Formaldehyde → 1-(diphenylmethyl)-3-(5-hydroxy-2,3-dihydro-1-benzofuran-6-yl)-3-(hydroxymethyl)-1,3-dihydro-2H-indol-2-one

HRID 425517Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 425517
[C:1]1([CH:7]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[CH:10]([C:17]3[C:25]([OH:26])=[CH:24][C:20]4[CH2:21][CH2:22][O:23][C:19]=4[CH:18]=3)[C:9]2=[O:27])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:34]=[O:35].C(NC(C)C)(C)C>C1COCC1.C(OCC)(=O)C>[C:28]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([C:17]3[C:25]([OH:26])=[CH:24][C:20]4[CH2:21][CH2:22][O:23][C:19]=4[CH:18]=3)([CH2:34][OH:35])[C:9]2=[O:27])[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

Komponenten

6

Edukt 3

HCID 712FormaldehydeHCID 7912DiisopropylamineHCID 588724481-(diphenylmethyl)-3-(5-hydroxy-2,3-dihydro-1-benzofuran-6-yl)-1,3-dihydro-2H-indol-2-one

Produkt 1

HCID 588724431-(diphenylmethyl)-3-(5-hydroxy-2,3-dihydro-1-benzofuran-6-yl)-3-(hydroxymethyl)-1,3-dihydro-2H-indol-2-oneAusbeute 65 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of 1-(diphenylmethyl)-3-(5-hydroxy-2,3-dihydro-1-benzofuran-6-yl)-1,3-dihydro-2H-indol-2-one (1.01 g, 2.30 mmol) in THF (50.0 mL) was added paraformaldehyde (1.00 g, 30.0 mmol). Argon was bubbled through the reaction mixture for one hour followed by the addition of diisopropylamine (1.00 g, 10.0 mmol) at 0° C. The reaction mixture was stirred at ambient temperature for 20 hours and diluted with ethyl acetate (100 mL). The resulting mixture was washed with water (2×50.0 mL), dried over sodium sulfate and filtered. The filtrate was concentrated in vacuo to dryness to give 0.67 g (65%) of the title compound: MS (ES+) m/z 486.4 (M+23).

Aufarbeitung

  1. customArgon was bubbled through the reaction mixture for one hour
  2. washThe resulting mixture was washed with water (2×50.0 mL)
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated in vacuo to dryness

Quellen und Nachweise

ORD-Eintrag
ord-7c66a1f02bb342d2a743c61c7cbe89d6
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08106087B2

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