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Ethyl Acetate → 5-Methyl-5-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-5,11-dihydro-chromeno[4,3-c]chromene-2,8-diol

HRID 2055038
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2055038
C([Si](C)(C)[O:6][C:7]1[CH:8]=[CH:9][C:10]2[C:11]3[C:24]([C:26]4[CH:39]=[CH:38][C:29]([O:30][CH2:31][CH2:32][N:33]5[CH2:37][CH2:36][CH2:35][CH2:34]5)=[CH:28][CH:27]=4)([CH3:25])[O:23][C:22]4[CH:21]=[C:20]([O:40][Si](C(C)(C)C)(C)C)[CH:19]=[CH:18][C:17]=4[C:12]=3[CH2:13][O:14][C:15]=2[CH:16]=1)(C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC.[NH4+].[Cl-].C(OCC)(=O)C>C1COCC1>[CH3:25][C:24]1([C:26]2[CH:39]=[CH:38][C:29]([O:30][CH2:31][CH2:32][N:33]3[CH2:37][CH2:36][CH2:35][CH2:34]3)=[CH:28][CH:27]=2)[C:11]2[C:10]3[CH:9]=[CH:8][C:7]([OH:6])=[CH:16][C:15]=3[O:14][CH2:13][C:12]=2[C:17]2[CH:18]=[CH:19][C:20]([OH:40])=[CH:21][C:22]=2[O:23]1
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Komponenten

6

Edukt 4

HCID 8857Ethyl AcetateHCID 25517Ammonium ChlorideHCID 2724141Tetrabutylammonium FluorideHCID 219592841-(2-{4-[2,8-Bis-(tert-butyl-dimethyl-silyloxy)-5-methyl-5,11-dihydro-chromeno[4,3-c]chromen-5-yl]-phenoxy}-ethyl)-pyrrolidine

Produkt 1

HCID 219591455-Methyl-5-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-5,11-dihydro-chromeno[4,3-c]chromene-2,8-diol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 1-(2-{4-[2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-methyl-5,11-dihydro-chromeno[4,3-c]chromen-5-yl]-phenoxy)ethyl)-pyrrolidine (84.5 mg, 0.12 mmol) in THF (7 mL) was added tetrabutylammonium fluoride (1M in THF, 241.4 μL, 0.24 mmol). The mixture was stirred at room temperature for 40 min. Saturated NH4Cl was added followed by addition of ethyl acetate. The resulting layers were separated, the organic layer was washed with brine, and dried over MgSO4. The solvent was evaporated and the residue dried under vacuum for 2 h at room temperature to yield the title compound which was carried on to the next step without further purification.

Aufarbeitung

  1. customThe resulting layers were separated
  2. washthe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. customThe solvent was evaporated
  5. customthe residue dried under vacuum for 2 h at room temperature

Quellen und Nachweise

ORD-Eintrag
ord-9482f4acda904a0d8dd2b5f6f7df6ccb
Quelldatensatz
uspto-grants-2008_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07329654B2

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