Iodoethane → Ethyl {3-chloro-4-[4-(ethyloxy)-9-hydroxy-1,3-dioxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl]phenyl}acetate

HRID 913180Notes

Reaction equation

HRID 913180 reaction equation
[CH2:1]([O:3][C:4](=[O:30])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([N:12]2[C:20](=[O:21])[C:19]3[C:18]([OH:22])=[C:17]4[CH:23]=[CH:24][CH:25]=[CH:26][C:16]4=[C:15]([OH:27])[C:14]=3[C:13]2=[O:28])=[C:8]([Cl:29])[CH:7]=1)[CH3:2].C(=O)([O-])[O-].[K+].[K+].I[CH2:38][CH3:39]>CC(C)=O>[Cl:29][C:8]1[CH:7]=[C:6]([CH2:5][C:4]([O:3][CH2:1][CH3:2])=[O:30])[CH:11]=[CH:10][C:9]=1[N:12]1[C:20](=[O:21])[C:19]2[C:18]([OH:22])=[C:17]3[CH:23]=[CH:24][CH:25]=[CH:26][C:16]3=[C:15]([O:27][CH2:38][CH3:39])[C:14]=2[C:13]1=[O:28]

Participants

5

Reactant 3

HCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 178470686ethyl 2-[3-chloro-4-(4,9-dihydroxy-1,3-dioxobenzo[f]isoindol-2-yl)phenyl]acetate

Product 1

HCID 58012488Ethyl {3-chloro-4-[4-(ethyloxy)-9-hydroxy-1,3-dioxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl]phenyl}acetateYield 56.8%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To a solution of ethyl[3-chloro-4-(4,9-dihydroxy-1,3-dioxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl)phenyl]acetate (2.0 g, 4.70 mmol) in acetone (50 ml), was added potassium carbonate (0.656 g, 4.75 mmol) followed by iodoethane (0.38 ml, 4.75 mmol). This was heated at reflux for 24 hours. The solvent was evaporated and water added to the residue. The resulting gummy brown solid was collected by filtration and dried in the vacuum oven. This was purified using reverse phase chromatography to give the title compound (1.21 g, 2.67 mmol). LC/MS: Rt=3.66, [MH]+ 454.

Workup

  1. temperatureThis was heated
  2. temperatureat reflux for 24 hours
  3. customThe solvent was evaporated
  4. additionwater added to the residue
  5. filtrationThe resulting gummy brown solid was collected by filtration
  6. customdried in the vacuum oven
  7. customThis was purified

Sources & evidence

ORD record
ord-9709db605dec4f4f88fd037b91eb9eb1
Source dataset
uspto-grants-2011_09
Patent number
US08026270B2

Reaction notes

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