2-NITROPROPENE
2-NITROPROPENE Basic information
- Product Name:
- 2-NITROPROPENE
- Synonyms:
-
- 2-NITROPROPENE
- 2-Nitro-1-propene
- TL-1147
- 2-nitroprop-1-ene
- 1-Propene, 2-nitro-
- CAS:
- 4749-28-4
- MF:
- C3H5NO2
- MW:
- 87.08
- Mol File:
- 4749-28-4.mol
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2-NITROPROPENE Chemical Properties
- Melting point:
- 65-67 °C
- Boiling point:
- 130.87°C (rough estimate)
- Density
- 1.0559
- refractive index
- 1.4358
- color
- Highly lachrymatory yellowish-green liquid
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2-NITROPROPENE Usage And Synthesis
Uses
Used for Michael addition to afford 1,4-diketones, furans, and pyrroles, and an electrophilic reagent for α-keto cation in the Friedel-Crafts reaction.
Safety Profile
Potentially dangerouspolymerization reaction on contact with alkalies. Whenheated to decomposition it emits toxic fumes of NOx. Seealso NITROALKANES.
Synthesis
2-Nitro-1-propene is prepared by dehydration of 2-nitro-1-propanol (ca. 98% purity commercially or prepared from Nitroethane and formalin, yield 70%) with phthalic anhydride (73%) or Acetic Anhydride-AcONa (85%).
storage
Pure 2-nitro-1-propene may be stored in a freezer for several weeks; best prepared immediately before use since it tends to polymerize; this reagent is a powerful lachrymator. Use in a fume hood.
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