Sulfuric Acid → 2-Nitro-6-n-propylphenol

HRID 1956672Notes

Reaction equation

HRID 1956672 reaction equation
[CH2:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[OH:10])[CH2:2][CH3:3].[N+:11]([O-])([O-:13])=[O:12].[Na+].S(=O)(=O)(O)O.N([O-])=O.[Na+]>C(Cl)Cl>[N+:11]([C:6]1[CH:7]=[CH:8][CH:9]=[C:4]([CH2:1][CH2:2][CH3:3])[C:5]=1[OH:10])([O-:13])=[O:12]

Participants

6

Reactant 4

HCID 1118Sulfuric AcidHCID 125702-PropylphenolHCID 24268Sodium NitrateHCID 23668193Sodium Nitrite

Product 1

HCID 150363142-Nitro-6-n-propylphenolYield 48%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

2-n-propylphenol (5.00 g, 36.8 mmol) was dissolved in methylene chloride(40 mL) followed by the addition of sodium nitrate (3.43 g, 40.5 mmol). The addition of sulfuric acid (45 mL/3M) was then made, followed by addition of a catalytic amount of sodium nitrite. The mixture was allowed to stir. After 24 hours, the reaction mixture was diluted with methylene chloride and extracted with water. The organic layer was dried over MgSO4 and filtered. The solvent was evaporated and chromatography of the resulting solid on silica gel (4%MeOH/CH2Cl2) gave the desired product(3.2 mg, 48%). 1H NMR (CD3COCD3): d 7.99 (d,1H), 7.46 dd, 1H), 6.90 (t, 1H), 2.70 (t, 2H), 1.70 (m, 2H), 1.00 (t, 3H).

Workup

  1. extractionextracted with water
  2. dry with materialThe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. customThe solvent was evaporated

Sources & evidence

ORD record
ord-79e7ea131b964d038278da499fc45460
Source dataset
uspto-grants-1998_07
Patent number
US05780483

Reaction notes

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