Triethylamine → (3aRS,7aRS)-2-[(2,6-dimethoxyphenyl)acetyl]-7,7-diphenyl-4-perhydroisoindolone

HRID 1029893Notes

Reaction equation

HRID 1029893 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([O:9][CH3:10])[C:4]=1[CH2:11][C:12]([OH:14])=O.Cl.[C:16]1([C:22]2([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[CH:30]3[CH:26]([CH2:27][NH:28][CH2:29]3)[C:25](=[O:31])[CH2:24][CH2:23]2)[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.C(N(CC)CC)C>ClCCl>[CH3:10][O:9][C:5]1[CH:6]=[CH:7][CH:8]=[C:3]([O:2][CH3:1])[C:4]=1[CH2:11][C:12]([N:28]1[CH2:27][CH:26]2[CH:30]([C:22]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH2:23][CH2:24][C:25]2=[O:31])[CH2:29]1)=[O:14]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 189315722-(2,6-Dimethoxyphenyl)acetic acidHCID 212645437,7-Diphenylhexahydro-1H-isoindol-4(2H)-one hydrochloride

Product 1

HCID 67915820(3aRS,7aRS)-2-[(2,6-dimethoxyphenyl)acetyl]-7,7-diphenyl-4-perhydroisoindoloneYield 59.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

N,N'-Carbonyldiimidazole (0.52 g) is added to a solution of 2-(2,6-dimethoxyphenyl)acetic acid (0.63 g) in dry dichloromethane (20 cc), cooled to +5° C. The mixture is stirred for 35 minutes at +5° C. The mixture is stirred for 35 minutes at +5° C. and a solution of (3aRS,7aRS)-7,7-diphenyl-4-perhydroisoindolone hydrochloride (1.05 g) and triethylamine (0.44 cc) in dichloromethane (25 cc) is then added. The reaction mixture is stirred at 20° C. for 16 hours, then washed with distilled water (2×50 cc), dried over magnesium sulphate and filtered and the filtrate is concentrated to dryness under reduced pressure (2.7 kPa). The residue is crystallized from a mixture of acetonitrile (16 cc) and isopropyl ether (15 cc). The crystals are drained, washed with isopropyl ether (10 cc) and dried. (3aRS,7aRS)-2-[(2,6-dimethoxyphenyl)acetyl]-7,7-diphenyl-4-perhydroisoindolone (0.89 g) melting at 224° C. is obtained.

Workup

  1. temperaturecooled to +5° C
  2. stirringThe mixture is stirred for 35 minutes at +5° C.
  3. stirringThe reaction mixture is stirred at 20° C. for 16 hours
  4. washwashed with distilled water (2×50 cc)
  5. dry with materialdried over magnesium sulphate
  6. filtrationfiltered
  7. concentrationthe filtrate is concentrated to dryness under reduced pressure (2.7 kPa)
  8. customThe residue is crystallized from a mixture of acetonitrile (16 cc) and isopropyl ether (15 cc)
  9. washwashed with isopropyl ether (10 cc)
  10. customdried

Sources & evidence

ORD record
ord-375083c50ca54ee0bb1576b369d8298f
Source dataset
uspto-grants-1992_04
Patent number
US05102667

Reaction notes

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