Potassium Carbonate → (2,4-Bis-benzyloxy-5-isopropyl-phenyl)-[5-2-methoxy-ethoxy-1,3-dihydro-isoindol-2-yl]-methanone

HRID 41420

Reaction equation

HRID 41420 reaction equation
[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C:12]([CH:23]([CH3:25])[CH3:24])=[CH:11][C:10]=1[C:26]([N:28]1[CH2:36][C:35]2[C:30](=[CH:31][CH:32]=[C:33]([OH:37])[CH:34]=2)[CH2:29]1)=[O:27])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[CH2:39][CH2:40][O:41][CH3:42].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(C)=O>[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C:12]([CH:23]([CH3:25])[CH3:24])=[CH:11][C:10]=1[C:26]([N:28]1[CH2:36][C:35]2[C:30](=[CH:31][CH:32]=[C:33]([O:37][CH2:39][CH2:40][O:41][CH3:42])[CH:34]=2)[CH2:29]1)=[O:27])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 11430Potassium Carbonate2×HCID 123162-Chloroethyl methyl ether2×HCID 66672264(2,4-Bis-benzyloxy-5-isopropyl-phenyl)-(5-hydroxy-1,3-dihydro-isoindol-2-yl)-methanone

Product 1

HCID 59263156(2,4-Bis-benzyloxy-5-isopropyl-phenyl)-[5-2-methoxy-ethoxy-1,3-dihydro-isoindol-2-yl]-methanoneYield 104.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

(2,4-Bis-benzyloxy-5-isopropyl-phenyl)-(5-hydroxy-1,3-dihydro-isoindol-2-yl)-methanone (A2 from 2,4-bis-benzyloxy-5-isopropyl-benzoic acid (Preparation B10) and 5-hydroxyisoindoline) (100 mg, 0.2 mmol), 1-chloro-2-methoxy-ethane (23.6 mg, 0.25 mmol) and K2CO3 (34.5 mg, 0.25 mmol) in DMF (4 ml) were combined and stirred for 2 hours at room temperature. A further 0.25 mmol of 1-chloro-2-methoxy-ethane and K2CO3 was added then heated at 90° C. for 16 hours. Reaction cooled to room temperature and diluted with EtOAc then filtered. The filtrate was reduced in vacuo then purified by flash column chromatography, eluting with 100% petroleum ether to 100% ethyl acetate to afford 115 mg of the title compound as a colourless gel. MS: [M+H]+ 552

Workup

  1. temperaturethen heated at 90° C. for 16 hours
  2. customReaction
  3. temperaturecooled to room temperature
  4. filtrationthen filtered
  5. customthen purified by flash column chromatography
  6. washeluting with 100% petroleum ether to 100% ethyl acetate

Sources & evidence

ORD record
ord-9586d480f53b4befa79d4c338f38f66d
Source dataset
uspto-grants-2013_09
Patent number
US08530469B2

Linked notes

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