Nitromethane → (4-((E)-2-nitro-vinyl)-phenyl)-phenyl-amine

HRID 1693936Notes

Reaction equation

HRID 1693936 reaction equation
[C:1]1([NH:7][C:8]2[CH:15]=[CH:14][C:11]([CH:12]=O)=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[N+:16]([CH3:19])([O-:18])=[O:17].C([O-])(=O)C.[NH4+]>C(O)(=O)C>[N+:16](/[CH:19]=[CH:12]/[C:11]1[CH:14]=[CH:15][C:8]([NH:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)=[CH:9][CH:10]=1)([O-:18])=[O:17]

Participants

5

Reactant 3

HCID 6375NitromethaneHCID 517165Ammonium AcetateHCID 2396509Benzaldehyde, 4-(phenylamino)-

Product 1

HCID 59255421(4-((E)-2-nitro-vinyl)-phenyl)-phenyl-amineYield 87.6%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 4-phenylamino-benzaldehyde (3 g, 15.2 mmol) described in Manufacturing Example 69-1-1, nitromethane (1.63 mL, 30.4 mmol), ammonium acetate (1.76 g, 22.8 mmol) and acetic acid (30 mL) was stirred for 6 hours at 100° C. This 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 (3.2 g). This compound was used in the following reaction without being purified.

Workup

  1. temperatureThis 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-b3ec3f175f9e4d348cf084483315b481
Source dataset
uspto-grants-2012_04
Patent number
US08158657B2

Reaction notes

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