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

HRID 1029885Notes

Reaction equation

HRID 1029885 reaction equation
[F:1][C:2]([F:14])([F:13])[C:3]1[CH:4]=[C:5]([CH2:9][C:10]([OH:12])=O)[CH:6]=[CH:7][CH:8]=1.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>[C:32]1([C:22]2([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH:30]3[CH:26]([CH2:27][N:28]([C:10](=[O:12])[CH2:9][C:5]4[CH:6]=[CH:7][CH:8]=[C:3]([C:2]([F:1])([F:14])[F:13])[CH:4]=4)[CH2:29]3)[C:25](=[O:31])[CH2:24][CH2:23]2)[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 676953-(Trifluoromethyl)benzeneacetic acidHCID 212645437,7-Diphenylhexahydro-1H-isoindol-4(2H)-one hydrochloride

Product 1

HCID 67915869(3aRS,7aRS)-7,7-diphenyl-2-[(3-(trifluoromethyl)phenyl)acetyl]-4-perhydroisoindoloneYield 60.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

N,N'-Carbonyldiimidazole (1.13 g) is added to a solution of 3-(trifluoromethyl)phenylacetic acid (1.43 g) in dry dichloromethane (30 cc), cooled to +5° C. The mixture is stirred for 15 minutes at +5° C. and a solution of (3aRS,7aRS)-7,7-diphenyl-4-perhydroisoindolone hydrochloride (2.28 g) and triethylamine (1.96 cc) in dichloromethane (20 cc) is then added. The reaction mixture is stirred at 20° C. for 2 hours, then washed with water (2×150 cc), dried over magnesium sulphate and filtered and the filtrate is concentrated to dryness under reduced pressure (2.7 kPa). The meringue obtained is crystallized from a mixture of acetonitrile (30 cc) and isopropyl ether (30 cc). The crystals are drained, washed with isopropyl ether and dried. (3aRS,7aRS)-7,7-diphenyl-2-[(3-(trifluoromethyl)phenyl)acetyl]-4-perhydroisoindolone (2 g) is obtained in the form of white crystals melting at 184° C.

Workup

  1. temperaturecooled to +5° C
  2. stirringThe reaction mixture is stirred at 20° C. for 2 hours
  3. washwashed with water (2×150 cc)
  4. dry with materialdried over magnesium sulphate
  5. filtrationfiltered
  6. concentrationthe filtrate is concentrated to dryness under reduced pressure (2.7 kPa)
  7. customThe meringue obtained
  8. customis crystallized from a mixture of acetonitrile (30 cc) and isopropyl ether (30 cc)
  9. washwashed with isopropyl ether
  10. customdried

Sources & evidence

ORD record
ord-bb64d478185c43cfb58db2be6b720304
Source dataset
uspto-grants-1992_04
Patent number
US05102667

Reaction notes

Loading…