1-Bromopropane → [1,3-Dioxo-5-(4-propoxy-phenoxy)-1,3-dihydro-isoindol-2-yl]-acetic acid ethyl ester

HRID 409270Notes

Reaction equation

HRID 409270 reaction equation
[CH2:1]([O:3][C:4](=[O:25])[CH2:5][N:6]1[C:14](=[O:15])[C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:16][C:17]3[CH:22]=[CH:21][C:20]([OH:23])=[CH:19][CH:18]=3)[CH:12]=2)[C:7]1=[O:24])[CH3:2].Br[CH2:27][CH2:28][CH3:29].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH2:1]([O:3][C:4](=[O:25])[CH2:5][N:6]1[C:14](=[O:15])[C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:16][C:17]3[CH:22]=[CH:21][C:20]([O:23][CH2:27][CH2:28][CH3:29])=[CH:19][CH:18]=3)[CH:12]=2)[C:7]1=[O:24])[CH3:2]

Participants

5

Reactant 3

HCID 78401-BromopropaneHCID 11430Potassium CarbonateHCID 67110483[5-(4-Hydroxy-phenoxy)-1,3-dioxo-1,3-dihydro-isoindol-2-yl]-acetic acid ethyl ester

Product 1

HCID 67110548[1,3-Dioxo-5-(4-propoxy-phenoxy)-1,3-dihydro-isoindol-2-yl]-acetic acid ethyl esterYield 89.3%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A mixture of [5-(4-hydroxy-phenoxy)-1,3-dioxo-1,3-dihydro-isoindol-2-yl]-acetic acid ethyl ester (2.479 g, 7.26 mmol), 1-bromopropane (1.32 mL, 14.52 mmol), potassium carbonate (2.01 g, 14.52 mmol), and acetone (25 mL) was refluxed overnight. After cooling to ambient temperature the mixture was concentrated in vacuo and the residue was partitioned between EtOAc and water. The organic phase was washed with saturated NaCl, dried over anhydrous sodium sulfate, and concentrated in vacuo to give the title compound (2.485 g). 1H NMR (200 MHz, CDCl3): δ (ppm)=7.77 (q, 1H, J=8.1 Hz), 7.3-6.8 (m, 6H), 4.38 (s, 2H), 4.20 (q, 2H, J=7.0 Hz), 3.93 (t, 2H, J=6.4 Hz), 1.82 (q, 2H, 6.6 Hz), 1.28 (t, 3H, J=7.0 Hz), 1.06 (t, 3H, J=7.5 Hz).

Workup

  1. temperaturewas refluxed overnight
  2. concentrationwas concentrated in vacuo
  3. customthe residue was partitioned between EtOAc and water
  4. washThe organic phase was washed with saturated NaCl
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-358d9e30ef8843eab8d599bb1668f9e4
Source dataset
uspto-grants-2014_06
Patent number
US08759373B2

Reaction notes

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