Nitromethane → 1-butyl-4-((E)-2-nitro-vinyl)-benzene

HRID 1891701Notes

Reaction equation

HRID 1891701 reaction equation
[CH2:1]([C:5]1[CH:12]=[CH:11][C:8]([CH:9]=O)=[CH:7][CH:6]=1)[CH2:2][CH2:3][CH3:4].[N+:13]([CH3:16])([O-:15])=[O:14].C([O-])(=O)C.[NH4+]>C(O)(=O)C>[CH2:1]([C:5]1[CH:12]=[CH:11][C:8](/[CH:9]=[CH:16]/[N+:13]([O-:15])=[O:14])=[CH:7][CH:6]=1)[CH2:2][CH2:3][CH3:4]

Participants

5

Reactant 3

HCID 6375NitromethaneHCID 709884-ButylbenzaldehydeHCID 517165Ammonium Acetate

Product 1

HCID 592551041-butyl-4-((E)-2-nitro-vinyl)-benzeneYield 90.2%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 4-n-butylbenzaldehyde (5 g, 30.8 mmol), nitromethane (3.31 mL, 61.6 mmol), ammonium acetate (3.56 g, 46.2 mmol) and acetic acid (50 mL) was stirred for 5 hours at 100° C. The mixture was cooled to room temperature, concentrated under a reduced pressure, and diluted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (5.7 g). This compound was used in the subsequent reaction without being purified.

Workup

  1. temperatureThe mixture was cooled to room temperature
  2. concentrationconcentrated under a reduced pressure
  3. additiondiluted with ethyl acetate
  4. washThe organic layer was washed with water and saturated aqueous sodium chloride
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated under a reduced pressure

Sources & evidence

ORD record
ord-8be4c74e7bb44e579bba3030a3f04d7e
Source dataset
uspto-grants-2013_08
Patent number
US08507530B2

Reaction notes

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