(2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-{4-[2-(2-methoxy-ethoxy)-ethoxy]-1,3-dihydro-isoindol-2-yl}-methanone → HCID 11955512, compound

HRID 334933Notes

Reaction equation

HRID 334933 reaction equation
C([O:8][C:9]1[CH:14]=[C:13]([O:15]CC2C=CC=CC=2)[C:12]([C:23]([CH3:25])=[CH2:24])=[CH:11][C:10]=1[C:26]([N:28]1[CH2:36][C:35]2[C:30](=[CH:31][CH:32]=[CH:33][C:34]=2[O:37][CH2:38][CH2:39][O:40][CH2:41][CH2:42][O:43][CH3:44])[CH2:29]1)=[O:27])C1C=CC=CC=1>CO.[Pd]>[OH:8][C:9]1[CH:14]=[C:13]([OH:15])[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]=[CH:33][C:34]=2[O:37][CH2:38][CH2:39][O:40][CH2:41][CH2:42][O:43][CH3:44])[CH2:29]1)=[O:27]

Participants

4

Reactant 1

HCID 59263110(2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-{4-[2-(2-methoxy-ethoxy)-ethoxy]-1,3-dihydro-isoindol-2-yl}-methanone

Product 1

HCID 11955512HCID 11955512, compoundYield 16%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A solution of (2,4-bis-benzyloxy-5-isopropenyl-phenyl)-{4-[2-(2-methoxy-ethoxy)-ethoxy]-1,3-dihydro-isoindol-2-yl}-methanone in methanol (5 mL) was hydrogenated at atmospheric pressure over 10% palladium on charcoal (12 mg) for 3 hours. A further portion of catalyst (12 mg) was added and hydrogenation continued for a further 7 hours. The mixture was filtered through Celite, eluting with methanol, then the filtrate was concentrated in vacuo to give a residue which was purified by preparative HPLC (basic method). This afforded the title compound as a white solid (17 mg, 16% over two steps). 1H NMR (methanol-d4) 7.25 (1H, t), 7.17 (1H, s), 6.95-6.82 (2H, m), 6.37 (1H, s), 4.89 (2H, br.s), 4.83 (overlaps with H2O, br.s), 4.16 (2H, br.s), 3.82 (2H, br.s), 3.66 (2H, br.s), 3.52 (2H, br.s), 3.39-3.28 (overlaps with MeOH, m), 3.20 (1H, sept), 1.21 (6H, d). MS: [M+H]+ 416.

Workup

  1. filtrationThe mixture was filtered through Celite
  2. washeluting with methanol
  3. concentrationthe filtrate was concentrated in vacuo
  4. customto give a residue which
  5. customwas purified by preparative HPLC (basic method)

Sources & evidence

ORD record
ord-8c0e72ea1a344167ba0d3442f287acac
Source dataset
uspto-grants-2014_11
Patent number
US08883790B2

Reaction notes

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