Potassium Carbonate → Formate

HRID 41476

Reaktionsgleichung

Reaktionsgleichung von HRID 41476
[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]([C:23]([CH3:25])=[CH2:24])=[CH:11][C:10]=1[C:26]([N:28]1[CH2:36][C:35]2[C:30](=[C:31]([CH3:38])[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.[C:39](=O)([O-:41])[O-:40].[K+].[K+].Cl.[CH3:46][N:47]([CH3:51])[CH2:48][CH2:49]Cl>CN(C=O)C>[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([O:15][CH2:16][C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=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](=[C:31]([CH3:38])[CH:32]=[C:33]([O:37][CH2:49][CH2:48][N:47]([CH3:51])[CH3:46])[CH:34]=2)[CH2:29]1)=[O:27])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1.[CH:39]([O-:41])=[O:40]

Komponenten

6

Edukt 3

HCID 11430Potassium Carbonate2×HCID 11636816N,N-Dimethylaminoethyl chloride hydrochloride2×HCID 59263143(2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-(5-hydroxy-7-methyl-1,3-dihydro-isoindol-2-yl)-methanone

Produkt 2

HCID 283FormateAusbeute 256,8 %HCID 59263098(2,4-Bis-benzyloxy-5-isopropenyl-phenyl)-[5-(2-dimethylamino-ethoxy)-7-methyl-1,3-dihydro-isoindol-2-yl]-methanone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A mixture of (2,4-bis-benzyloxy-5-isopropenyl-phenyl)-(5-hydroxy-7-methyl-1,3-dihydro-isoindol-2-yl)-methanone (164 mg, 0.32 mmol), potassium carbonate (112 mg, 0.81 mmol) and 2-(dimethylamino)ethyl chloride hydrochloride (93 mg, 0.64 mmol) in DMF (5 mL) was heated at 60° C. for 17 hours then 90° C. for 6 hours. Further portions of potassium carbonate (112 mg, 0.81 mmol) and 2-(dimethylamino)ethyl chloride hydrochloride (93 mg, 0.64 mmol) were added and the mixture maintained at 60° C. for 72 hours and finally, a further 24 hours at 90° C. The mixture was concentrated in vacuo then the residue was partitioned between ethyl acetate and 0.5N aqueous sodium hydroxide. The organic phase was washed with brine (×2), dried (MgSO4) and concentrated to give a residue which was purified by preparative HPLC (acidic method) to afford the title compound as a formate salt (37 mg, 20%). 1H NMR (MeOH-d4) 8.51 (1H, br.s), 7.43-7.27 (7H, m), 7.24-7.20 (3H, m), 7.17 (0.5H, s), 7.16 (0.5H, s), 6.85 (0.5H, s), 6.84 (0.5H, s), 6.81 (0.5H, s), 6.77 (0.5H, s), 6.74 (0.5H, s), 6.62 (0.5H, s), 5.16 (1H, s), 5.14 (3H, s), 5.09 (1H, m), 5.06 (1H, m), 4.83 (1H, s), 4.74 (1H, s), 4.60 (1H, s), 4.48 (1H, s), 4.28 (1H, t), 4.23 (1H, t), 3.41 (1H, t), 3.37 (1H, t), 2.84 (3H, s), 2.81 (3H, s), 2.27 (1.5H, s), 2.09 (3H, s), 2.07 (1.5H, s). MS: [M+H]+ 577.

Aufarbeitung

  1. temperaturethe mixture maintained at 60° C. for 72 hours
  2. customa further 24 hours
  3. customat 90° C
  4. concentrationThe mixture was concentrated in vacuo
  5. customthe residue was partitioned between ethyl acetate and 0.5N aqueous sodium hydroxide
  6. washThe organic phase was washed with brine (×2)
  7. dry with materialdried (MgSO4)
  8. concentrationconcentrated
  9. customto give a residue which
  10. customwas purified by preparative HPLC (acidic method)

Quellen und Nachweise

ORD-Eintrag
ord-6fac768850984c80abd146e0ad6bab30
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08530469B2

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