1-Phenyl-2-nitropropene (P2NP) Synthesis and Purification

1-Phenyl-2-nitropropene (P2NP) Synthesis and Purification

Reaction scheme:

Equipment and glassware:

Reagents:

  • Benzaldehyde 1000 ml;
  • Nitroethane 1000 ml;
  • Glacial acetic acid 250 ml;
  • n-Butylamine 50 ml;
  • Isopropyl alcohol (IPA) ~1000 ml;

Medium scale

1. Benzaldehyde 1000 ml, nitroethane 1000 ml, glacial acetic acid 250 ml and n-butylamine 50 ml are placed into 10 L flask.
2. A reflux condenser is installed onto the flask.
3. The stirrer and heater are turned on. The reaction mixture is heated up to 60 °С.
4. The reaction is conducted during 2-3 hours with constant stirring at 60 °С.
5. The reaction mixture is poured into an empty 5-10 L bucket.
6. Isopropyl alcohol (IPA) 800 ml is poured into the bucket and stirred.
7. The bucket with mixture is put into a freezer for 12 hours, 1-phenyl-2-nitropropene (P2NP) is crystallized.
8. The product P2NP is filtered on a Buchner funnel (suction filtration procedure), washed be a small amount of cold IPA and dried on air (or in vacuum chamber, optional).


Equipment and glassware:

  • Beaker 500 ml;
  • Funnel;
  • Vacuum source;
  • Laboratory scale (0.1-500 g is suitable) - optional;
  • Measuring cylinders 50 mL and 100 mL;
  • Glass rod and spatula;
  • Filter paper;
  • Buchner flask and funnel;
  • Freezer;
  • Microwave oven 750 W;

Reagents:

  • Benzaldehyde 100 ml;
  • Nitroethane 100 ml;
  • Glacial acetic acid 25 ml;
  • n-Butylamine 20 ml;
  • Isopropyl alcohol (IPA) ~150 ml;

Microwave (small) scale

1. Benzaldehyde 100 ml, nitroethane 100 ml, glacial acetic acid 25 ml and n-butylamine 20 ml are placed into 500 ml beaker.
2. A rubber glove is put onto the beaker.
3. The beaker is put into a microwave oven.
4. The power of the microwave oven is set up on 750 W. Oven is turned on and the mixture is warmed until the boiling. The mixture is cooled down to the room temperature.
5. Step 4 is repeated several times. Minimum 6 times.
6. Next, IPA 100 ml is added, reaction mixture is stirred and put into a freezer for 12 hours. 1-Phenyl-2-nitropropene (P2NP) is crystallized.
7. The product P2NP is filtered on a Buchner funnel (suction filtration procedure), washed be a small amount of cold IPA and dried on air (or in vacuum chamber, optional).


1-Phenyl-2-nitropropene (P2NP) Purification by Recrystallization

1-Phenyl-2-nitropropene (P2NP) can be recrystallized from hexane, methanol, ethanol or isopropanol (IPA).

  1. Precursor-supplier

    CAS 705-60-2/1-Phenyl-2-Nitropropene(P2NP)

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    1-Phenyl-2-nitropropene(P2NP)CAS:705-60-2

    1-Phenyl-2-nitropropene(P2NP)CAS:705-60-2 产品名称 1-Phenyl-2-nitropropene/P2NP 中科院 705-60-2 中频 C9H9NO2 兆瓦 163.17 埃因克斯 627-363-3 国会议员 63-65 °C (lit.) 血压 263.0±9.0 °C(Predicted) 密度 1.141±0.06 g/cm3(Predicted) 外貌 Yellow Crystalline Powder 用法 1-Phenyl-2-nitropropene is an olefin...
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    1-Phenyl-2-nitropropene (P2NP) recrystallization via IPA (isopropyl alcohol). https://bbgate.com/threads/1-phenyl-2-nitropropene-p2np-video-synthesis-from-benzaldehyde-and-nitroethane-henry-reaction.52/
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