Methanol → HCID 18979818, compound

HRID 2392531Notes

Reaction equation

HRID 2392531 reaction equation
[Cl:1][C:2]1[CH:19]=[CH:18][C:5]([C:6]([CH:8]2[C:14](=[O:15])[CH:13]3[CH2:16][CH:10]([CH2:11][CH2:12]3)[C:9]2=[O:17])=[O:7])=[C:4]([N+:20]([O-:22])=[O:21])[CH:3]=1.[CH3:23]O>S(=O)(=O)(O)O>[CH3:23][O:17][CH:9]1[CH:8]([C:6](=[O:7])[C:5]2[CH:18]=[CH:19][C:2]([Cl:1])=[CH:3][C:4]=2[N+:20]([O-:22])=[O:21])[C:14](=[O:15])[CH:13]2[CH2:16][CH:10]1[CH2:11][CH2:12]2

Participants

4

Reactant 2

HCID 887MethanolHCID 18979817HCID 18979817, compound

Product 1

HCID 18979818HCID 18979818, compound

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidCatalyst

Procedure

A solution of 3-(4-chloro-2-nitrobenzoyl)-bicyclo[3,2,1]-octane-2,4-dione (2.54 mmol) and 2 drops of conc. sulfuric acid in 20 ml of methanol is heated under reflux for 48 hours. The reaction mixture is concentrated and the residue is taken up in ether. The ethereal solution is washed with aqueous sodium bicarbonate and with brine, dried and evaporated to dryness to give 2-methoxy-3-(4-chloro-2-nitrobenzoyl)bicyclo-[3,2,1]-octane-4-one.

Workup

  1. temperatureunder reflux for 48 hours
  2. concentrationThe reaction mixture is concentrated
  3. washThe ethereal solution is washed with aqueous sodium bicarbonate and with brine
  4. customdried
  5. customevaporated to dryness

Sources & evidence

ORD record
ord-f31d9748fa624157a603017a15502ff3
Source dataset
uspto-grants-1998_09
Patent number
US05801120

Reaction notes

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