, q, J~7.1 Hz), 6.87 (1H, d, J~8.5 Hz), 7.38 (1H, s), 7.79 (1H, dd, J~8.5 Hz, 2.0 Hz), 7.85 (1H, d, J~2.0 Hz).
 

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